Standalone - High or Low pressure?

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Sep 20, 2006 | 09:10 AM

Slow Z28

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Standalone - High or Low pressure?

Did a couple searches and didn't really see a clear answer. Just talk of how to set each of them up.

So the question:

When running a dedicated fuel system for these cars, would you be better off running a high pressure pump that can equal that of what the cars are receiving at the engine, or is a low pressure system, jetted appropriately for that pressure, going to be just as good?

Chris

Sep 20, 2006 | 10:31 AM

Nitro Dave's Nitrous Outlet

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I like running low pressure on a directport..

Sep 20, 2006 | 10:53 AM

TINKRD

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what's the benefit of running a low pressure on a direct port vs high pressure?

seems the norm is low pressure, but why?

Sep 20, 2006 | 11:22 AM

blackls6

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What about on a plate system? Low or high pressure>?

Sep 20, 2006 | 11:28 AM

srsnow

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From: Huntington Beach CA

I prefer low pressure. It is easier to tune because you can use the fuel pressure to adjust A/F ratios easier than you can in a high pressure set up.

Sep 20, 2006 | 12:07 PM

V6 Bird

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Quote:

Originally Posted by srsnow

I prefer low pressure. It is easier to tune because you can use the fuel pressure to adjust A/F ratios easier than you can in a high pressure set up.

thats my thoughts about it. Plus adjust fuel pressure sometimes saves you the hassle of changing fuel jets...unless you find one or 2 cylinders burning plugs then i just up the jets on those cylinders.

Sep 20, 2006 | 12:59 PM

SPEEDYws6

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When you use high pressure on a direct port the fuel jets are so small that they can easily get clogged, and we all know what happens when cylinders go lean.