Re: Six_Shooter's Money pit/Time Vampire
Quote:
Originally Posted by EagleMark
Next time your at the track, make a run and if breaking up at high RPM? Change plugs! Now take a run.
Don't feel bad. I got done tuning a freinds Big Block Mopar. Put the final chip in for a test drive and the driveshaft broke about half way through first gear... OK, I'm done! :innocent2:
Mark, you're obviously not understanding what I'm saying.
My timing tables are extremely conservative, compared to what other people are running in similar combinations. I'm 8 to 10 degrees less than what they are running in the top end. So much so that my AFRs go real rich. Last night I started adding timing and my AFRs started dropping at those same points. It's not a spark plug issue, it's a spark timing issue.
Re: Six_Shooter's Money pit/Time Vampire
Oh OK!
But, if you still break up top end on track night have a new set of plugs and try it!
Like I said earlier, I learned on a carburated LARGE CAM Big Block Chevy 1/4 mile race car. 11 second car. We got 4 runs out of spark plugs. Pulled, looked perfect, put back in and broke up for another few runs, put in new ones and got 4 more 1/4 mile runs... back then we found out other racers had the same issue... they walked over and told us... this would be early 80's. Don't know if racers are having the same issues today? Top fuel is one run but then after one run they need an engine rebuild too...
Re: Six_Shooter's Money pit/Time Vampire
Well, I pulled the tranny and pulled it apart. I don't think I did too bad at an hour and a half to get the car off it's wheels (onto jack stands), and have the tranny apart so that I can stare at a broken 1-2 shift fork and decide that there is no way for me to fix that before 7 AM. :sad:
Re: Six_Shooter's Money pit/Time Vampire
on a Sunday... :innocent2:
Re: Six_Shooter's Money pit/Time Vampire
Well, I swapped the 1-2 and 3-4 shift forks from a 4 speed, since they are steel. The 5 speed tranny originally had aluminum shift forks, which would probably be fine for someone who doesn't power shift their tranny.... That doesn't describe me at all. LOL
I'll re-install it in the car tomorrow night and then take it for a few laps. :)
Re: Six_Shooter's Money pit/Time Vampire
The 240 is back together and on it's wheels. I'll take it out for a few laps tonight to see how it is.
Re: Six_Shooter's Money pit/Time Vampire
Re: Six_Shooter's Money pit/Time Vampire
My car hates me.....
While tranny feels better than ever, the diff, at least I suspect it's the diff is now making noises. :mad1:
Re: Six_Shooter's Money pit/Time Vampire
Sounds like you need a new PCM with tourque control. :laugh: