Twin Turbo '70 GS

[Bent6]

First off, I've been into Buicks since I was a child. My parents drove me home from the hospital in 1970 in a Buick GS Stage 1 which I still own to this day. I've been a little sidetracked in the Turbo V6 scene since they came out but I've finally decided to pull the trigger on this project that's been rattling around in the back of my head for years now.

I've been hesitant to post this over here but here goes. All the purists and VIN sniffers might as well quit reading here.........................

1970 Buick GS 455 - WAS a numbers matching car until the previous owner sold the engine and transmission. I picked it up off a friend of his on this board in the state you see it now. The car has been done right up to this point including new Then and Now reproduction quarter panels.

The car is currently being built to 25.5 specs with mini-tubs, full cage, some carbon fiber pieces, etc. One of the goals with this car is for it to be fully streetable complete with A/C, drive to the track, bust off a 7 second pass and drive it back home. I looked at possibly using one of the TA aluminum blocks but between the delays with the block, the fact that there isn't a good set of heads for this application as well as the fact there are going to be plenty more obstacles with that engine the decision was made to go another route. Although some may think of this as complete sacrilege, the decision was made to build a modern tech 455 based on an LSX platform due to parts availability among other things. The way I look at it is this - the TA will be just as much of an aftermarket engine as the LSX is an aftermarket engine with the only difference being the TA is still loosely based on the original Buick 455 design just so it will still be partially Buick. I am going out of my way to make the LSX come out to 455 cubes simply for nostalgia's sake.

FWIW, the engine will be a GMPP tall-deck LSX block filled with all the good stuff (Callies crank, Oliver rods, JE pistons, etc) along with fully ported All-Pro heads flowing over 400cfm, solid roller cam, Hogan intake, and controlled by an Electromotive TEC3r ignition/fuel management system with coil on plug technology and dual injectors per cylinder. Extra motivation will be provided by twin Turbonetics 72mm T4 turbos blowing through a liquid intercooler. We will have two completely separate fuel systems - the primary system will be composed of smaller injectors with pump gas while the secondary system will be a larger set of injectors on race fuel that will be brought in as the boost comes into play - an octane on demand system more or less. Power numbers should be over 1000hp with low boost and in the range of 1800hp with the boost cranked up and on the wick. I hope this modern interpretation of the GS will do us all proud when completed.

Here are some pics of the car as it was when I picked it up. I hope to have some updated pics from the chassis shop in the next few days. Stay tuned...................:3gears:

http://i147.photobucket.com/albums/r312/Bent6/P1010680.jpg
http://i147.photobucket.com/albums/r312/Bent6/P1010682.jpg
http://i147.photobucket.com/albums/r312/Bent6/P1010702.jpg
http://i147.photobucket.com/albums/r312/Bent6/P1010700.jpg

[buick46270]

I LOVE IT:laugh: .....most here will not though:spank:

[leo455]

It is YOUR car, but go buy a CHEVELLE:blast:

[Bent6]

Here we go.

You are absolutely correct - it's MY car. Why would I want a Chevelle?

[Bill Smith]

Sounds Awesome!!
Keep us updated on the progress!:3gears:

[v8regalowner]

Sounds Awesome!!
Keep us updated on the progress!:3gears:

Im glad to see someone bought that car. every time i looked at the post it made me think of what i could do with it. Good luck with the build and im sure you will have fun with it.:beer

[sailbrd]

I don't like the steering wheel :laugh: It's the only way to get where you want to go. We only wish we could build a Buick motor to do what a LS can do. Don't like that fact but that's the way it is. Good luck and can't wait to see it finished.

[online170]

Awesome, cant wait to see how it turns out.

You might be aware of Swartz Performance, but he did what youre doing to an LSX motor but used bore and stroke for an olds 455. I beleive that one was N/A motor, but the end result and behaviour was mysteriously like an olds 455. Similar torque and hp performance.

Should be a really cool build. If youre going LSX i expect no less than 2000hp :spank: :laugh:

[Bent6]

I've seen the Olds Schwartz did a while back. Ugly car IMO but it kind of gave me the idea of building an LSX to 455 cubes. I won't be able to use the same bore as the Buick 455 with the LSX but I can make it up with the stroke to come out to 455 cubes. Believe me, if I could have attained my goals using a Buick engine I would have. The LSX was not an easy decision for me.

I think 1800hp will be about it with the 72s but a simple turbo change to some T4 88mm turbos should put it over 2000hp no problem. We decided on the 72s as a compromise to keep it streetable. It will be run on a DTS dyno before it goes in the car so there won't be any guessing as far as HP/TQ numbers.

[Jim Weise]

If I could remember your first name I would call you by it... but we did race in the king of the hill shootout in 2000 at the GS Nats, if I recall correctly..

Anyway..

