Upgraded to bigger injectors, do I need an fpr?
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Partout Performance
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Upgraded to bigger injectors, do I need an fpr?
Just installed 4 750cc injectors and my buddy told me I need a fuel pressure regulator.
For 12psi on stock turbo, tuning via an SAFC and an Innovate LM-1, with a Walbro 255, do I need an fpr?
I searched and just found people talking about aftermarket installations, not when you actually need one...
Car has not been started yet.
For 12psi on stock turbo, tuning via an SAFC and an Innovate LM-1, with a Walbro 255, do I need an fpr?
I searched and just found people talking about aftermarket installations, not when you actually need one...
Car has not been started yet.
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By the way, I have done some reading and to clarify.
My car now has 4 x 750cc injectors and it started right up on the STOCK ECU.
It hunted for an idle but when I dropped the fuel about 20% (via an SAFC) it holds a ROCK SOLID 800 rpm idle!
The only problem is, I hear a loud hissing now...
I think I have a vacuum leak... Wouldn't my idle bounce if I had a leak? I'm boosting half a psi lower than usual...
My car now has 4 x 750cc injectors and it started right up on the STOCK ECU.
It hunted for an idle but when I dropped the fuel about 20% (via an SAFC) it holds a ROCK SOLID 800 rpm idle!
The only problem is, I hear a loud hissing now...
I think I have a vacuum leak... Wouldn't my idle bounce if I had a leak? I'm boosting half a psi lower than usual...
#5
destroy, rebuild, repeat
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the only reason you would need a different FPR is if your fuel pump outflowed it. In that case your fuel pressure would be too high. It has nothing to do with size of you injectors. Im running 750cc and 1600cc injectors on the stock FPR, lines, and rails with a walbro 255 no problems
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