fuel pressure regulator

-
pyrojim

pyrojim

Well-Known Member
Joined
Feb 4, 2013
Messages
1,163
Reaction score
39
Location
Chesterton, Indiana
I bought a 71 dart and had the motor rebuilt. 360 magnum. Best guess is 400+ HP. I have a holley 650 4150 on an rpm air gap manifold. When I bought it, it had a 750 holley and a fuel pressure regulator. Do I need to keep the regulator? What are the pros and cons ??? The one that was on it (B&M) I think is shot and I'm not sure spending the extra $100.00 plus dollars is worth it.
Thanks..
Jim
 
Replace the regulator and adjust for about 6.5 lbs for your Holley. Some fuel pumps have them built in and some do not. What fuel pump are you running?

if you don't run one, fuel pump pressure can creep up and override the float and needle and flood your crankcase with fuel.
 
Are you using a electric fuel pump? If not then you don't need the regulator.If you are using electric pump then you do.
 
pyrojim said:
The fuel pump is a new carter street strip. Part # m6270
Click to expand...

Those pumps are rated at up to 8-9 psi. You should be running a regulator set between 5 to 6.5 psi. Anything over that can overpower your needle and seat on the carb - and it will happen causing problems you don't want. Don't bother with the cheap (Spectre) inline regulators.

You should be able to find one like this for less than $30 from Summit and it'll do the job: http://www.summitracing.com/parts/hly-12-803/overview/

The Quick Fuel and Summit brand versions are the same but even less $
 
You must log in or register to reply here.
-

Back
Top