Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

Holley Black

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Old Jan 14, 2003 | 10:40 AM
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Holley Black

Well, I finally got the pressure up. For those of yall that didn't know, I put a Holley Black on my truck about a week ago and have had trouble with the pressure ever since. I only got 9 psi at idle. Not good considering it is set to flow 140gph at 14 psi free flow from the factory. I called Summit and I called Holley and couldn't get a straight answer from either of them. I finally got a competent worker from Holley that told me to pull the bypass plunger out and clean it and shoot some brake cleaner inside the plunger valley and to see if that helped. Well, I did that and the pressure shot up instantly. It idle anywhere between 8-17 and holds 11psi at WOT with comp on. ;D Now, here's my question. The pump fluctuates pressure wildly. While I'm accelerating, it holds between 13-15 psi. When I stop, it drops down to about 6-8. Then as soon as I touch the gas, it jumps right back up to 14 or so. I'm assuming this is normal since it is an unregulated pump and that it is adjusting itself to the amount of pressure required by the VP44. Or something like that. Does this sound right to you? I would like to extend my most sincere thanks to Rod for helping me out through this ordeal. I can't tell you how many emails I have sent to him and how much help I have gotten from him. The kit is an excellent kit and bolts up nice and easy. All of the parts are very high quality. For any of yall that are planning to do this, I would suggest cleaning the plunger BEFORE putting it on the truck. It is very easy to get to while it is on the truck, but do it anyways to save yourself the hassle of this. [glow=red, 2, 500]THANK YOU ROD!!!!![/glow]
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