STS And 408
STS And 408 I have an all forged 408 with 9 to 1 compression and meth injection,60lb injectors, 255 in the tank and a t-rex bap.I have a STS with a T-70 turbo.Was wondering if it would be safe to 18lb of boost and what kind of overall timeing I should run.Any responce would be appreciated.
Wow, 18# in a 408 is a lot of turbo, I don't think that t70 would be efficient at that high in that large of displacement, to be honest. I thought I would be pushing it at 15# on a 347 or 383. For that high of boost, You'll def need bigger than 60# injectors, and get a large intercooler like TRT recommended, better safe than sorry. You should be able to run at least 16* timing with a good FMIC and meth.
I was kind of wondering about the T-70 also but that is what TRT recomended for my setup for street use.If I can make 550 to 600 hp I would be happy with that for what I use the car for.
Dude, 550-600 rwhp on a 408 is probably one of the easiest things ever... You sure as hell don't need 18# with the 408 to get there, I guarantee you that. Run the T70 at even 10# and i bet you'll reach your goal.
I agree 18 psi is not needed for 500-600+. I have a 422 with a sts and 76 turbo Hell Im shooting for 600+ Should be easy. I dont want a peak power band and a ton of boost. Billy got me rethinking my injectors I to have 60# Hummmmm?
Trending Topics
The efficency of your 70 canot hang with that 408.... and you are starving her for fuel. Your setup is the same as I was considering... went with a 370 instead... I will still be pushing a larger turbo. I would reccomend 75-83 lb injectors for a FI 408 with meth in a STS setup.
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
Originally Posted by vandal0-0
I was kind of wondering about the T-70 also but that is what TRT recomended for my setup for street use.If I can make 550 to 600 hp I would be happy with that for what I use the car for.
LOL Sorry I missed that.... if you are shooting for 550-600 only then it will work fine.. hell prob at 5lbs of boost with a good 408. Billy gave you exactly what you asked for in that setup it sounds like... you will make that HP all day on pump gas and low PSI.
Hell have fun and up the PSI to 8-9lbs... add a FMIC... you will love your on tap 650+. Billy builds good setups... IMHO
Hell have fun and up the PSI to 8-9lbs... add a FMIC... you will love your on tap 650+. Billy builds good setups... IMHO
Good luck with your build jared!! So you guys think a 422 with 60# will work at 10-15 psi or do I need some bigger ones. I have been told the 60# hold up to 700+ hp If not then where do I get 75# ??????
I agree Longrange4u,Billy has been a ton of help and a real stand up guy.I will recomend everyone to go to TRT Turbo for there STS kits.I appreciate all the replies to my question.