Having trouble with consistancy
 

I have a H/CM camaro that I run in the local S/SS series. My problem is this. With minimum weather change the car is breaking out by at least .12 on the breaks. If I hold it it through the lights will break out by .16 or more. For instance in 3 time runs, it ran exactly the same, within .006. Ist round maybe 25 minutes later...it goes .11 faster on the breaks hard. 350/330hp Vortec combo in a 68 Camaro. The 60ft times are always the same 1.51-1.53. It seems to be gaining before the 1/8 mile looking at the time slips. Where should I start looking? Any help would be greatly appriciated...i hate loosing in the first round with a .020 light.

Re: Having trouble with consistancy
 

If you're talkin' Saturday, the tailwind in first round could have pushed you under.Then again, if you're gettin' tired of losing that way, I have a list of ways to head home in a different fashion!! Glad to share those with you anytime.

No worries TV, you'll get a handle on it.

Re: Having trouble with consistancy
 

Quit (trying I meant) dialing so hard and freight training it. Just dump at the 1000 and 1254 marks and you'll be all set. Or dial softer and fender them or back into them.

Re: Having trouble with consistancy
 

When I had issues like that between the 60' and 330' timers, it was the torque converter I was using with my 3-speed.
Never had a swing like that though. Mine was more like .03-.05

What is your converter, gear, trans combination, and your launch/shift RPM's?

Re: Having trouble with consistancy
 

Stick car or Automatic? I had issues just like that in my 3 speed but my problem was the darn electric shifter, the RPM switch was bad and one round to the next it would shift like 5-600 Rpm Different.

Re: Having trouble with consistancy
 

Put a trans temp guage on the car! running 25 mins after a time run I bet the trans was hotter then it had been all day...

Re: Having trouble with consistancy
 

Ya the same thing happened on sunday as well with no tail wind.It actually started at the last race but not as bad. Seems like its getting worse and worse. Id like to see that list..hahah. Im not expecting to set the world on fire in CanAm but I enjoy going rounds (who doesn't) and it seems like all my consistancy has gone away.I can see by a few hundreths but if I hold it it will go .2 under no problem. You think the tail wind we had was that strong??

Re: Having trouble with consistancy
 

I say 25 minutes...it was probably an hour for real. Whats a good temp to be at with a 350 turbo?

Re: Having trouble with consistancy
 

TCI group 2 superstock converter, 4.88's, 350 turbo. I leave at 3000 on the 2 step with no brake and shift at 7000 and go through the lights at 7000

Re: Having trouble with consistancy
 

According to the TCI information, you don't have enough gear, and are not spinning enough RPM's to use that Group 4 converter.

If you aren't running class heads up, and want bracket style consistency, an 8" Opel style converter would be the choice, I think.


Jeesh, that didn't work very well......

http://www.tciauto.com/Products/Comp...p_conv_7in.asp