Best way to run FPR?
Best way to run FPR? What's the best way to run the Fuel Pressure Regulator?
I've switching out the stock rails, etc. Is it better to run fuel feed into regulator, then hit the back of both rails or hit both rails FIRST and regulator after that ? Thought about running it the first way and capping the front off the rails off.
I've switching out the stock rails, etc. Is it better to run fuel feed into regulator, then hit the back of both rails or hit both rails FIRST and regulator after that ? Thought about running it the first way and capping the front off the rails off.
What's the best way to run the Fuel Pressure Regulator? I've switching out the stock rails, etc. Is it better to run fuel feed into regulator, then hit the back of both rails or hit both rails FIRST and regulator after that ? Thought about running it the first way and capping the front off the rails off.
Best way to set it up IMO is to have the pump feeding both rails (T) and then (T) them back into the regulator after the rails or use the regulator as your (T)
Last edited by oscs; Nov 17, 2014 at 09:33 AM.
The general thought is that you want the regulator to compensate for the pressure loss across the rails. By placing it after the rails, you should have no less than what you have it set at at all times. Both ways have been shown to work though
I thought this out to, since I was plumbing mine and ordering fittings
some said to tee into one end of the rails, tee out the other end to the reg
some said just go in one rail, cross over on the other end, and back out to the reg-it seemed to me you could starve the far side injs. by feeding one side first, but I guess there's enough vol. it doesn't happen
If you look at a Nascar engine, they just go in one end, cross over, then out the other end to a reg-so that's what I settled on, lol
some said to tee into one end of the rails, tee out the other end to the reg
some said just go in one rail, cross over on the other end, and back out to the reg-it seemed to me you could starve the far side injs. by feeding one side first, but I guess there's enough vol. it doesn't happen
If you look at a Nascar engine, they just go in one end, cross over, then out the other end to a reg-so that's what I settled on, lol
Launching!
Joined: Jun 2013
Posts: 275
Likes: 0
From: New Orleans
I think it depends on rail size and crossover line. If I was running a real small rail and crossover line I would probably feed into both rails and then out from both into regulator. But if you have a large high capacity rail and crossover. I will feel comfortable just going into one across to other and the regulator.
Just my thoughts
Kerry
Just my thoughts
Kerry
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TECH Resident
Joined: Jun 2009
Posts: 856
Likes: 2
From: Elizabeth City NC
Cliff notes yes you can do it, but there is adverse affects and its not hard to hook it up post rails and do it properly.
