nx2000racer
05-29-2008, 09:26 PM
I went to the track last night and ran the 100 shot i just put in. I went .3 slower, and 3 mph slower.... the second run i went .4 slower, and 4 mph slower...
I went 13.09 on the 75 shot
i went 13.45 on the 100,
and 13.54 on the 100
it seems to me that its breaking up while spraying, i checked the flowing fuel pressure today, while spraying.... and it was 45 psi the entire rpm range.
From what i can tell, the relay and/or the solenoids are clicking the entire time im spraying.... shouldnt they stay on consistenly the entire time??
NissanSpeed01
05-30-2008, 12:00 PM
Breaking up under spray can be caused my alot of things. Fuel, Air, spark, and nitrous.
Find out which one isnt quite right. Check plugs first! Change to one range colder than stock. dont use platinum plugs
Fuel - new pump? filter?
Bred407
05-30-2008, 12:25 PM
I went crazy with my car trying to find out why my old civic was doing that... 2 words man.. Wheel Spin!..lol
Boosted95
05-30-2008, 09:23 PM
Check ur plugs the gap and u should be using like bkr7e's or something similar in heat range. Also are u running a walbro pump?
seguroski
05-31-2008, 09:40 AM
hey I got a question do you know what size jets you use for the 75 shot on stock fuel pressure, from what I've research is a 034 NOS and 023 fuel jet, but I just want to know what you guys are running.
b14fab
05-31-2008, 01:27 PM
Got this from the NOS instruction manual for 4&6 cylinder applications. Hope this helps
Table 3 EFI System Jetting Map
Fuel Jet at PSI
N2O Jet 20 psi 30 psi 40 psi 50 psi 60 psi
24 19-21 18-20 17-19 16-17 16-17
26 19-21 18-20 18-20 17-18 16-17
28 20-22 19-21 18-20 17-18 17-18
30 21-23 19-21 19-21 18-19 17-18
32 22-24 20-22 19-21 19-20 18-19
34 22-25 21-23 20-22 19-20 18-19
36 24-26 22-24 21-23 20-22 19-21
b14fab
05-31-2008, 01:29 PM
^^^Damn the chart is messed up, ill try and find a link
b14fab
05-31-2008, 01:31 PM
Its in this manual on page 16-
http://static.summitracing.com/global/images/instructions/nos-199r10295.pdf
wellitsover
06-01-2008, 02:09 AM
they should stay on. I would check your wiring and replace your button or whatever your using to activate the solenoids.
turbofied
06-01-2008, 08:09 PM
Also while your at it run a small LED or somthing off your 87 pin, easiest way to tell if it's working. When your at full noise you can't hear relays