While your engine choice might be based on a little "fuzzy logic", :puzzled: it really doesn't matter to me what you do with your car. Your certainly correct in saying there is better parts availability, but that's always been true of the bowtie stuff. Ok,, Ok,, corporate GM.. :Dou: But it will be a shame that your finished product won't be able to be run at the Buick national events..

One thing to consider tho..

I am currently building a similar car, with similar goals, but with the new TA block and a Supercharger, Sheet metal FI manifold ect ect..

Based on what we are seeing with the cars like this already out there, a big concern of ours was suspension adjustablity. Originally we were going the mini tub route, but after talking with a few folks, and my experience with Sweesy's tube chassis car, we decided that a back half with a real race 4 link was a better option. It won't be steamroller tires.. (13" slick for the track, and 315/65/15's for the street, but the concern was being able to get the instant center adjustment that will be required to keep it off the guardrails.

And the back seat is not much of a concern, since with a 25.5 cage you won't get anybody in there.. at least not without a funnel anyway.. :pp

John Jr's car is the one real example I know of, that is very similar to yours, but with far less power, he's in the low 10's/high 9's I think, and even at that level of performance, when the boost comes on, it lifts the front end again.. not good at 60' out. Tends to tighten the the poop chute, if you know what I mean.

What's your plan for rear suspension adjustablity?

JW

[Bent6]

Hey Jim -

I do remember racing you guys. Hopefully we can do that again soon!

Like I said, I didn't take the decision lightly. Please don't take this the wrong way but I don't really care about being politically correct for the GSCA either - they can have their cookie cutter cars and keep on limiting ingenuity within the classes. I would rather have a car that can be competitive in many events vs just one or two Buick events. There are several Buicks out there that have gone the non-Buick engine route with turbos - we have discussed maybe trying to get up an exhibition class for BG but we are all too far apart performance wise for any tight racing. We may hit Drag Week and some other bigger national events with this car and hopefully be real competitive.

With that said, I looked into the TA block but when I spoke to Mike it seemed to me that a lot of stuff was still up in the air. At the time, he didn't even have any cam blanks for the thing. I just didn't want to be sitting here a year down the road waiting on parts. I really wanted to run a good flowing set of 6-bolt heads as well. I'm sure the TA will be a nice piece and we may revisit that route down the road when they get all their ducks in a row.

As far as the suspension, we are going to keep the basic stock 4-link arrangement but build in adjustabilty at the frame mouting points as well as the rear end to allow for adjustments to the IC. At this point we have the car sitting at ride height and it only looks like it will require a minor frame notch to accomplish our tire goals. The upper and lower control arms will be double adjustable with heim joint end links. We're fabricating a pretty trick rear end with AFCO coilovers that will allow ride height adjustability from inside the trunk along with a pro-style anti-roll bar. This car won't have huge tubs either as I promised my wife I'd keep the back seat.:Smarty: Tires will be 315/60/15 MT DRs for the street and maybe a 31/10.5w slick for the track.

[Justa350]

For what it's worth, I tubbed my car for 32 x17.5's, and kept the back seat. I slit the floor and wells, moved the inner halves inboard 7" (per side) then filled the gap with sheetmetal. I made templates for the gaps out of heavy paper, then transfered it to the metal.

Just notch the seat frame and re-tack weld heavy steel wire where needed for support. You're only thinning the seat out at the outer corners, so passengers can still ride. Look out for the cage though.

That worked for much more tire than you're planning so don't fear the minitub negating the rear seat!

[Jim Weise]

Your right Will.. if your on a serious deadline, going with parts that are already out there is the only way to make it happen. And there are plenty of "all make" events out there. I just like the challenge of going all Buick, for one, and also like the idea of a 4.5" bore BBB on boost. Can you say torque MONSTER!.


I am pretty sure that once the 30 blocks that are just about complete here are available, TA is going to want to move them, and that will be tough to do without cam blanks, and other misc hardware.

That's a pretty good incentive to get them done..


I also considered building new chassis brackets, to accomidate the lastest and greatest stock type stuff, but at the end of the day, it comes down for me to using proven components, and letting someone else do all the cad work for the IC/CG points. By the time your done, labor and money wise, there really isn't that much difference, between a mild back half car, and what your doing.

Good luck with the project, keep us updated.

JW

[Bent6]

For what it's worth, I tubbed my car for 32 x17.5's, and kept the back seat. I slit the floor and wells, moved the inner halves inboard 7" (per side) then filled the gap with sheetmetal. I made templates for the gaps out of heavy paper, then transfered it to the metal.

Just notch the seat frame and re-tack weld heavy steel wire where needed for support. You're only thinning the seat out at the outer corners, so passengers can still ride. Look out for the cage though.

That worked for much more tire than you're planning so don't fear the minitub negating the rear seat!

