FPR needed on a carb?

[DrkZide]

As the weather has changed I was retuning my Holly carb when I noticed a small fuel leak coming from the hose connecting to the Spectre FPR the PO has installed. I was going to buy a clear fuel filter and some new fuel hose and that's when I noticed while browsing through photos that other people don't seem to have a FPR installed before the carb.

I've noticed the Spectre getting some pretty bad reviews, can anybody recommend a better FPR?

I have it set to 5 but what is the recommended setting/pressure?

Is a FPR on a carb even necessary?

Thanks

 

[djtejas]

I use this one from Summit..you have to install a separate gauge.

The Spectre ones are crap...

 

[thatsmrpyro2u]

i dont have one...and so far it runs fine. that being said i havent driven it alot lately and im sure its about time to freshin up the carb for spring time.

also have used a decent amount of spectre products in the past. most are crap.

 

[DrkZide]

I use this one from Summit..you have to install a separate gauge.

The Spectre ones are crap...

I don't see anything lol

i dont have one...and so far it runs fine. that being said i havent driven it alot lately and im sure its about time to freshin up the carb for spring time.

also have used a decent amount of spectre products in the past. most are crap.

Do you notice a loss in fuel mileage without using a FPR? Any issue with overfilling the float bowls?

 

[djtejas]

Sorry, the link didn't take...here you go

http://www.summitracing.com/parts/SUM-G3131-1/?rtype=10

 

[Stomis]

5-7psi. Usually an FPR is required on a carb truck/car when you have a high horsepower combo requiring alot of fuel. You need more GPH which usually also comes alot with more PSI say from an electric pump. The regulator cuts the pressure down while still having the amount of fuel available when needed.

 

[thatsmrpyro2u]

i honestly never tryed to figure out my mileage, its a trail toy.

 

[6.2Blazer]

Typically I see this on carb'd vehicles for two reasons:

1. The fuel pump puts out two high of pressure for the carb (i.e. someboyd swapped in a carb motor in place of a fuel injected).

2. Pretty common for off-roaders to run an adjustable pressure regulator as they set the pressure low to keep from flooding out the engine when on an extreme angle.

 

[DrkZide]

What would constitute extreme? I'm not planning to go vertical but I'm not planning on flooding out at a 45° angle either.

 

[DizturbedOne]

I dont have one, it runs great on the street, but dies alot at angles. About 45* seems about right too, lol. I planned on switching to electric pump and FPR to help with this, and with quicker starting.

 

[folkenheath]

It all depends on your fuel pump. If your fuel pump requires one because it's a high pressure unit, then you need one. If not, then no.