Fuel system configuration
 

For those of you who have upgraded your fuel system which configuration did you use? Any insights to the advantages or disadvantages of either system appreciated.

My vote goes to configuration b or a parrallel setup. that way neither your primaries or secondaries feel a drop in pressure form each other.

Would a closed pressurized system see a difference with a good fuel pressure regulator?

I feel that B is a better setup as well, think of the main fuel line as a main feed line, and as the injectors pulls it is like having a FPR bleeding off excess pressure, therefore the further down the main line you go and the more points of release the higher the variance of pressure will be as you travel down the line. Setup b has a much better chance of supplying equal pressure to all injectors 2ndary as well as primary.
Though with the right flow area in the lines and rails, and a pump that can keep up it wouldn’t be an issue if you really wanted to go with setup A.

here is a pic of how i ran it.
https://www.rx7club.com/attachment.p...chmentid=76642

My setup is pretty basic: 850s/1300s, supra tt pump. Factory rails, lines, and fpr.

Has been good to over 400rwhp, and has never given me any problems :)

rich is gay and his car is slow.......i did something similar to "b" in my car except with dual pumps, one for each rail, which run into a single fpr and return.....if one pump goes out, which happened, the other one will supply enough for about 15 psi of boost, after that pressure drops off dramatically, i really don't run much more than about 13 psi as this is a road course car....the most boost it has seen is 23 lbs and that was only once....we dynoed 409 @ 13 psi so that is more than plenty......

Heh, but whose is running right now? Seems like someone is making 0rwhp at 0psi right now :bigthumb:

--Riko-sauve

what turbo are you making 409 at 13psi with and who tuned it?
what did it make at 23!
I have setup A with 1600s and 850s and a boshe fp and aeromotive fpr
who wants to help me make it into B?? help!

rich is comedian, who has job and who make 0$ right now.....now who laughs....
right now it is a innovative t-66.....i have 1600 secondary with 720 primary with all earls fittings and braided stainless lines....which was a pain in the ass....

riko haveajobo?

oh and you are still gay rich, ghostrider, your rear is full.....over....