Quote:
Originally Posted by Kerry
Would an lt1 hpfp with a bigger cam fuel lobe get close to the out put of an lt4 pump with a stock fuel lobe?
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Problem there is the LT1 HPFP typically operates at 2175 psi whereas the LT4 HPFP runs 2900 psi. So you’d need bigger injectors to compensate for the lower pressure. And if you have larger injectors then you’d want the LPE pump anyway to get the most out of them. I only run 2175 psi but have the LT4+52% injectors & LPE BB HPFP… always a balancing act. 
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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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