Quote:
Originally Posted by shinysun
Is it Ok to use 2900PSI with LPE big bore? The homepage is saying "Never exceed 15 Mpa", 2150psi.
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I have ran mine @ 2900psi for years with LT4 injectors with no issues. When I moved to XDI +30's I dropped back to 2175psi(LT1) to take strain off the HPFP and Low side. We also ran the C7Z at the same psi until installing the +65's.
So it comes down to what parts are being used.
LT4 injectors are based around 2900psi. So the LPE hpfp really needs turned up for them. Not sure how they would act with less pressure but my guess is it would be a waste of time. You really need larger injectors to run lower psi.
FIC +30 gen 1's will run @ 2900 psi. The gen 2's will misfire. At least that has been my experience.
XDI +30's will handle 2900 psi. I ran them @ both LT1 and LT4 pressures with no issues.
XDI +65's want no more then 2600 psi based on the spec sheet. Not sure if they will handle more psi without misfiring or not.