Boost on stock motor...
Boost on stock motor... just like the title...i have a T-70 and am doing a rear mount myself...i have a stock motor...only thing i have are L/T headers (99 ls1 z28 camaro a4)...i am gonna do 6lbs of boost and was just wondering if that is good or if i could get away with 8lbs...i dont want to much cause i want it to last for a while till i can build the motor...but i also dont want so little that it wasnt even worth the time and money...thanks guys
6 pounds of boost will get you over 400 rwhp (probably around 425 rwhp or so). 8 psi is probably gonna put you in the neighborhood of 500 rwhp. With a good tune and 93-94 octane you can run 8 psi but if you want to play it safe either got with some meth injection or keep the boost at 6 psi.
you dont want headers if you're doing a rearmount turbo...
and yea, you can push 8lbs into a stock LS1 without extreme risk. most stock motor kits push between 8 to 10psi in there....
and yea, you can push 8lbs into a stock LS1 without extreme risk. most stock motor kits push between 8 to 10psi in there....
Originally Posted by 99Zcamaro
Thanks guys...and yea i heard about the headers with a rear mount...dont you like lose a lb or two of boost or something like that...and i thought about meth also...
Yea people seem to be having the best results using wrapped stock/shorties/ls6 (c5 z06) manifolds. Meth is a good option if your going to be pushing 8+ psi. Not a complete necessity but if your not going to run a front mount intercooler then meth would serve you well IMO.
FMIC will get you upto 8psi safely. Guys running meth have run 10psi safely with a conservative tune.
Make sure you have the fueling components up to par and get a good tune...you'll be fine.
Make sure you have the fueling components up to par and get a good tune...you'll be fine.
I just got a T-70 rear mount with a FMIC myself and from what I was told, it should be fine as long as it gets plenty of fuel. The meth. kit is insurance and I would definately loose the LT and go back to stock manifolds. If you wrap the exhaust all the way back to the turbo you will get faster spool.
Last edited by GhoSStrider; Jan 25, 2007 at 12:22 AM.
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Well i can tell you that 633 is not safe on a stock block I am using the D1SC and it was only making 9psi on the largest pulley I could use and it was using a very safe tune but the stock inards just couldnt take it.
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i run 5.5psi because i have a leak in my header, but its a "good leak" if i didnt have it, my bottom end would go boom. if i ran the full 7.5psi, i would be in the neighboorhood of 540+rwhp and i dont think thats safe for a stock bottom end, so i kept it at where she is now. i wouldnt really worry about the # of psi, just worry about the hp she makes. its only a #, i only make 5.5psi and i make just over 500rwhp.
GET THE FMIC, COMPLETELY WORTH IT IN EVERY WAY POSSIBLE, AND IT LOOKS
good luck
GET THE FMIC, COMPLETELY WORTH IT IN EVERY WAY POSSIBLE, AND IT LOOKS
good luck
Last edited by 99Z28LS1; Jan 25, 2007 at 09:25 AM.