Well our Buick 455 project finally got officially underway today with the arrival of 1 large hairdryer. It's a new TV8101 with the 1.39 AR turbine. Also on the way custom cam motion flat tappet stick. The build is gonna prolly take months due to financial constraints but the turbo is a start. I'll keep this thread alive as more parts arrive and the build begins but for now all u get is turbo pics.
Did a search and confirmed that thing is off a diesel. I knew they didn't make them that big for a car. Good luck and try not to suck any small children into that thing p . Car Craft (July) just had a supercharged 455 that ran in the 10s-with the bypass valve stuck open! It might have ran in the 9 second range otherwise.
It's 1.39A/R on the turbine. Don't worry about our spool time people run these turbo's on small blocks and make boost by 3200rpm. It'll work just fine on the BBB. It is off of a Detroit Diesel 8 92, but it is relatively small by race standards. Many racers use nothing smaller than 100mm turbo's these days.
I have an image of birds flying overhead being sucked into it, loose articles of clothing, foreign objects etc. :grin: I think the BB would be fine as well as far as spool-up. Beides, even if it kicks in at 2800 that would be perfect. It picks up where the engine leaves off torque wise.
Supercharged Buick Patrick, Is the new CarCraft on the news stand with my supercharged Buick. I haven't received mine in the mail yet and am dying to see how it turned out. How did it look? Call me at 760-440-9966 anytime. David
The spooling will be maybe even too good. this will be a fairly healthy engine and with a transbrake it should get the job done :laugh:
Still haven't addressed the boost issue yet. I brought it back and it ran exactly the same. I am too busy at work right now. I plan on taking care of it within the next few weeks. It should run insane as soon as I boost is made.
I doubt that, but if you are thinking racing not street driving here, a T-brake, and like a 75 shot just off of launch will certianly help. The shear size of that turbo makes it slow spooling, when I get home tonight I'll run a 455 through my turbocalc program and see what it says for a single on a 455. You aren't running any stroke or bore increase are you?
I guess we will se but we are very confident we have done our homework, but thanks for your positive feedback.
Just as a comparison here's 4 small block guys using the same turbo. 358 SBC boost starts 3000rpm, 10psi 4600rpm 408 SBF boost starts 3500, 20psi at 5000rpm 355 SBC boost starts at 3500rpm 393SBF boost at 3500, 10 psi at 4500rpm So yes on a street car not seeing boost till 3500rpm may seem like lag but this project is being built with the racetrack in mind. With the added cubes, the killer Stage 3 heads we have and leaving on the transbrake, spool time will be the least of our worries :3gears:
I never understand why people list booste from a turbo at RPM, booste can come on at any rpm based upon engine load. Grand National guys leave the line at like 2500rpm at about 10psi if the brakes will hold it. So you're building a racecar, well then its probably doing alright for size then to keep from choking the top end. I still think spool time is going to be a worry depending on what kind of tree you run. You still have to spool the car on the line and that means you must stage, set the T-brake then get the engine revs (more importantly the exhauste mass flow) up high enough to get the turbo to start building booste. If you are on a Pro-Tree... good luck fitting all of that in. What kind of stall are you going to be running on the converter?
And I never understand why people pick at details when their trying to prove how smart they are. :error: Those examples were based off of either dyno pulls or transbrake launches under WOT. So yes they can be used as examples because the motors are seeing load. The turbo was chosen for the car with help from Dave @ Majestic turbo who has countless years in the industry. As I'm sure u already know u can also spool the turbo when your prestaged by setting the 2-step low(3000rpm), pulling out lots of timing (to let fuel burn in the headers) matt the gas and the brake and then as boost builds, bump the brakes to bump into the last beam. It does help to have great brakes of course. When you finally design YOUR turbo kit for a Buick I'd love to help critique it for u aswell. :moonu:
My appologies for the harshness, its just that everytime I see someone flaunting a turbo off of a bus or a semi its because they followed bigger is better logic and junkyard scrounged. I see that you have done your homework on your selection of the turbo and you well understand the limitations of using such a large one. I never liked the 2-step approach as it does all sorts of weird things to you EGTs and thermal expansion stuff, but its a race car and they consume items. I also don't like T-brakes though aknowldge there use and need in racing. I have a very streetable mentality and it shows in my quirks for prefferences in components and technology I like. What I don't like about people quoting booste at rpm is that its missleading and people begin to think of it like a supercharger when booste is rpm dependent, even on the CSc's. Turbo's work off of the thermodynamics of the exhauste stream, both mass flow and the thermal components. With sufficient load you can get very high booste levels at low rpms. I am working on a turbo Buick right now, true it is base off of an existing LC2 Intercooled Turbo6 but I am doing my own chassis integration, intercooling, and most critically computer controls for the EFI. I also have consulted with a turbo expert for my turbo and am going with a Garrett GT40R turbo since I did mandate that I wanted ballbearings, water cooling, and dual GT wheels vs the older T wheels. I look forward to seeing how well this works as the next project I'd like to tackle is a twin turbo 455 with Edlebrock heads, 76 455 block, run by LS1 electronics backed by a 4L80E in a 69 Riv.
Hey man, saw your post about this on t/m's. Don't sweat it, your on the right track I think. Plenty of info there for you to use. When I started my turbo project I was steered directly there to gain info and knowledge. And, I am looking forward to your results with the turbo you have. I have been thinking about another little project with this one too :Brow: . I'll send you a pm I have a couple questions for you if thats ok ??
