Misfiring while spraying
05-05-2018, 01:54 PM
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Misfiring while spraying I have the NOS mini and LNC2000. I'm running a Dynotune wet kit with a 62N with 32F at 950psi bottle pressure. I have the mini programmed to only spray 65% so its roughly a 100 shot and I have 4*of timing pulled. I have a racetronix fuel pump/hotwire kit and I'm using br7s. The other day I noticed that the car stumbles from 50-65 while its locked up and under heavy load. It does feel like a plug is completely shot, but it studders and stumbles. After 65, it drives fine. At WOT on motor, it feels great. When I spray, it falls on its face and stumbles and misses like crazy. What could this be? Plug wires? It makes me scratch my head how it stumbles and misses on spray but not on motor at WOT
05-05-2018, 02:27 PM
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No I haven't, but it started stumbling at low RPMs like this before I ever tried to spray it. It does perfect at WOT on motor but runs like crap when it's being sprayed. I've only sprayed it once. I'm about to order some MSD wires to put on it
05-05-2018, 02:49 PM
#4
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Is it getting enough fuel while being sprayed? Demand goes up a BUNCH during spraying.
05-05-2018, 02:57 PM
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05-05-2018, 09:49 PM
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05-06-2018, 08:52 AM
#10
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Ignition Coils + Coil Dwell Hi 97, I ask you to tell us what ignition coils you have fitted AND their coil dwell time.
I would fit FireCore 250 SPW
Did you use Silicon Dielectric on the SP Boots ?
Do you have the Metal Shield over the boot ?
Lance
I would fit FireCore 250 SPW
Did you use Silicon Dielectric on the SP Boots ?
Do you have the Metal Shield over the boot ?
Lance
05-06-2018, 09:34 AM
#11
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It's got stock coil packs and stock plug wires. I didn't use any grease or anything when I changed plugs. Yes I have the metal shield over the boot
05-06-2018, 02:08 PM
#12
why did you ask about the grease and metal boots
05-07-2018, 02:11 PM
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No, I haven't had a chance to. I work 7-7 Monday-Friday and live an hour away from home so the weekends are the only time I have a chance to. Its weird because 50% of the time, the car drives fine under heavy load at low rpm but the other 50%of the time, it misses under heavy load at low rpm. It seems to start doing it after I've been driving for 20-30 minutes
05-07-2018, 09:14 PM
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That's what has me scratching my head because these were a brand new set of BR7EF's gapped at .036 and it started stuttering at low rpm before I ever even tried to spray it. Like I said, it does fine on motor at WOT but it runs like dogshit on spray
05-08-2018, 04:25 PM
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