Visit The Dirt Forum for More Information

Author Topic:   Fuel Pressure II (Regulators)
posted January 23, 2002 08:36 PM

I read alot on the regulators in another topic. My question. I run in a gas class, I have a 2 barrel Holley and have a block mounted pump. Do I need a regulator or not?
I have one in the line between the pump and carb. It is set at about 5 Psi. This thing is running very hot. We've tried several things to cool it down. The other messages we re talking about the regulators making the engine run very lean.
I've received several PM's with advice and havent been able to try them out yet. Just read the topic and raised my eyebrows!!!!!

PS: Im a newbie so take it easy on my lack of engine knowledge.

[This message has been edited by Dirt-Tracker (edited January 23, 2002).]

posted January 25, 2002 05:16 PM
hmmmmm----any help here?

posted January 25, 2002 06:09 PM
Personally, I've never used an in line regulator with Holleys on gas and mechanical pumps, and have never had an over-fueling problem. We have tried numerous types of pumps, and noticed the difference in pressure by how we have had to adjust the float level to compensate. We have finally settled on using used winston cup pumps, and brother, do they work! Highest pressure output of any we have had, again, judging by float level. We don't have a pressure gage, cause driver don't need one more thing to worry about during cautions! One thing that is often overlooked in a fuel discussion is flow. A high pressure at low flow is easy to get, and will sell a lot of pumps, but will starve the engine, where a higher flow rate at a lower pressure will do just fine. GPH @ xx psi is the key, and I think the gph is the more important figure.

posted January 25, 2002 08:56 PM
Im starting to think I might have found the problem....or I mean you guys found the problem. The regulator was starving the engine of fuel, this would explain why the larger jets we were trying didnt make any noticable just wasnt getting enough fuel. Regulator is coming OUT!!!

Back to the Archives