I shouldn't have used the term "mini-tub". We're actually putting in full carbon fiber tubs to acheive the ride height we want. The shape of the stock tubs limit the ride height and tire placement. This sucker is going to be LOW - right now we have about 4" of clearance at the front crossmember.

[Bent6]

Your right Will.. if your on a serious deadline, going with parts that are already out there is the only way to make it happen. And there are plenty of "all make" events out there. I just like the challenge of going all Buick, for one, and also like the idea of a 4.5" bore BBB on boost. Can you say torque MONSTER!.


I am pretty sure that once the 30 blocks that are just about complete here are available, TA is going to want to move them, and that will be tough to do without cam blanks, and other misc hardware.

That's a pretty good incentive to get them done..


I also considered building new chassis brackets, to accomidate the lastest and greatest stock type stuff, but at the end of the day, it comes down for me to using proven components, and letting someone else do all the cad work for the IC/CG points. By the time your done, labor and money wise, there really isn't that much difference, between a mild back half car, and what your doing.

Good luck with the project, keep us updated.

JW

Believe me Jim, if the TA stuff comes together down the road and they develop a suitable set of heads, I'll sell the LSX and build a TA/Buick engine. Either way, power is not going to be an issue for either engine platform.

You are absolutely correct about the cost on doing this vs a back half. The chassis decisions were based on the fact that outlaw 10.5 racing is really big in my area and it most always centers around the "stock rear suspension" rules although that term is used loosely. I don't really plan on this being a race car but I just can't seem to help myself.:rolleyes: Did I mention it's going to have A/C and leather seats?

[Bent6]

Here's a couple of pics of the car as it currently sits. It ain't much as far as progress goes but we're still waiting on parts - mainly the real wheels. Car is sitting real close to the final ride height with the 315/60 DRs just sitting under it to get a feel for how it'll look. The seats are Corbeaus.

http://i147.photobucket.com/albums/r312/Bent6/09-10-10_004.jpg
http://i147.photobucket.com/albums/r312/Bent6/09-10-10_003.jpg
http://i147.photobucket.com/albums/r312/Bent6/08-29-10_031.jpg

[GoldBoattail455]

Will,
Looking good! Very nice project. Keep us updated, I know I'll be following closely. :TU:

[online170]

What will you be using for a transmission??

At that power level, using anything will be a challenge. But with the LSX base, I would immediately be looking at a 6spd.

[buick46270]

with that much power a glide would be the obvious choice, you can still get away with a th400....but a gv overdrive unit on the back of the powerdlide would be nice.

[Bent6]

I don't think a 6 speed of any kind would last for long behind this much power. Trans will be whats called an Outlaw Turbo Glide. Basically it's a TH400 with all the good stuff including a billet spragless valve body and billet gear set. It has the ability to launch in 1st OR 2nd gear off the transbrake. A lot of 10.5 cars are running these now - the ability to launch in 2nd softens the hit on marginal tracks. I just switched from a Glide to one of these in my 7 sec V6 race car. A Gear Vendors OD would be nice but they add a lot of weight which we're trying to keep down as much as possible.

[buick46270]

so is it like the th210 XHD that Lynch and all the outlaw guys like?

[Bent6]

Yes - that's the one Rossler builds but they are the same.

[Bent6]

Wheels finally showed up.

MT 315/60s on Weld Vitesse 15 x 12s custom built with double beadlocks and 15 x 3.5s with MT 26 x 4 x 15s

Now we can get things rolling on the chassis.............

http://i147.photobucket.com/albums/r312/Bent6/09-16-10_003.jpg
http://i147.photobucket.com/albums/r312/Bent6/09-16-10_005.jpg

[buick46270]

those wheels are awesome, and a very shiny penny lol

[Postsedan]

Any current updates?

Dan

[bignastyGS]

I see a Hemi......

[Bent6]

Any current updates?

Dan

Started on the cage last week. Rear tires are under the car at ride height. I hope to have the engine completed by the end of this month so we can get it on the dyno. I should have some project pics later on this week.


I see a Hemi......

A blown and injected Ray Barton Hemi at that!

[1967BuickGS400]

Sweet project. Cant what to read more.

[Bent6]

UPDATE -

Here are some progress pics with the rear tires under the car and on the cage construction. Main hoop and rear bar are mocked up. Cage will be 25.5 specs with funny car setup on drivers side. The rear pro-stock style bars are a little different in that they are designed to follow the roof line. We're trying to keep the rear seat usable since this is a "street" car after all. Rear tires are just sitting under the car at this point but it gives an idea of what the stance will be.

The engine block machining is done and we're about a week away from getting the heads. Hope to have everything start coming together on the engine toward the end of this month with the key word being "HOPE".

