New Twin Turbo Big Block Buick Build

[gs455david]

Had 71 GS that was featured in Car Craft and sold to another board member and am now in the middle of my twin turbo build. 455 with Stage 2 TE ported by Gessler, TA intake, 2 66mm turbos, Rossler Terminator 4 tranny, Moser 9" rear end, etc. Here are some pics.

[SDTempest]

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[offbrand Racing]

David,

Looking good! Do you plan to intercool that beast?

Jim

[gs455david]

yep. One intercooler for each turbo. Should all be done over the next two weeks. Waiting for the brakes from Wilwood as well.

[theone61636]

Do you plan on running power steering? I wish someone would come up with a tt solution for cars that use A/C and power steering. Has anyone ever though to mount the turbos right where the stock manifolds exit like the APS kits?

[ss4825]

David, Can you post some specs for your engine build? I'm currently collecting parts to build an injected tt 455 for my next project. Looks great BTW.

Thanks,

[bostongsx]

Who makes your rear upper control arms???

[SDTempest]

Who makes your rear upper control arms???

It's the complete Wolfe Racecraft single sway bar A-Body kit.

[td99]

thats sweet dude, what size downpipes are you putting on it


Cody

[gs455david]

two 3 inch downpipes. Build will be 455 .10 over most likely or stock bore if possible, studded with JE pistons, 8 3/4 to 1. Cam to be suggested by Nelson Racing Engines most likely or Duttweiler. Stage 2 TE max effort port work on that and sp2 by Gessler, T & D rockers. CSU carb, Rossler Terminator 4 Turbo 400 with brake. Moser 9 inch rear end. Inland Empire Driveshaft. MSD 7531, Wilwood brakes all around. Electrical evac system for valvecovers. 2 Bell intercoolers. 2 Garrett 66.5mm turbos with 81 exducer. Tial 38 mm wastegates and Tial 60 mm blow off valve, etc.

[SDTempest]

two 3 inch downpipes. Build will be 455 .10 over most likely or stock bore if possible, studded with JE pistons, 8 3/4 to 1. Cam to be suggested by Nelson Racing Engines most likely or Duttweiler. Stage 2 TE max effort port work on that and sp2 by Gessler, T & D rockers. CSU carb, Rossler Terminator 4 Turbo 400 with brake. Moser 9 inch rear end. Inland Empire Driveshaft. MSD 7531, Wilwood brakes all around. Electrical evac system for valvecovers. 2 Bell intercoolers. 2 Garrett 66.5mm turbos with 81 exducer. Tial 38 mm wastegates and Tial 60 mm blow off valve, etc.

Wheels and tires?

[online170]

Very cool stuff.

Is it a street/strip or pure race car?

If youre talking to nelson racing, i bet he'll have more to say about your fuel delivery than your cam :).

Ill be watching this one.

[carmantx]

Did you build the headers? Looks good. We would like some information on the header build if you wouldn't mind. Looking at doing some turbo stuff on Tyler's race car.

[td99]

looks good, its what im gonna do when i get my block. what fuel pump you going to run. i went with a magnafuel 500 for mine some of the belt driven pumps looked good now though.

[gs455david]

I have the Magna Fuel 500 pump with -12 line going to Magna Fuel regulator that is boost referencing. 20 gallon fuel cell. Street/strip car. Going to run on Billet Specialties wheels powder coated black, car green, ET Street Radial tire. Fab shop is making the headers/log manifolds.

[sean Buick 76]

Cool!

[sailbrd]

Do you plan on running power steering? I wish someone would come up with a tt solution for cars that use A/C and power steering. Has anyone ever though to mount the turbos right where the stock manifolds exit like the APS kits?

I built my own bracket that uses a Sweet remote reservoir pump. If you are not running a mechanical fuel pump (not advised with boost) you can mount them low and tight to the block. If you want air you are probably better off with single turbo. Then can run stock AC location.

[sailbrd]

Dang, another 1000 hp Buick. Pretty soon they will be as common as chevvies:laugh:

Good looking rear suspension setup. No poly bushings. yea

[Justa350]

Nice setup! Are you just dumping the wastegate outlets or are they going to snake back around to the exhaust? Your driver's side manifold looks very similar to what I ended up with because of the steering shaft.

Cool stuff! BIG power potential there!

[sailbrd]

I think my 1000 hp estimate is LOW!

[gs455david]

my goal is to drive in on an ET Street Radial, drop the air pressure, run an 8 in the quarter and drive back home. I know the block will probably split in two, but there are too many parts still needed for the TA block and I want to see if that thing lives before I plunk down 6k.

[DaWildcat]

my goal is to drive in on an ET Street Radial, drop the air pressure, run an 8 in the quarter and drive back home. I know the block will probably split in two, but there are too many parts still needed for the TA block and I want to see if that thing lives before I plunk down 6k.

