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Old 01-18-2024, 09:41 AM   #19
JANNETTYRACING

 
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Drives: BLUE CAMARO ZL1 1LE M6
Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,453
Quote:
Originally Posted by Megahurtz View Post
On a side note Ted. Have you found that increasing the solenoid open time on LT4 cars benefits volume/pressure? Since the LPE is based on an LT1 pump and the LT1 OEM config has longer solenoid opening times than the LT4 config, I typically increase the values on LT4 cars. Pretty sure I was able to see more flow this way but no one really talks about this or if it's bad for the pump or engine at higher RPM to raise these values. Curious if you have any knowledge to share here.
Both LT1 and LT4 have 130 Degrees max.

I have seen some trucks listed at 132 degrees but I don't know if that is a math problem in the software template.

It is obviously being used to fill the chamber as low side pressure drops we see this number increase and vise versa.

I raise inlet pressure and the duration goes down.

Again we are dealing with Positive displacement, repeat it in your head Positive displacement, Hard limited, when it is full, it is full.

We can only reduce it's displacement by limiting the opening time or limiting the inlet pressure or both.

Ted.
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