HELP with setup
BIG HP SINGLE TURBO CORVETTE questions So im confused with turbo sizing let me explain my setup and goals and limitations...
the car is a 98 corvette a4
the motor will be a 366ci
heads that flow over 370cfm
built a4
2.73 gears
3500-4000 multi disk stall
the hot side is from hinson motorsport's single turbo kit.
which limits me to t4 flange turbo and 3inch downpipe.
and also limits the size of the turbo to the physical dimensions of a T76 or T78
my goal is for the car to have 800hp daily driven and 1000hp on race gas.
now the issue is what turbo would get me there with the above description and limitations?
thanx for the help in advance
the car is a 98 corvette a4
the motor will be a 366ci
heads that flow over 370cfm
built a4
2.73 gears
3500-4000 multi disk stall
the hot side is from hinson motorsport's single turbo kit.
which limits me to t4 flange turbo and 3inch downpipe.
and also limits the size of the turbo to the physical dimensions of a T76 or T78
my goal is for the car to have 800hp daily driven and 1000hp on race gas.
now the issue is what turbo would get me there with the above description and limitations?
thanx for the help in advance
Last edited by dasorcha21; Nov 7, 2008 at 04:40 PM.
You're almost going to need a T6 flange turbo to get those numbers with 336 cubic inches of fury. Generally, running a T4 and trying to get those numbers will place you way off the compressor map. I had heard about some sort of "compact" setup, but I'm not sure if it will get you 1000rwhp, even on race gas.
Borg warner (Airwerks) also makes a good unit for that kind of power...
The ST80, but I think with a T4, you're going to still have some issues with back pressure vs a T6 flange.
The ST80, but I think with a T4, you're going to still have some issues with back pressure vs a T6 flange.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Eeesh, that's rough. That is one tight squeeze in there. I personally wouldn't do it, but you could always reduce from a 4" DP to 3" since you're not going to be running it at max all the time, but I honestly believe you'll lose some efficiency with it being choked.
hence the question of with what limitations i have to work with (t4 flange, 3inch downpipe, hood clearance) would i even be close to touching 800hp?
im not to good at looking at compressor maps and figuring out if a turbo is gonna choke etc... thats why i would like people who have experience or are experts at this to give me a little bit of help.
im not to good at looking at compressor maps and figuring out if a turbo is gonna choke etc... thats why i would like people who have experience or are experts at this to give me a little bit of help.
I think what you have now will take you a ways. Looks good, no pinches, mandrel bent, and 3". I'd try and find a 76GTS and see how it works out, what kind of boost do you WANT to run, and what kind of rpm does the motor see?