Is it at least girdled and filled?

Devon

[gs455david]

nope. I am just going to roll the dice on this baby.

[DaWildcat]

Maybe you should at least put a diaper on it...if it splits in half at the track, the oil will ruin the day for every racer in that lane afterwards.

Awesome project and looking forward to updates.

Devon

[D-Con]

Cool beans. Glad to see you still have the bug and are building some more new and cool stuff. Are you avoiding EFI on-purpose?

[gs455david]

I have so much money wrapped up in this thing I just want to get it on the road. I am probably going to have 50k in this thing before paint, body and interior. Probably a FAST XFI when I can afford it.

[Nick A.]

Real nice setup your building there and I can understand the cost issue we wound up spending almost 45k on just the engine for our custom car. Its a Twin turbo T66s, they make some big steam!! Made 700hp with only like 9psi boost level and non intercooled. WIth a SBC

[D-Con]

I have so much money wrapped up in this thing I just want to get it on the road. I am probably going to have 50k in this thing before paint, body and interior. Probably a FAST XFI when I can afford it.

Did you see the setup that was for sale on here? A GREAT deal if Chris still has it. It was Kerry's, who passed-away; Kerry had plans for a similar engine combo to yours. I can't remember if it was for TE or SE heads.

[SDTempest]

More pics coming soon

[SDTempest]

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[SDTempest]

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[SDTempest]

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[SDTempest]

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[SDTempest]

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[SDTempest]

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[Justa350]

Great build! I wish I had those heads, they leave WAY more room for the plumbing than the regular style heads. Well, that and they certainly flow better. No love for the 350's though. :)

[gs455david]

I am more than satisfied at this point. manifolds going to machine shop to clean up flange and then the piping for the twin intercoolers will begin. Parachute probably going on this weekend as well. Wilwoods for the front coming next week and those are going on as well. Car should be done in 2 to 3 weeks and engine going to builder. Tranny be here next week as well. Car should be at track this year. Hoping for 5s in the 1/8 on radials.

[td99]

dont paint it David itd be sweet without being painted.

[Justa350]

Yeah, with the suspension it has, it should hook really hard on a narrow radial. Should be able to squirt off some sub-1.4 60' times. What size are your primary logs? Also, never heard on the wastagate outlet plans. Dumping the WG's or piping back to the DP's? Looks tough on the driver's side to tie back into the DP.

Kick ass project! Just a tip on the manifolds, stainless turbo headers tend to crack right where the pipes meet the flange at the head. If you weld a small triangular gusset from the flange to the top of each primary pipe, about 3/4" away from the flange, it makes a big improvement in strength at the flange, and could save you some headaches. Stainless doesn't tolerate the weight of the turbos and DP's with heat cycling so well.

Love the dice rolling approach. My style totally. My stock cast bottom end is still kicking after a $150 PAW rebuild kit and 10psi, 87 pump gas, no intercooler with 34* timing!

[gs455david]

Will be tied back into the downpipe in terms of the wastegates. I don't plan on revving it too high so I hope this thing holds together halfway decent.

[sean Buick 76]

Cool project! Seems to be MANY power adder Buicks coming out this spring!!!

[87GN@Tahoe]

AWESOME project. Let us know how the suspension rides on the street.

X2 on not doing any bodywork

[gs455david]

parachute mounted yesterday. Intercooler will be ordered end of week. 5 inch thick Precision or Bell good for 2000 cfm. Brakes will be done this coming week as should the downpipes and all the finish detail work. Will be boxing in the entire frame and throw some bracing in there to keep this thing stable at high speeds in quarter. Eighth mile track 6 miles from my house so that is a little convenient. Everything should fit under stock hood, but with a Stage 2 scoop. Having SD Tempest post some more pics. Wilwood master cylinder on as well. Looks like a real car now. I have been dying ever since I sold the supercharged GS.

[SDTempest]

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[SDTempest]

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[SDTempest]

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[SDTempest]

More progress! It's a shame the underside of this car will be hidden because it looks awesome!

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[SDTempest]

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[SDTempest]

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[SDTempest]

Well this thread definitely isn't lacking in pictures :beers2:

[SDTempest]

A couple of videos

Twins
<object width="640" height="385">


<embed src="http://www.youtube.com/v/3FHIed0H90w&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></object>


Rear suspension, frame reinforcement, and trans crossmember
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<embed src="http://www.youtube.com/v/TXvwTYwPW9Q&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></object>

[regalracer1987]

looks great im building a 455 twin turbo 87 regal maybe next summer we can meet up at one of the buick races

[sean Buick 76]

Great chassis!!!!!

