injectors & fpr j31setup...
10-05-2006, 09:25 AM
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injectors & fpr j31setup...
working on putting together a j31 setup and from searching the forum
a) can i just run my stock ATW injectors with the 5bar fpr
or
b) is it better to run ev12-style tt180s or 310cc "redtops" (ev12?) and if so at what bar, since the flow rate is different between them
a) can i just run my stock ATW injectors with the 5bar fpr
or
b) is it better to run ev12-style tt180s or 310cc "redtops" (ev12?) and if so at what bar, since the flow rate is different between them
10-05-2006, 10:48 AM
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I forgot what psi I'm running right now, but around or less than 3bar
I lowered it to combat my rich condition. I have a strange feeling my n75 needs replacing. Engine isn't too smooth right now and the boost is all over the board and not really holding. I've tested for leaks.
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10-05-2006, 02:15 PM
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the TT225's worked best for me. You can get away with the stock injectors but
if you watch the duty cycle on the injectors and you exceed 90%, then you need to get better injectors. I tried the TT180 but it just didn't work out. I ran lean a bunch of times on the dyno. I tried the redtops but they just dumped too much fuel with the 5bar. It might be better handled with an Adjustable FPR, but with the 5bar, it was damn near too much. The TT225's were just about right. Maybe a hair too much, but it running a little rich is ok in my book.