I need some help here guys. I just got my kit #5123 installed and I've run into a problem. At 5K rpm my NOS cuts out! It happens in every gear, right around 5K. It pulls fine up until then. Also, the shop that installed my kit wasn't sure what # jet was the 70 shot. So if you guys could tell me the jet # for the 70 shot that would be helpful. I need help! My NOS isn't working right. It's like a tease right now! It pulls like a son of a bitch then cuts out right when the real power kicks in(5K). Help guys! I tried playing around with the throttle switch and that didn't help at all. I moved it up, down, left, right, and nothing changed. Your help is greatly appreciated! Thanks!
#44006, "RE: Stan2gnt, 96NOS_Eclipse please help!!!!!!!!" In response to Reply # 0
Two possibilites if your pretty sure your connections are good and the solinoids are activating:
1)If you have the fuel pressure safety switch installed its possible that fuel pressure is dipping below the preset pressure at 5000rpms. The 1rst thing I'd check is the jet they put in the nitrous regulator tee (not the one that goes in the fan nozzle). The smaller the jet the higher the fuel pressure is raised. Its possible they put the wrong jet in that didn't raise fuel pressure enough. It wont hurt anything to use the next size smaller jet. The worst that could happen is you run richer. If your fuel filter is real dirty ir fuel pump fualty they could also be responsible for low fuel pressure at high rpm. If I were at home I could give you the jet sizes but my book is at home. I dont have the safety switch installed but I know everything is working and the jet size is correct (and a/f ratio is okay).
2)One I've actually experienced. My bottle heater and nitrous system share some wiring. If I activate and leave my bottle heater on it will almost always cut off sometime during the run if activate at all. I didn't realize this was happening until for some reason I said to self turn heater off and see what happens. Problem hasn't returned since I started turning the heater off before activation. Make sure no other system/relay is interfering with you activation (heater, purge, fog lights if they share wiring). Also I didn't use the included relay with my kit (I broke it taking it out the package) but the kit included directions for wiring with and without (some cars have interference problems witht he ecu without the relay).
Whatever it is there's likely a simple fix if it activates EVERYTIME and cuts off at 5000rpm
#44007, "RE: Stan2gnt, 96NOS_Eclipse please help!!!!!!!!" In response to Reply # 0
well, I took my car back to the shop and they messed around with all the jetting a bit. It seemed to help a little but my car is still cutting out(NOS) at around 5K rpms. Now, I also changed my plugs to one range colder and gapped them to .035. This seemed to help my cars power without the NOS, but didn't solve my problem. I just had my fuel filter changed so I know its not that. Now listnen to this- say I'm accelerating moderately in second gear- doing 30mph at about 3K rpm- I'll flip the switch and dump the throttle and my tires break loose and start spinning. Now I can hear a little "click" when the NOS comes on. Right about 5K rpm though, the power just cuts out. Its not an abrupt stop, but the power seems to fade as the rpm's go up. Now if I'm accelerating in second doing say 45mph at like 5K rpm- I'll floor it and the NOS won't even click on! I can tell it is working in the low rpm range, but it isn't up high. Also, sometimes when I feel it cut out, I can let off the gas pedal a bit, floor it again and it will come on for a second then off again. I'm thinking this must be a problem with my microswitch? Help me guys, no one around me knows! It sucks living in a small town! This is all I've been messing with the last 20hrs., I need your guys help! Tell me what you think, I tried to explain good, and I think I did a good job. Thanks guys!
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