how much boost
- Thread starter wooooof
- Start date
Put the alky on and get it running right with the stock turbo first. I see you started another thread where you need to get the car running right first, and that comes before alky or a turbo.
Enough to drive over the crank.
hotairgnx548
hotairgnx548
- Joined
- Apr 7, 2010
what ever it takes. See Ya! John
I didn't think a stocker would generate that much pressure. Hmm.
bone stock motor she was a real trans eater.i did it on a stock turbo a couple of years ago but it was wayyyyyyyy past its efficiency lol and it will not last long like that! no reason to go past the 23 mark on a stocker
Close but not quite. With the waste gate completely closed off the most the stock turbo would push on my car was 27psi but that was only in first gear then would fade back down to 24-25psi in 2nd and 3rd. In this configuration it would "probably" run 11.7's on the bone stock engine with 87 octane and meth inj. but I quickly bought a precision 5831 and was pushing it to 35psi and 87oct/meth. I sold the car last weekend and never got a chance to run it and now I will be picking up a TT Mustang (700hp on 93oct @ 17psi) next weekend in Dallas TX.
ks
TT/Ameasap
The White Blur
- Joined
- Jan 31, 2002
I pushed the stock turbo to 30psi and alky. No difference in power from 24-25psi on up. 26-27psi on a 49 turbo and same exact combo netted 11.3 in the 1/4. Bolted on a 61 at 26-27psi and ran 11.4 with converter unlucked and half tuned. All my tuning back then was a scanmaster and plug reading.
There is a point where a stock head can only flow so much, with the right turbo in its efficiency range, max power can be achieved. Seems like 11.0 is roughly where stock motors are limited with good tuning.
There is a point where a stock head can only flow so much, with the right turbo in its efficiency range, max power can be achieved. Seems like 11.0 is roughly where stock motors are limited with good tuning.
It will, but no volume. Pressure without volume is overworking the turbo and creating immense charge air heat. The stocked can't do at 30psi what a larger turbo can at 15-20.
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psycho6cyl
Ponies Are For Lil Girls
- Joined
- Feb 11, 2005
a turbo will put out what ever you want it to for the most part but where it is efficient is another thing. Also the turbo psi is limited w using straight pump gas. some can push 19 on pump gas w nothing else and some can't go past 16lbs. it all really depends on your car and the tune. so even if you went bigger turbo your psi will be limited if using pump gas. obviously get the car running good w supporting mods fuel pump hot wire etc then worry about going bigger. If you have a good foundation start w alky and once you get tired of stock turbo then upgrade..
