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Hey Guys got a little issue going on with my nitrous set up.
Car 92 BMW 02 Lq4, cam, T56, ACT clutch/flywheel new, LS6 intake with Nitrous outlet money maker, jets 52F 23N. -4 bottle to nitrous solenoid , 3/8 or 5/16 (cant remember) hardline to solenoid. -3 solenoids to jets. Walbro 255. Nos brand powershot noids. System is triggerd via WOT switch and window Switch. Timing is pulled (I believe 1-3 degrees at most) via IAT resistor.
The jets im using should be good for a conservative 100 wheel. On the dyno Im only getting about 50 (see graphs below) with an elevated AFR.
With the Walbro 255 I should have plenty of fuel, I thought maybe I was dropping fuel pressure but on N2O AFR's stay consistent.
The issue is the AFR's are high and its way down on power
Not really sure whats going on, Ive been troubleshooting for a few weeks now. Any Help would be awesome.
If I were you I would hook up a fuel pressure gauge and watch it. you might be going lean. 500rwhp is getting near the limits of a 255 - especially with a rear mounted regulator. Remember, that 255 is really about 225 @ 58psi
If I were you I would hook up a fuel pressure gauge and watch it. you might be going lean. 500rwhp is getting near the limits of a 255 - especially with a rear mounted regulator. Remember, that 255 is really about 225 @ 58psi
Yeah I hear what your saying, its just a huge pain to rig up system to monitor it under load.
The guys at Nitrous Outlet said a 255 should be plenty for my set up. Who really knows tho
You may be really undertimed, but it's hard to tell without knowing what your timing is actually at. Also, you may check into some different solenoids. Those are extremely small and are only designed to give a 125 shot-
You may be really undertimed, but it's hard to tell without knowing what your timing is actually at. Also, you may check into some different solenoids. Those are extremely small and are only designed to give a 125 shot-
Thanks for the input, I am in the process of trying to track down my base timing. However my gut tells that since its making decent power 372whp with a very mild cam that timing shouldn't be THAT far off, but honestly who knows.
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100 shot only making 50hp? 