Stay tuned...............................

http://i147.photobucket.com/albums/r312/Bent6/10-12-10_020.jpg http://i147.photobucket.com/albums/r312/Bent6/10-12-10_028.jpg

http://i147.photobucket.com/albums/r312/Bent6/10-12-10_021.jpg http://i147.photobucket.com/albums/r312/Bent6/10-12-10_022.jpg

http://i147.photobucket.com/albums/r312/Bent6/10-12-10_025.jpg http://i147.photobucket.com/albums/r312/Bent6/10-12-10_026.jpg

http://i147.photobucket.com/albums/r312/Bent6/10-12-10_023.jpg

[jay3000]

I told you that you would get some love here.. Just not everyone's.. I like it...:3gears:

[2tweaked]

Real nice piece Will.
Even room for the car seats. [he, he]

[Bent6]

Here's some updated pics of the cage progress. We decided to go ahead and build it to 25.3 specs since it's easier to do now than later. The car will more than likely never go fast enough to need it but that certifies down to 6.50. I can't say enough about the quality of work from ARK Hot Rods. Thanks again John for being my photographer on call.

I promised my wife from the beginning that I wasn't building a race car and that it would have a back seat - the funny car cage makes it easier to get in the back seat area plus it's a mobile jungle gym for the kidos - at least that's my argument!

Who am I kidding........she's gonna be pissed!:blast:
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_005.jpg http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_010.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_007.jpg http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_012.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_018.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_017.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_022.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_015.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_020.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_024.jpg

[Bent6]

Here's a few of shots of the engine mocked up in the car.

That LSX block looks tiny in there but there's a WHOLE LOTTA plumbing that will be on top of it when it's all said and done so it's nice to have all the extra room.


http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_001.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_002.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-05-10_003.jpg

[jay3000]

No carpet. No stereo. No headliner. Got heat?? No..

She'll be pissed..:bla:

If it looks like a duck and quacks like a duck..

[online170]

So the argument you came up with is, "Its only a race-car where I sit"?

Thats actually not that bad. :TU: :Dou: and yes, she will be pissed.

[sailbrd]

If all else fails assume your wife is stupid :idea2: Hasn't worked for me either.:laugh:

[txsqueeze]

That is 1 mean looking Buick!:eek2:
And to everyone who doesn't like it or says:Smarty: "Go buy a Chevelle", :moonu: , that's all I have to say about that. Purists, puh.

[carmantx]

Staying with stock type front suspension?

Nice build. Anxious to see more.

[66larkgs]

nice looking buick!!! got to love those lsx blocks!!! how many cubes are you running? what type of turbo's? good luck on the build!!

paul
66 larkgs
(t67)turbo 401 nailhead

[Bent6]

Thanks for the compliments.

The car will have a full interior with carpet, headliner, air conditioning, power steering, etc - it's a "street" car - remember? :laugh: But she'll STILL be pissed!

The front suspension will be stock style but heavily modified.

It will be 455 cubes for nostalgia's sake and the "street" turbos will be 72mm. They should be good for around 1800hp on kill. A switch to T4 framed 88mm turbos would put it right at 2000hp but would sacrifice streetability.

[66larkgs]

what are you running for fuel managment? ignition? 6btm box fuel injected or blow thru? i bought a nice blow thru carb from CSU. They are some great guys over thier..
Paul
66larkgs
401 turbo nailhead

[Postsedan]

Better get "Tilt Wheel" :laugh:

Dan

[JOE RIV 1]

Very nice cage! Oh she WILL be pissed:eek2:

[dosko]

Hey Will; She's gonna be sweet. Maybe I missed it somewhere in the reading, but what are you looking at for final weight ??
Great Job
Wil

[Bent6]

what are you running for fuel managment? ignition? 6btm box fuel injected or blow thru? i bought a nice blow thru carb from CSU. They are some great guys over thier..
Paul
66larkgs
401 turbo nailhead

No blow thru stuff for me - I'm a fuel injection man. Engine management will be an Electromotive TEC3r which uses a unique and extremely accurate ignition.


Hey Will; She's gonna be sweet. Maybe I missed it somewhere in the reading, but what are you looking at for final weight ??
Great Job
Wil

Hard to say at this point but we have to keep it under 3600# to get the 25.3 certification. We have some trick carbon fiber parts ideas to help keep her trim. I hope it winds up around 3400#.

[66larkgs]

it's nice when your building a lsx because everthing is accessible to make big power.What are you using for a bottom end? did you end up using the tall deck height lsx block and a set of custom rods for your lsx to get you 455ci? those motors are unbelieveable!! well best of luck and let me know any of those secrets you are using to let your wife support you addiction to hp!! i'm getting married next year and always looking for tips..i am tring to get all the cars done before the big date..
best of luck
paul
66larkgs
turbo nailhead

[Bent6]

It's a tall deck GMPP LSx block stuffed with Callies forged crank, Oliver billet rods and JE Pistons. The bore can't go as big as a BBB but we're making it up with the stroke. Heads will be fully ported All-Pros flowing around 400cfm on the intake side - another reason the decision was made to go the LS route.

