What is the best fuel pressure for nitrous
What is the best fuel pressure for nitrous Just wondering what a good fuel pressure for a fogger kit is. I have herd 12psi and used 7 on a friends car before but not really sure. Also what is changing fuel pressure do when the jetting is correct for example 7psi to 10 psi wit right size jets for both. Does it affect power at all or afr at different parts of a run?
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Joined: Feb 2008
Posts: 247
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From: Waco, Tx
We use 10 psi for our low pressure jetting. I assume you are using a dedicated fuel system?
If you can get your A/F close with jet changes, you can fine tune it by changing the fuel pressure to enrich or lean your mixture. As far as a/f changing at different parts of the run, there are more factors involved.
If you can get your A/F close with jet changes, you can fine tune it by changing the fuel pressure to enrich or lean your mixture. As far as a/f changing at different parts of the run, there are more factors involved.
I Like low pressure stuff myself because it is what I'm used to. I like to run between 4 and 5.5 PSI depending on what jet I'm running.
You can change the tune up by playing with the fuel pressure. On a direct port it is a hell of alot easier to adjust fuel pressure than changing jets. Just remember that whenever you drop the fuel pressure you need to pull timing just to be safe. Then read the plug to see if you can put some back in.
You can change the tune up by playing with the fuel pressure. On a direct port it is a hell of alot easier to adjust fuel pressure than changing jets. Just remember that whenever you drop the fuel pressure you need to pull timing just to be safe. Then read the plug to see if you can put some back in.
I Like low pressure stuff myself because it is what I'm used to. I like to run between 4 and 5.5 PSI depending on what jet I'm running.
You can change the tune up by playing with the fuel pressure. On a direct port it is a hell of alot easier to adjust fuel pressure than changing jets. Just remember that whenever you drop the fuel pressure you need to pull timing just to be safe. Then read the plug to see if you can put some back in.
You can change the tune up by playing with the fuel pressure. On a direct port it is a hell of alot easier to adjust fuel pressure than changing jets. Just remember that whenever you drop the fuel pressure you need to pull timing just to be safe. Then read the plug to see if you can put some back in.
6 & 8 Second Club
Joined: Aug 2006
Posts: 2,284
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From: Illinois, RT 66 dragway area
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There is no way we can even discuss tune up's without knowing what company & what jets you are using??
I use NOS foggers & one jetting uses 5 psi & one jetting uses 7 PSI.
I am running my big spread jetting now & prefer to use as big of a spread as feasable.
If you give all the info, it might help get you closer, quicker.
Just remember with any N2O system, the optimal setting will depend on dome, compression, nozzle, ect ect.
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