crackle sound when using nitrous
07-14-2008, 06:10 PM
#42
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508 Stroker,
Yes I have a couple other spark plug right ups as well. That seems to be about the best there currently is. I am in the process of collecting a bunch of info and pictures to do a better right up that I think will explain things alittle better.
Dave
Yes I have a couple other spark plug right ups as well. That seems to be about the best there currently is. I am in the process of collecting a bunch of info and pictures to do a better right up that I think will explain things alittle better.
Dave
I got some spot on clean plug chops from a jeff prock direct port system pushing a 3rd en to 9.20's. Tune is dead on, I can get some pics that you can use as an example if you would like. I also have some NASTY pictures from bad tunes, melted pistons, rich, lean etc etc. If I can be of any help at all let me know!
07-14-2008, 06:12 PM
#43
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To the OP, how did the bigger jet work out for you? You should also try to find a way to see what your fuel pressure is sitting at under full load WOT. That can play a role in your jetting, and let you know if you are running out of fuel.
07-14-2008, 06:13 PM
#44
Staging Lane
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Ok, well today i did some more testing. Tried the 20 shot on the fuel and same sound. Also tried a 22 shot and same thing... Im running out of options
I did some trouble shooting tho. I tested with the nitrous turned off and only fuel. It dosnt make a sound so my problem is something to do with the mixture of nitrous and fuel.
I might upgrade my fuel pump, but from what i know my motor only takes as much fuel as the stock integra gsr engine would... so i can't see it not being able to supply enoth fuel... not to mention my integra is a gsr so its what people look for in a fuel pump (puts out the most lph... some thing like 120 if i remember right)
Anyone have any suggestions
07-14-2008, 06:21 PM
#45
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I really do not know your car well at all, so all I can really think of is running out of fuel, or the cold from the nitrous is messing with your air metering causing it to go lean. I am pretty much at a loss. Have you tried talking to other people running the same set up as you? Maybe there is something being over looked?
07-14-2008, 06:28 PM
#46
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I just went out side, let the engine warm up to check the fuel pressure. (gauge on aftermarket fuel rail)
Idel: 28psi
Wot: 33-35psi ~ish (cant really tell since the niddle on the gauge is bouncing when i rev it to wot in neutral)
Vacumm line dicsonnected from manifoldis 39psi simulating WOT
Idel: 28psi
Wot: 33-35psi ~ish (cant really tell since the niddle on the gauge is bouncing when i rev it to wot in neutral)
Vacumm line dicsonnected from manifoldis 39psi simulating WOT
Last edited by lak8; 07-14-2008 at 07:19 PM.
07-14-2008, 06:45 PM
#47
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Revving is different than it being under load though. Open the hood, have a buddy sit on the motor and blast down the street and ask him what it reads 
haha. Like I said, right now, on that set up, I am pretty stumped. Try giving Nitrous Outlet a call and talk with them. Maybe even call NX and see what they have to say.
haha. Like I said, right now, on that set up, I am pretty stumped. Try giving Nitrous Outlet a call and talk with them. Maybe even call NX and see what they have to say. 