My wife knew what she was getting when we got married. One of our first dates was to go pick up a race car. :laugh:

[Postsedan]

Will,

You bought this 1970 GS from my good friend Wayne.

Wayne put a lot of Love and Passion into this car. Very cool build your doing.

I will be very interested in knowing more about the Carbon Fiber add-ons your planning on putting on this Buick.

Dan

[Bent6]

Will,

You bought this 1970 GS from my good friend Wayne.

Wayne put a lot of Love and Passion into this car. Very cool build your doing.

I will be very interested in knowing more about the Carbon Fiber add-ons your planning on putting on this Buick.

Dan

Hey Dan-

I believe you were the one I originally contacted about the car. Wayne is a good guy and I know he busted his butt to get it to the point it is now. He even wanted to go the extra mile to hang the other new quarter panel just to make sure it was "right". I hope he's not horrified at what we are doing with the car. I know it's looking a lot like a RACE car right now but the end product will hopefully be a top shelf street car capable of kicking some serious butt on the track.

As far as the carbon fiber goes, the biggest plan we have at the moment is for the rear wheel tubs to be fabbed out of carbon fiber. We may use more in some other places as thing progress and as long as it's not cost prohibitive.

[Postsedan]

Will,

Yes, I do remember speaking with you. Wayne, does do great work and is always willing to do the "Right Thing"

Wayne and I will be watching your build, keep the pictures coming :TU: :kodak:

What color are you planning on painting the car?

Dan

[Bent6]

Color is a long way off and still up in the air. It won't be the current Bamboo Cream though........

[Mr Big]

Looks like you'll need yoga lessons before you climb into it. :kodak:

Yeah she's gonna be pissed!

[Bent6]

Some more progress pics of some of the 25.3 substructure and gusseting.

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS/11-12-10_006.jpg http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS/11-12-10_027.jpg

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS/11-12-10_008.jpg http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS/11-12-10_014.jpg

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS/11-12-10_017.jpg http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS/11-12-10_019.jpg

[66larkgs]

great looking work.. looks like it is worth every penny...
what are you looking to run? 8.50 car?

paul
66larkgs
turbo nailhead

[Bent6]

Cage will certify to 6.50. The goal is to run in the 7s in street trim complete with AC. The car will capable of going much faster with larger turbos but I'm not building another race car - remember? :laugh:

[66larkgs]

are you building the car and the cage yourself? i didnt know if this is your shop..

[Postsedan]

Will,

What happened to the last 6 pictures? Cannot view? :confused:

Dan

[Bent6]

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-12-10_006.jpg http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-12-10_027.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-12-10_008.jpg http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-12-10_014.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-12-10_017.jpg http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/TT%20GS%20110510/11-12-10_019.jpg

REPOSTING - I screwed up the image links somehow.

[Bent6]

Here's some of the substructure under the car.

http://i147.photobucket.com/albums/r312/Bent6/11-17-10_001.jpg http://i147.photobucket.com/albums/r312/Bent6/11-17-10_002.jpg

http://i147.photobucket.com/albums/r312/Bent6/11-17-10_003.jpg http://i147.photobucket.com/albums/r312/Bent6/11-17-10_004.jpg

http://i147.photobucket.com/albums/r312/Bent6/11-17-10_006.jpg

http://i147.photobucket.com/albums/r312/Bent6/11-17-10_010.jpg http://i147.photobucket.com/albums/r312/Bent6/11-17-10_013.jpg

http://i147.photobucket.com/albums/r312/Bent6/11-17-10_012.jpg http://i147.photobucket.com/albums/r312/Bent6/11-17-10_019.jpg

[Todd69GS]

Very nice work Will. Which oil pan will you be running? I've seen some tie rod issues on some of the pans with the LS swap.

[73 Centurion]

It'll never hold up. The first direct hit with a Trident missile and it will crumple right up.

John

[Bent6]

We're fabbing up a custom sheetmetal pan for it.

I don't think we'll have any issues anyway since we're doing away with the stock steering and going to a rack and pinion.

We used special nuclear resistant chromoly tubing so we should be good to go with any missle attacks.

[TimR]

Wow that thing looks evil....I love it... :TU:

[TomGS72@aol.com]

WOW!!! Looking good.

[Bent6]

Some updates on the chassis build for those interested.........