[sailbrd]

Most of the build looks great. Not sure about the radiator mounting system though :laugh:

[SDTempest]

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[SDTempest]

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[offbrand Racing]

OH....I like it!!!

[sailbrd]

Will the hat fit under a stock hood? Will not on mine.

[Justa350]

Nice clean look! That's almost exactly how I did mine. Yours looks way prettier though. I might have to go back and polish the piping, that looks sweet.

[87GN@Tahoe]

where did yo uget the intercooler core from and how much did it run you, if I may ask.

[gs455david]

It is a Bell core and it was $900. It will support a touch over 2000hp.

[SDTempest]

Intercooler and mounts for intercooler and radiator

[SDTempest]

...

[DaWildcat]

Looking gorgeous...looking forward to more!!!

Devon

[chuck56]

And? Is the car off to paint or what?

[trisheildfan]

:kodak:Thats some awfully nice fab work.....
Great looking welds.....super nice work:TU:
Congrats!

[gs455david]

motor being built and getting interior parts together at this point. Paint will be last.

[offbrand Racing]

David,

Who is doing the short block?

Jim

[gs455david]

GES Engineering did my last two engines and they lasted a total of 15 years with no problems. Looked into possibly using some board members, but they never got back to me with quotes. Probably for the best.

[offbrand Racing]

I would say that your are correct. Sounds like your group has your stuff dialed in!

[Turbo455]

Niiiiice!

[Bobb Makley]

looks similiar to what we did.

http://i532.photobucket.com/albums/ee330/bluestg2/Picture142-1.jpg

[jay3000]

Anything happen lately.. I understand how things just stop for a while sometimes.

[offbrand Racing]

Updates?

[jay3000]

Breaker 19.. Anyone out there??

[gs455david]

Car should be on the road next month. My original block for the build was bad. Got another one. The final assembly on motor is occurring right now and then off to San Diego Auto Fab for final assembly. That long block ran me 17k so that wasn't exactly easy on the wallet. Got somewhere in the neighborhood of 45-50k in this car and it still needs interior and paint. Should be posting some pics and video within the next month. David

[jay3000]

Good news.. Geeze I though maybe you got hit by an airplane or something..

[SDTempest]

Updates...

Paint still needs to be cut and buffed and the wiring is still going together. Should be up and running next week :beers2:

The lighting was bad so the pics came out like crap.

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[sailbrd]

What? No AC or power steering. What kind of luxury car are you building? :laugh:

[gs455david]

I know. It killed me to pull off both, but when I weighed how often it gets too hot or cold in San Diego and where the hell I was going to put everything with stock ac and power steering in place, that is when a reality check came in. It still has all steel panels and front and back seats though so it is kind of like a daily driver.

[sean Buick 76]

I know. It killed me to pull off both, but when I weighed how often it gets too hot or cold in San Diego and where the hell I was going to put everything with stock ac and power steering in place, that is when a reality check came in. It still has all steel panels and front and back seats though so it is kind of like a daily driver.

Cool car!!!:3gears:

[66larkgs]

Love to see a picture of the car with the hood down. I was thinking of cutting my hood like that to fit my ev carb hat and csu carb.
Paul
66larkgs
Turbo 401 nailhead

[gs455david]

video of it running.
http://www.youtube.com/watch?v=Yjntsi3qgd4

[dboz]

WOW, you are nuts!!! AWESOME work.

[GSX Tribute]

That is awesome! great color too.

[moshen]

Once you get to this level , a 17k long block doesn't sound so bad, because an all aluminum Dart BBC would probably be close to that .

[SDTempest]

Once you get to this level , a 17k long block doesn't sound so bad, because an all aluminum Dart BBC would probably be close to that .

17K STOCK BLOCK longblock. Big difference. In my opinion T/A is really missing the mark by not releasing their block in iron. Casting it in aluminum is not necessary for the average enthusiast.

$6000 in aluminum = limited buyers and market
$3350 in iron = lots of sales to the serious Buick racer

[moshen]

17K STOCK BLOCK longblock. Big difference. In my opinion T/A is really missing the mark by not releasing their block in iron. Casting it in aluminum is not necessary for the average enthusiast.

$6000 in aluminum = limited buyers and market
$3350 in iron = lots of sales to the serious Buick racer

Dart aluminum BBC block is 5K , and I hear you get what you pay for compared to the cheaper made World Products aluminum BBC. I see what you are saying, but if given the option, and I had worked my way to this higher level, I would pay the extra $2650 for the lighter weight repairable aluminum piece anyways. Its all a day dream for me though.

[SDTempest]

I got a couple of pics today.

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[offbrand Racing]

Updates? I see on the py board you guys ran into some trouble. Very strange stuff. Interested in see what cause it.

Hope the fix is an easy one! Regards

[boe]

What was your stainless source to build the exhaust manifolds?

[boe]

ttt