Hey bumpstart,bumpstart wrote:ok here you go
i stole these and trimmed it up
but its backing up what i was trying to point out above
For Dead-Head type regulators:
Multiply maximum horsepower by .23 to calculate minimum pump size in "free flow" GPH.
Example: 400 HP x .23 = 91 GPH "free flow"
For Return-Style regulators:
Multiply maximum horsepower by .17 to calculate minimum pump size in "free flow" GPH.
Example: 400 HP x .17 = 68 GPH "free flow"
dead head ---
p1 > p2
the picture in posts above mine is actually this set up, but hybrid with a restricted bleed going to tank from the carb supply line
( further de-rating the flow coming from the reg )
bypass set up
P1 seen by pump is lower ( the FPR set point ) flow is higher
provided the line diameter supports that flow at that pressure
my pic is a variation of this, though a dead head was used in reverse
( all we had at the time )
and the return line is in fact a little small compared to supply
( still working with minimum 4.5 psi )
the dual FPR set up that will let the carb see a low set dead head, yet pump see a bypass
( yet still has a minor inlet restriction )
Do you still have the pictures for the fuel system utilising two regulators for a true bypass setup for a 12a bridge?
I'm still a little confused as to where the regulators need to be positioned in the setup.
Also, where would you recommend mounting a carter gold/black fuel pump in a gen 1 rx7, and which pump is best suited?