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Jetting and EFI Fuel pressures ?

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KWIKR 1

Active Member
Joined
May 25, 2001
Messages
1,885
Do nitrous kit companys offer jetting charts for EFI 3 Bar base fuel pressures using a plate rather than a nozzle ? if not how do you determine jetting based on a 45psi base pressure ?

My setup consist of a Victor Jr converetd to EFI , .8oo" Fuel Rails , MagnaFuel 2 Port EFI Reg (Boost Referenced/ 2 x #8 AN, 1 x #8 AN return). each rail will be fed with -8 fuel line . where would be the best spot to take off a supply line for the nitrous fuel soleniod ?
 
Some reading "material"..
Also, call the company that made the system...
Zex addy is in this article.
How To Tune Fuel Pressure For Nitrous - Car Craft Magazine

Given the jet is a fixed size, I don't know why you couldn't do the math to figure the flow at a given psi.... Just like we do w/ injectors.
Once the N2O mfgr gives the flow at a particular psi, it could be done. new psi/old psi, then the sq root of that, X the original flow rate, should produce a new flow #.
 
Some reading "material"..
Also, call the company that made the system...
Zex addy is in this article.
How To Tune Fuel Pressure For Nitrous - Car Craft Magazine

Given the jet is a fixed size, I don't know why you couldn't do the math to figure the flow at a given psi.... Just like we do w/ injectors.
Once the N2O mfgr gives the flow at a particular psi, it could be done. new psi/old psi, then the sq root of that, X the original flow rate, should produce a new flow #.


I found this . and from what I can tell it's pretty accurate if you compare it to the jet chart for custom nitrous applications posted by Edelbrock if you base it on on 42-43psi/bottle at 950psi . do you agree ?

http://www.nitrous.info/images/Jet_Sizes_2.25.pdf

Edelbrock.com - Nitrous Systems - Fuel Jet Tuning
 
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