Anyone running a .30 gap

[87gn-newbee]

I have to run this small of a gap to get rid of the popping/cutting out. A friend thinks one of the coils might have gone bad.

Do you think one is bad causing me to run such a small gap? Or am I good?

All tested good with volt meter but I have read that does not always work.

Just trying to get some opinions. Thanks

Dan

 

[FastRegalWE2]

I dont see why it would hurt anything if your not running it really hard. I am running a .40 on my CR42TS plugs which I know is bigger. You may just be losing a small amount of power due to the smaller spark.

 

[onefastjackass]

What boost and what gasoline are you running.At 17 lbs with 92-94 octane then no but at 26 with 114 -116 leaded then yes you should have to shorten the gap some.

Don't count out bad plug wires and other problems also.

 

[postal]

I started having the same problem in the same performance level your in. I went down to .032 gap from .035 and it got better but I still felt a hick-up in it. I tried coil packs, modules, plugs, wires, new battery ect. All these things made the problem less pronounced but still had the small hick up in it at that HP level. I got it to the point where I only really felt it in drive and OD at high boost. For the hell of it I went down to .028 and it pulled clean. I decided if I had to go to .028 to get rid of it then I probably had some problem that shouldn't be there. (who knows maybe slightly dirty electrical connection to the coil pack or some thing crazy like that) I put an MSD DIS4 on the car and gapped the plugs up to .035. Now it pulls clean even past redline in high gear and high boost.

Going to an MSD DIS4 may seam a little extreme but I fought this problem for 3 years! I wasted good money, and time on all the other stuff with some improvement but I wanted the problem completely gone. So if the "regular stuff" doesn't fix it an MSD might be a good investment.

HTH: Jason

 

[87gn-newbee]

I'm running around 22PSI on 92 and alky.

I definately have a problem car cut out on me getting off the highway manually shiftiing from 4-3. Turn car off ran like crap. Clear ecm all is good so I thought.

Then on the way home from PT I come to a stop sign apply the breaks and they slowly strat to hold and stay there brake light comes on. Turned car off started it back up run like crap again. Cleared the ecm it took 5 times to get the brakes to work right and then the IAC wouldn't drop below 60 the 5 miles back home. Get home clear the ecm and all is good.

The car drove fine the whole day yesterday with no problems after re gapping to .30

Where do I start?

I'm hoping not ECM. Big injector mod and ME-R



Dan

 

[Razor]

Dirty socket on chip or ecm. Pull the ecm and triple check the pins where the chip plugs into. If there is any abnormality, this can cuase your issues. A pencil eraser, q-tip with wd-40, and a dental pick are your best friends.

Before pulling your ecm, write down the numbers so you can get the car back on track again fast.

Reboot on zero.. try it again.

I bet its that.

HTH

 

[87gn-newbee]

I hope that's it I just tried that and going to drive to work tomorrow so we will see.

Julio the alky worked great yesterday beat a new corvette on the way home from a 60MPH roll. I want to get this down to see what it will do on the alky.

What do you think about the .30 gap?

Thanks for the tips keep them comming just in case

 

[Razor]

Ya big bully .. quit picking on defenseless Vette's

I run .032 on mine no issue. I dont see an issue with .030 either since your running a good amount of boost.

 

[V6 Beast]

I run .030 with my AC42ts all the time. Helps to stop the boost from blowing out the spark.

Sully