Frame notch boxed in

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/December/12-10-10_019.jpg

Control arm mounting points reinforced/tied into cage

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/December/12-10-10_020.jpg

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/December/12-10-10_017.jpg

New adjustable UCA mounts

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/December/12-10-10_005.jpg

New adjustable LCA mounts

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/December/12-10-10_008.jpg

Upper and lower control arms

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/December/12-10-10_028.jpg


Believe it or not we're going to have to add a couple of more bars to tie the rear frame rails back into the main cage crossmember to make the NHRA chassis inspector happy. A little overkill IMO but he's the one with the certification stickers. There's a lot more hoops to jump thru to get the 25.3 certification. Once he signs off on it it'll be ready to start welding it all up. Waiting on some brackets for the rear end housing and the plan is to have it back on the ground by Christmas. Delays with the engine have it pushed back to the first of the year. :rolleyes:

[theone61636]

Holy crap, those control arms are HUGE! Great build. Can't wait to see the engine bay start to come together.

[junglejim75]

Absolutely beautiful :TU:

[Postsedan]

The Holidays are now over, let's see some updates.

[Bent6]

We're waiting on some parts to finish the rear suspension. It will be worth the wait. Nobody's seen anything like this before.

The engine is done - just waiting for my turn to get it on the dyno.

[Postsedan]

Will,

OK, we will be waiting for the big surprise :3gears:

[Justa350]

Nobody's seen anything like this before.

Oh this should be good!:TU:

[txsqueeze]

any updates?

[Postsedan]

Any sneak peeks :Do No:

[bignastyGS]

That has to be a heavy car now what is the weight with all the extra tubing???

[Bent6]

That has to be a heavy car now what is the weight with all the extra tubing???

Not really. Chromoly tubing is relatively light compared to mild steel. What we've added in weight with the cage we've lost with the sheetmetal rear end housing, control arms, wheels, etc, etc. The plan is to use some ultra light carbon fiber pieces in select places to help keep her trim. The engine will be pretty light as well. Car has to stay under 3400# for the SFI 25.3 certification.

[Bent6]

Here you go Dan. :laugh: You'll have to wait a little longer for the rear suspension.............

Well, it's been a while but we have made a little progress. Car is back on all fours at what we hope is close to the final ride height. The rear suspension should start coming together next week.

The engine itself is 95% done. Finishing up the liquid intercooler next week and then just waiting our turn to get it on the dyno. We can't do much more with the chassis until we get the engine in the car. Anyways, here's what it looks like right now.

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Progress%2021111/02-11-11_023.jpghttp://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Progress%2021111/02-11-11_027.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Progress%2021111/02-11-11_030.jpghttp://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Progress%2021111/02-11-11_033.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Progress%2021111/02-11-11_040.jpghttp://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Progress%2021111/02-11-11_043.jpg

[Postsedan]

Will,

Love the Stance! Keep us Posted of more progress. Looking Great! :TU:

Dan

[Postsedan]

Will,

Another month has gone by, any updates :kodak:

[Bent6]

Engine delays have prevented us from making any more progress. I can however report that the engine is loaded on the dyno right now. We had some issues with the throttle linkage not working smoothly so it all got cut off and is being redesigned. Hopefully we'll have some HP numbers later on in the week and maybe even a video of the money pulls.

[Postsedan]

Great, looking forward to it. Pics too!:kodak:

[Bent6]

Here ya go Dan. I may drop this thread since there doesn't seem to be a lot of interest over here. Lot of trouble keeping multiple threads updated. It's on TB.com http://www.turbobuick.com/forums/turbo-v8-conversions/321260-twin-turbo-buick-gs-project-4.html#post2746464 and Yellowbullet.com http://www.yellowbullet.com/forum/showthread.php?p=5969860#post5969860 as well. Anyway - heres where we are now.:laugh:

Finally have some pics of the bullet. It's loaded on the dyno - waiting on the blowoff valve transition from the intercooler to the throttle bodies to get back from the polisher - supposed to have it first of the week. Also waiting on a jackshaft from March for the serpentine pulley system. The theme of this entire build has been hurry up and wait :cool:. I should have some #s to post next week............................


Front view :o:o:o
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Engine/wilkersons_engine_stuff_012.jpg


Liquid intercooler - 6" thick core should get the job done.
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Engine/wilkersons_engine_stuff_005.jpg


Custom pan for crossmember clearance......yeah, yeah, yeah - I know - a bowtie:af: :bla:
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Engine/wilkersons_engine_stuff_008.jpg


Jesel shaft mounted rockers
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Engine/wilkersons_engine_stuff_009.jpg


Here's a shot of the new throttle linkage to correct an issue from earlier. Has the idle and full throttle stops machined in as well as provisions for the TPS sensor - all in one piece.
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Engine/throttle_linkage_004.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Engine/throttle_linkage_002.jpg


Anyone who knows me can tell you I'm a wiring fanatic - this should fit right in. Custom Mil-Spec connector for all 16 injectors and all sensors except for the coils. Coils and magnetic pickups will be in a separate harness to minimize noise.
http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Engine/wilkersons_engine_stuff_011.jpg

[jay3000]

Almost 5000 people have looked at the thread.. We're just speachless.. Please don't drop it unless it becomes a big hassle..

