High Pressure or Low Pressure for DP
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TECH Senior Member
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Joined: Nov 2001
Posts: 5,109
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From: Grand Prairie, TX
What are you using...Im leaning towards the low pressure for the DP kit. Carb style DP's have been around for along time and there is more knowledge based opinions on that vs the high pressure (fuel injection style) dp's. What would you suggest?
Mike
Mike
Great points, when using a 500hp fogger this holds very true and I would likely use a high pressure system too. I guess i should have specified. The point of using the low pressure system with shots smaller then 300 is to keep the size of the fuel jet large enough to have adaquite flow. Also its harder to get it clogged up with a very small piece of junk floatin through the fuel system. Also for the reason of the fuel taking longer to get to the jet from the noid, I use a longer feed line for the n20 noid to keep it farther from the rail or distribution block. I have no lean spikes at all on tip in with 8psi on my setup with the little 96' s-10. goes from 14.7:1 to 12:1, which is a lettle lean for me but ok with this small shot. Sort of like peanuts compared to a real big tuneup that would require a richer AFR to burn right and keep the plugs lookin good. So I guess it could depend on personal prefrence or what would work good with each type of setup from mild to wild.

