IMCA stock car HELP!!!

[drivingexcitement]

I actually think I had found my problem before I went there. I am pretty sure it was msd box. I sent it off to get tested and installed a new one. New msd box I picked up 600 rpm. But it appears my carb was jetted to rich as well. I still dont understand why or how I couldnt notice it was 8 jets too rich. It still ran good on the dyno with the big jets in it.

To me, the jets seem small, but if everyone trusts the gauge they hook up to the exhaust, than I will jsut leave it.

[Racer #42]

Hey man i was having the same problem and it was my msd box. That was last year, however this year it did the same thing and we went and bought a new msd box and it kept having a miss and would just plain out and it was our fuel pump rod. its the new ultra light weight one and its already wore down. Idk what caused this, but its about a 1/8th of an inch wore. And that solved my problem. Just somethin else u may can check. Good luck with it and hope u get it right.

[stock car driver]

Are you running a 350 carb or 500?

My 350 carbs are 78-83 jet on big motors with high compression and my 500 is 78 jet on my 360 IMCA motor.

3 jet sizes was enough to make my big motor with big carb at USRA events not run and foul the plugs.

78 is .089 in size

80 is .093 thats quite a jump.

83 .094

Ive never had a msd box issue except when I had the postive ground and it fried the box, so it didnt run period. I have had ford solonoid issues and coil issues that caused weak spark and couldnt burn the fuel.

Is it a secret who you are? or where you race?

[stock car driver]

I actually think I had found my problem before I went there. I am pretty sure it was msd box. I sent it off to get tested and installed a new one. New msd box I picked up 600 rpm. But it appears my carb was jetted to rich as well. I still dont understand why or how I couldnt notice it was 8 jets too rich. It still ran good on the dyno with the big jets in it.

To me, the jets seem small, but if everyone trusts the gauge they hook up to the exhaust, than I will jsut leave it.

Well how did it go for you at Cj friday?

[drivingexcitement]

I was way off on hp, 271 at the wheels

[stock car driver]

Im not a fan of helping someone who wont post their name or who evades out right questions on here.

I know who you are and I know you are on my racing fan page on facebook. I wont post your name but if you want to continue to get help from me please post it, I cant think of any reason for wanting to be annonymous.

271 still isnt bad, a 406 I won a lot with was 240 on my chassis dyno. I sold that motor for 2k after winning 2 of 3 in Abilene in 2010 in Feb.

Jeff

[bigblock]

From what I saw of his car on Friday night it didn't look like anything had changed. I had him roughly 1.5 seconds off the pace. It looks like the car is going to spin out every turn and no traction off the turn. He stayed up front in the heat but there was a little cushion he could catch at the top but then once one guy got around him after 3 laps it was like a freight train and he fell back to the rear. It got slick for the feature and he just went backwards. I would say it is a set up problem. Whether the numbers look right or not it is not working.

[ToddSmith16]

...an axle is busted???

[stock car driver]

...an axle is busted???

That is really really obvious, as the one tire will just spin and the car is crazy to try and steer.... been there done that long ago.

[ToddSmith16]

...not so obvious to others!

[parrot69777]

Looked to me like his car was a little more stable....however once he got some pressure.....it looked like old times. Then he got into the demo derby going on in the back and it was more like survival.

[bushracing67]

a busted axle would be more like 15 seconds off pace

[stock car driver]

Looked to me like his car was a little more stable....however once he got some pressure.....it looked like old times. Then he got into the demo derby going on in the back and it was more like survival.

That doesnt sound like a good time.

Doesnt Slick Nick from Dominator give set up advice or a good starting point?

[drivingexcitement]

Yes he does. Answers anytime I call and willing to do whatever he can to help with the car.