[breakinbuick11]

what Jay said! I love those wheels!

[Buick#455]

I agree, tons of interest in this Build. Keep up the post and the GREAT Work.:gp:

[Bent6]

After all the delays waiting on parts, scheduling conflicts to actually get it on the dyno, having to pull it back off the dyno to find an oil pressure problem, not to mention 4 throttle linkage redesigns/changes, 2 injector changes to get the DC under 100, and 1 sheared off trigger wheel, we finally are starting to get somewhere with this thing. Needless to say, it has not been easy so far but at least it will be ironed out before it goes in the car.

So far we're at 1400hp @ 6300rpm with 994ft/lbs @ 3000 on only 18psi. We've only been running it to 6300 while we're doing the development pulls. It idles like a kitten and spools almost instantly. So far it is exceeding our expectations. We set it up to run in the 35psi range on kill so there's PLENTY more to come. Now that all the little issues seem to be ironed out the plan is to lean on it Monday. Stay tuned..........

Here it is loaded on the dyno and decked out with all the bling including AC and PS. There's so much crap hanging off this thing I don't think you could tell it's not a Buick if it weren't for the valve covers.

http://i147.photobucket.com/albums/r312/Bent6/Project%20TT%20GS/Engine/BEFORE_SHOTS_455_TT_003-1.jpg

[roboteq-1@hotma]

Dude- that is just plain sick. I'll even forgive the chevy core.:beers2:
double the boost = double the HP, I theenk, so....2800 HP & 2k torque??! If you can get it to hook you need to start racing Lambos for pinks.
Just Awesome!!:TU: :TU:
Robert

[68 LeSabre 4dr]

Very nice work everywhere I look ! :eek2:


Great Job !!!!:beers2:

[theone61636]

After all the delays waiting on parts, scheduling conflicts to actually get it on the dyno, having to pull it back off the dyno to find an oil pressure problem, not to mention 4 throttle linkage redesigns/changes, 2 injector changes to get the DC under 100, and 1 sheared off trigger wheel, we finally are starting to get somewhere with this thing. Needless to say, it has not been easy so far but at least it will be ironed out before it goes in the car.

So far we're at 1400hp @ 6300rpm with 994ft/lbs @ 3000 on only 18psi. We've only been running it to 6300 while we're doing the development pulls. It idles like a kitten and spools almost instantly. So far it is exceeding our expectations. We set it up to run in the 35psi range on kill so there's PLENTY more to come. Now that all the little issues seem to be ironed out the plan is to lean on it Monday. Stay tuned..........

Here it is loaded on the dyno and decked out with all the bling including AC and PS. There's so much crap hanging off this thing I don't think you could tell it's not a Buick if it weren't for the valve covers.




Especially, if you paint it all Buick Red...hint hint. Looking great BTW!

[sean Buick 76]

Very cool stuff! I would love to get my chassis all beafed up like yours, I even have lots of spare cro-mo tubing.

This inspires me to get my turbo skylark done!

I really like everything about the turbo setup as well as the fuel injection. What brand is the intake and anteater looking intake tubing?

[jay3000]

Holy crap.. I think that about says it all..

[Justa350]

That engine cracks me up, in a good way. Horrifying power potential, blinged out so much you would be happy to eat of any part of it, AND A/C and power steering!!?? GREAT design work, every bit of it.

[Bent6]

We wrapped up the dyno session. It starts clean, idles smooth, and spools almost instantly.

1600 hp @ 6000 RPM
1430 ft/lbs @ 4800 RPM

This was a conservative tuneup with only 22 psi boost. We were shutting the pulls off at 6000 RPM just to be safe. To give an idea of the full potential, the engine is set up to run in the 35 psi range. We didn't even make it breathe hard.

It starts pulling off 1000 ft/lbs at just under 3700 RPMS.

It made 930 hp with a measley 7 psi boost on pump gas and 13 psi put it at 1207 hp.

A switch to 88mm turbos will pick it up an easy 500 hp putting it over the 2k hp mark but in it's current trim it should be very streetable which is the primary goal - for now. :laugh:

Love it or hate it, these LS motors are simply awesome.

[68riviera430]

amazingly ridiculous.
and I love those wheels!!!

[2tone-t]

That's alot of chrome. You could use that engine as a mirror to help you shave hahaha. That's gonna be a scary car at the track hahaha.

[sean Buick 76]

Wow great numbers!:beers2:

[Bent6]

For those interested........

Haven't updated this thread in a while. We are in the home stretch of the fabrication stage of the build now.

