Fuel pressure & nitrous.
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Joined: Aug 2004
Posts: 71
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From: Greenville S.C.
Fuel pressure & nitrous.
I just installed an ajustable fuel pressure regulator and i was wondering if anyone would know what i need to set the fuel pressure at? I put nitrous on the car last week and it was running a little lean so i needed to add more fuel but just not sure how high i needed to go.
thanks in advance.
thanks in advance.
Burning Brakes
Joined: Jun 2003
Posts: 949
Likes: 0
From: smithtown ny
The Nitrous Kit Should Come With A Chart. If Your Useing A 100 Shot It Should Tell You How Much Fuel. Also I Think You Have To Retard Timing 2 Degrees For Every 50 Hp And Run A Colder Plug. I'm Not 100% Sure Some Will Know
Drifting
Joined: Jun 2001
Posts: 1,997
Likes: 1
From: Lake Ozark MO
It'll be a bit of trial and error.
For instance, my setup is a TNT plate system running about 950PSI bottle pressure, 50PSI fuel pressure(28lb injectors) and TNT's 75hp fuel jets/100hp nitrous jets.
This netted me about 115RWHP on the dyno (422RWHP total) with a perfect A/F ratio (for my tastes on the juice) of about 12:1.
Personally, I'd make my setup run as strong as possible off the juice. Then I'd creep up on the combination of your nitrous setup's fuel/N2O jetting and bottle pressures.
Best to start off with a fat fuel jet and slim it out from there.
The stock (recommended) TNT 75hp fuel/nitrous jetting (with the same bottle and fuel pressures as above) ended up with a 65RWHP increase at a 9.5:1 A/F. A bit too fat but ultimately safe (and understandable from the manufacturers point of view).
This is where I started from and worked from there.
Take small bites. It costs less
For instance, my setup is a TNT plate system running about 950PSI bottle pressure, 50PSI fuel pressure(28lb injectors) and TNT's 75hp fuel jets/100hp nitrous jets.
This netted me about 115RWHP on the dyno (422RWHP total) with a perfect A/F ratio (for my tastes on the juice) of about 12:1.
Personally, I'd make my setup run as strong as possible off the juice. Then I'd creep up on the combination of your nitrous setup's fuel/N2O jetting and bottle pressures.
Best to start off with a fat fuel jet and slim it out from there.
The stock (recommended) TNT 75hp fuel/nitrous jetting (with the same bottle and fuel pressures as above) ended up with a 65RWHP increase at a 9.5:1 A/F. A bit too fat but ultimately safe (and understandable from the manufacturers point of view).
This is where I started from and worked from there.
Take small bites. It costs less
