max boost on bone stock motor???
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hey all i just got my sts kit with the gt-67 upgrade, i have 36.5 injectors stock fuel pump, and will soon have a bar and plate fmic, was wondering whats the most boost i can throw at my motor with these mods safeley? and what will i have to do in order to make 10lbs of boost....
thanks in advance!
Blake
thanks in advance!
Blake
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depends on yout altitude. here colorado ive heard that a 10:1 motor can go 15#'s. but otherwise a stock ls1 can handle about 8#'s. if you want 10#'s get meth injection or switch over using e-85/ ethanol
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Originally Posted by mycar2fast
so if i upped my boost to eight it would b fine??? im in michigan so whats that tell you as far as altitude??
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Originally Posted by ChevyChad
that is a good approach also. But you'd still need meth, or at least some nitrous to assist with the intake velocity factors...
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I'd say that 8psi can be had with a FMIC and a good tune... You can put the 6.0 heads on with some good springs (patriot are always a good option) for a safer barrier.. Anything over please go with some meth and don't cheap out on it... The best meth kit (which you'll use after the engine build) is still way cheaper than pulling the engine for a forged swap... especially when you don't have the money for that...
#16
8 sec potential, 12 sec slip
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Originally Posted by FieroZ34
It's a horrible approach, but that's my point. Another ignorant fool who thinks boost means everything.
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#17
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Originally Posted by ChevyChad
geez, I know. I was just trying to give this guy a hard time because he made the same thread 19,562 other people have made. Okay, I guess I'm only amusing myself here... ![Lurk](https://ls1tech.com/forums/images/smilies3/lurk.gif)
![Lurk](https://ls1tech.com/forums/images/smilies3/lurk.gif)
But dude, if 45 psi and a smaller throttle body works so well, how come you're only in the 12s?
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![Angel](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_angel.gif)
To original poster... um, you need to do a LOT of research. Safe boost means proper tuning, and wideband O2 /egt tuning on the dyno means a lot more than "8 psi with a wiener wagger" vs "10 psi with a wiener wagger AND crack"
Also keep in mind that if you're doing this on a street car, pump gas varies GREATLY in it's quality and purity, and you won't be tuning for the weather... so conservative is the key.
Short answer... with a GOOD front mount intercooler, and good tuning, 8psi should be safe, if tuned carefully and conservatively.
You wanna make big power... start with the short block, and build it for the style you'll run, IE low compression / high boost, nitrous, NA. The ideal motor for each approach differs.
#18
8 sec potential, 12 sec slip
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Originally Posted by Boodyrider
But dude, if 45 psi and a smaller throttle body works so well, how come you're only in the 12s?
...
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...
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