Cantilver rear shock setup - first pic is looking through the fender - small strut on right is for mockup of where the shocks go inside the trunk - strut running down through the floor connects the cantilever to the rear end housing. The wheel tubs will be carbon fiber - they will go in last so we don't damage them during fabrication.

http://i147.photobucket.com/albums/r312/Bent6/Project TT GS/Progress 90111/0812111659.jpg

http://i147.photobucket.com/albums/r312/Bent6/Project TT GS/Progress Dec 2011/12-23-11_006.jpg

Fuel/water cells - cell on left is water tank for liquid intercooler with pump built in, large cell in center is for pump gas for the primary injectors, and the cell on the right is for the race fuel to the secondary staged set of injectors.

http://i147.photobucket.com/albums/r312/Bent6/Project TT GS/Progress Dec 2011/12-23-11_001.jpg
http://i147.photobucket.com/albums/r312/Bent6/Project TT GS/Progress Dec 2011/IMAG0123.jpg


Engine in car with liquid intercooler mounted

http://i147.photobucket.com/albums/r312/Bent6/Project TT GS/Progress Dec 2011/12-23-11_010.jpg

Engine in car with charge piping completed

http://i147.photobucket.com/albums/r312/Bent6/Project TT GS/Progress Dec 2011/IMAG0125.jpg

Car on the ground at what will be close to the final ride height with the drag wheels/tires.

http://i147.photobucket.com/albums/r312/Bent6/Project TT GS/Progress 90111/09-01-11_001.jpg

[Justa350]

Wicked. I can't imagine how many tanks of argon have gone into this thing! Killer fabricating everywhere.

[GNandGS]

Enjoyed the pics

[rollerball]

All the good stuff from Nelson Racing....i wonder how hard it is not to kill yourself with a powerlevel that high....insane!

[Heavy D]

Sick!

[RD929]

It is way too late right now...and that just blew my mind. Those dyno numbers are insane.

[staged70]

As my daughter says OMG!

[Postsedan]

Will,

Ha, I was just thinking about you and your build...just the other day. Great progress. I`ll be sure to call Wayne and have him see these progress pics. Keep up the great work and progress.

Any idea yet, if your going to keep the paint original color or something else?

[Bent6]

Will,

Ha, I was just thinking about you and your build...just the other day. Great progress. I`ll be sure to call Wayne and have him see these progress pics. Keep up the great work and progress.

Any idea yet, if your going to keep the paint original color or something else?

I haven't been on this board in a while - sorry for the late response. The car is coming along slowly but surely. The work Wayne did (you may have been involved as well) before I picked it up has made things easier. It's nice to work on a clean car without all the gunk, grease, and rust that can be typical. We did run into some hidden rot when we cut out the firewall but it was nothing major. No way anyone could have seen it with the firewall still intact. There's a thread over on yellowbullet.com with more detailed and up to date pics on the fabrication up to this point. >>>>> http://www.yellowbullet.com/forum/showthread.php?t=303729&page=9

The paint color won't be the bamboo cream - I've got something else in mind. :laugh:

[pocket5s]

Very nice indeed. I noticed the Nelson intake right off, didn't know he sold that stuff individually. He is also big on the duel fuel stuff and I think most of his turbo setups are done using it. The only thing that would make that motor stand out even more would be a pair of his mirror image turbos :)

[RD929]

I showed my godfather this thread who has been a long time Pontiac guy for decades. Blew his mind. He was shocked at all the metal work for the bars. I feel SOOO bad for the 20 something idiot in a low end import like a civic who pulls up next to you thinking he's going to teach you a lesson. You're going to ruin his life.

[sailbrd]

I showed my godfather this thread who has been a long time Pontiac guy for decades. Blew his mind. He was shocked at all the metal work for the bars. I feel SOOO bad for the 20 something idiot in a low end import like a civic who pulls up next to you thinking he's going to teach you a lesson. You're going to ruin his life.

don't think this thing is a sleeper

---------- Post added at 03:50 PM ---------- Previous post was at 03:37 PM ----------

Bobb's Procharged GS is only making 1500 HP (how can you say only 1500 HP?) and he can lift the wheels at the 1000 ft mark. What will this thing do.

[pocket5s]

don't think this thing is a sleeper

No, but it would take a semi-educated person to realize what he has under the hood.

Bobb's Procharged GS is only making 1500 HP (how can you say only 1500 HP?) and he can lift the wheels at the 1000 ft mark. What will this thing do.

Well the block is good for 2000hp and Nelson racing has built at least 3 1800hp+ LX-based engines, a 1450HP one and few in the 1100hp range. All were street engines that were dual fuel capable like this one. So if this one didn't do 1500 given it has more cubes than all of nelson's example I'd be surprised.