I deleted the TM and went out to try her again. The car still feels like its hitting off and on. It still doesnt do it all of the time, but its enough to get on my nerves. Also, it does it all of the time at the track just about.

Ive checked all my wires and n20 filter. Im only spraying a 75dry shot and sometimes a 100. Its been like this since ive had the n20 1-2 years ago.

Tranny is fine. It feels just like a FP switch is in there. BUTTTTTTTTT I DONT HAVE A FP SWITCH!!

any ideas?? do i need a new fuel pump?? but its only a 75dry shot! I would try atapping it but it never does it when i have atap in the car!

Also this is on a full bottle!

 

Do you have a msd window switch and after market plug wires? If so sometime you get rf noise from the wires that cuts the window switch on and off. I have only heard of this happening once.
Tony TNT

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Tony TNT:
<strong>Do you have a msd window switch and after market plug wires? If so sometime you get rf noise from the wires that cuts the window switch on and off. I have only heard of this happening once.
Tony TNT</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Tony, i have the MSD switch but i still have stock plugs wires.

any ideas?? i also thought the noid may be acting up. Its been like this off and on since i got the kit, but i thought it may have been my tranny slipping. But the tranny has been checked out and its fine.

 

Do you have a bottle heater? I've seen cars surge like that with full bottles and low pressure. Anything under ~850 and it won't spray right.

If you were losing fuel pressure often I think it would have blown up by now. What plugs and what gap are you running?

 

im running the TR-6's are like .43 gap for NA and N20

is that to much?

but i always spray around 900-1050 with the heater on

 

maybe try to change the plugs again. How often do you change them ?

 

I think that gap is just a tad too big. Isn't the factory TR6 gap like .038? Try to stay between .035 and .038. I would change the plugs and wires at the same time.

Do you have a fuel pressure gauge? I still think if it went lean enough to surge, something would have broken by now. Wideband the car on the dyno. You could be way rich or lean.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by JimTA:
<strong>I think that gap is just a tad too big. Isn't the factory TR6 gap like .038? Try to stay between .035 and .038. I would change the plugs and wires at the same time.

Do you have a fuel pressure gauge? I still think if it went lean enough to surge, something would have broken by now. Wideband the car on the dyno. You could be way rich or lean.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">it could be my gap in the plugs. I change them every 3-5k, or sooner if the ends look bad. I know on atap my car runs rich NA and on spray.

i mean sometimes im around .95 NA then on spray i can get up to .96-.97 everynow and then. I dont really have any signs of running lean that i know of.

does anyone else think it could be the plug gap? cause im sure mine are around .044

 

mine used to do the same and would really **** me off, i ran a 125 dry and would pick up only 2-3 mph due to the surging, so i converted it to a wet kit and all i can say is wow, major difference, mabye something to consider

 

Are you useing the relay that came with the kit? Have you checked or changed the ground for the MSD window switch? Give me a call today I'll see if I cant help you a little more. (903) 839-5498 call before noon (central time) cause I'm leaving early today.

 

Tony, i just got in so its to late to call..

but my ground is good so i know thats not a prob. Im using the relay that ya'll gave me with the kit also.

It mainly only does it in upper gears like 3rd. I thought it may just the vig3600 acting weird on spray for a while.

 

Harold,I would try hooking up a light directly to the ground and positive of the noid and see if you are loosing power there when your spraying if you are then work your way back to see if everything else is giving the rite signal when it should.

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Jason-fbc:
<strong>Harold,I would try hooking up a light directly to the ground and positive of the noid and see if you are loosing power there when your spraying if you are then work your way back to see if everything else is giving the rite signal when it should.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">thanks, ill give that a try also <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

 

Is your car ran off of the micro switch?We recently had a car in the shop for install.It was doing the same thing.It semed like it fell off at 4500.Sometimes it wouldnt hit as hard.It seemed like the micro switch was hitting,turned out as the throttle linkage was going past the point and letting the micro switch dis n gage.You couldnt tell by common eye and it didnt click.
Dave

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Nitro Dave's Performance:
<strong>Is your car ran off of the micro switch?We recently had a car in the shop for install.It was doing the same thing.It semed like it fell off at 4500.Sometimes it wouldnt hit as hard.It seemed like the micro switch was hitting,turned out as the throttle linkage was going past the point and letting the micro switch dis n gage.You couldnt tell by common eye and it didnt click.
Dave</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">hopefully ill be able to tlel that by the little light i have hooked up now. If im loosing connection there(might be slipping off who knows) the light should flicker off and on with the surging. Also, ive been told that sometimes the IAT sensor wont read the n20 and it cause the car to do that. It may be the way my nozzles are in the back of the direct flow lid arghh... im just getting a cam, so after i get all of that right ill try and fix the spray issues.. thanks for the help!!

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 98TAauto:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by JimTA:
<strong>I think that gap is just a tad too big. Isn't the factory TR6 gap like .038? Try to stay between .035 and .038. I would change the plugs and wires at the same time.

Do you have a fuel pressure gauge? I still think if it went lean enough to surge, something would have broken by now. Wideband the car on the dyno. You could be way rich or lean.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">it could be my gap in the plugs. I change them every 3-5k, or sooner if the ends look bad. I know on atap my car runs rich NA and on spray.

i mean sometimes im around .95 NA then on spray i can get up to .96-.97 everynow and then. I dont really have any signs of running lean that i know of.

does anyone else think it could be the plug gap? cause im sure mine are around .044</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You are running WAY TOO RICH, your O2's should be no more than .900 on or off the spray. I had this same problem and picked up a TON of power by getting the A/F correct. Mine turned out to be a filthy MAF sensor, I simply cleaned it with electrical contact cleaner....

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by cantdrv65:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 98TAauto:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by JimTA:
<strong>I think that gap is just a tad too big. Isn't the factory TR6 gap like .038? Try to stay between .035 and .038. I would change the plugs and wires at the same time.

Do you have a fuel pressure gauge? I still think if it went lean enough to surge, something would have broken by now. Wideband the car on the dyno. You could be way rich or lean.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">it could be my gap in the plugs. I change them every 3-5k, or sooner if the ends look bad. I know on atap my car runs rich NA and on spray.

i mean sometimes im around .95 NA then on spray i can get up to .96-.97 everynow and then. I dont really have any signs of running lean that i know of.

does anyone else think it could be the plug gap? cause im sure mine are around .044</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You are running WAY TOO RICH, your O2's should be no more than .900 on or off the spray. I had this same problem and picked up a TON of power by getting the A/F correct. Mine turned out to be a filthy MAF sensor, I simply cleaned it with electrical contact cleaner....</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">those are on the stock unported ends so i may put the ported ends in and give it a try.. cause on atap with the ported ends im around .89-.90

 

NITROUS PRESSURE WONT GIVE YOU A SURGE, EVEN IF PSI ISN'T 900 ITS A DRY SYSTEM AND WONT RUN RICH YOU JUST RUN 600 PSI YOU GET 50 HP ON A 100 HP JET, ID CHECK TO SEE THAT THE SYSTEM IS TURNING ON RIGHT CHECK THE WIRERS, I HAD A WET AND 1 AND 2 STAGE DRY SYSTEM AND NEVER HAD ANY PROBLEMS LIKE THAT, I ALSO RAN MY PLUGS AT .035 GAP AND ADDED SOME BETTER GAS IN WHEN I PLANEED TO SPRAY IT