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Max PSI??

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DSMinn0vati0ns

15+ Year Contributor
193
2
Sep 26, 2004
Budd Lake, New Jersey
hey everyone, i just installed my RS49T 50 trim with 550cc injectors and a FPR. I was wondering what would be the max amount of psi i would be able to run with stock internals?

Matt-
 
hmmm... well I too have 550 injectors and they are 102% maxed at 20 psi (when running race fuel). I have a 16g too so I don't know man, it seems to me the injectors are holding u back. I am thinking about getting bigger injectors.
 
DSMinn0vati0ns said:
hey everyone, i just installed my RS49T 50 trim with 550cc injectors and a FPR. I was wondering what would be the max amount of psi i would be able to run with stock internals?

Matt-

Get a logger and then you can tell us what the "max amount of psi" you would be able to run. Also unless your dyno sheet is ~400whp and you don't beat your enigine you should be ok. Many have 400hp on stock internals and some beyond. Only one way to tell, its not a set figure. :thumb:
 
yeah i understand that.. i just dont wanna go to high and raise my head and all that.. but.. thanks i guess
 
DSMinn0vati0ns said:
hey everyone, i just installed my RS49T 50 trim with 550cc injectors and a FPR. I was wondering what would be the max amount of psi i would be able to run with stock internals?

Matt-


I'd suggest putting in a real fuel pump. If you got the FPR already get a 255 and be done with it.
 
ddavisaf said:
Don't turn up the boost until you get a logger. Keep it at 15 psi for now.

Agreed, sorry if you didnt' liek what I had to say, but you'll know when you've gone too far. just make adjustments at like 1-2 psi at a time starting at 15psi.
your logger will tell you when you've gone too far.

Without any kind of tuning I doutb you'll get much farther than 18psi without seeing some knock, which is a fairly safe pressure level as far as your stock block is concerned.
 
right now im at 17 psi with a pretty good tune.. i tuned with my friends wideband and my safc.. and everything worked out good so far
 
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