Quote:
Originally Posted by MartinLe
So, even if my rail pressure fluctuates, as long as the IPW's are in the 5's, I can not be concerned?
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Rail pressure is going to fluctuate *a little*. It’s driven by cam pulses so if you command 2175, you’ll see maybe 2050-2300 or so as it bounces around. It should bounce right back very quickly to what is commanded though. A number like 1800 is unacceptable. If it’s low for a good part of the run then you have an issue, and I find that if I get too greedy the HPFP will literally drop off like a rock and IPWs shoot way up. If you’re under 6.0ms I wouldn’t be nervous. Generally speaking, what you command for low side and HPFP pressures should be there within 5-10%.
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, ATI 8L90, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors & BB HPFP, TooHighPSI/Katech port injection, 15” conversion 1066 WHP STD/1027 SAE, 9.10@152.5 (new times coming)
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