Quote:
Originally Posted by shinysun
Is it Ok to use 2900PSI with LPE big bore? The homepage is saying "Never exceed 15 Mpa", 2150psi.
|
Quote:
Originally Posted by Chrome383Z
The LT1 pump is rated for 2175 I believe and the LPE is based on it. I’m not exactly sure what all they do but I believe it’s bored out and maybe machined deeper for increased stroke. Folks on here have ran them at higher pressures and I haven’t read of any failures but always a chance of pushing things closer to that edge.
However I haven’t seen anyone get good results cranking the pressure up, flow drops off. The LPE pump flows 10% more at 2150psi then the LT4 at 2900psi. So ideally you’ll want to run at the rated pressure.
Just have to make sure you have enough injector at the lower pressure if that makes sense. Example an LT4 injector at 2900 psi may flow similar to a +30 at 2150 psi. That’s why I bought +30 with my LPE pump. Figure I’m going to need that overhead at some point.
I’ve seen some folks run 2400-2500 psi to help injectors that are too small get more flow, but you’ll sacrifice some flow from the HPFP. Trade off I guess.
|
Well said. 
You really need +30 injectors at a minimum, and preferably +52/+65 injectors to take full advantage of the LPE BB HPFP.
__________________
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)
|