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-   -   Need Gear Recommendation (https://classracer.com/classforum/showthread.php?t=45169)

Joe Abbazia 01-06-2013 05:54 PM
Re: Need Gear Recommendation
 
look under the hood not the rear.

Michael Beard 01-06-2013 05:56 PM
Re: Need Gear Recommendation
 
Quote:
shifting @ 7k
Is this where the shift light is set, where you're pulling the shifter, or when the transmission actually engages? These are three different times/rpms.

I leave with my hand on the steering wheel, and by the time I react to the shift light, reach the shifter, slap, and the trans hits 2nd, it can be 700 rpm past the shift light rpm setting. High gear is far less of a difference, but that 1-2 shift is critical. I use an Auto Meter Ultimate Playback tach, and offset my shift light(s) accordingly. This should be basic stuff, but I've met some people that have raced for a very long time that had no idea where they were *actually* shifting.

I agree with others that much of the ET you're looking for is in the first 60'.

Lonnie Cox 01-06-2013 05:57 PM
Re: Need Gear Recommendation
 
Quote:
Originally Posted by Lonnie Cox (Post 364166)
converter is ATI 8inch Treemaster Salesman Charlie Plott
The 2 step was not hooked up, seems to do better when I flashed @ about 2800
What about my tire the roll out is 96 inch

Joe Marcinowski 01-06-2013 06:25 PM
Re: Need Gear Recommendation
 
Try some 92.5 radials.

Quote:
Originally Posted by Lonnie Cox (Post 364172)
What about my tire the roll out is 96 inch

Alan Roehrich 01-06-2013 06:48 PM
Re: Need Gear Recommendation
 
Quote:
Originally Posted by Lonnie Cox (Post 364165)
Greg its is a 350 cid the class is I/SA 12.30 index,
At that weight, you really need the 5.38.

What does the converter actually flash to?

Billy Nees 01-06-2013 07:17 PM
Re: Need Gear Recommendation
 
Quote:
Originally Posted by Alan Roehrich (Post 364183)
What does the converter actually flash to?
Alan, not dissing anyone here but most people don't know what their flash rpm is or how to find it out.
Trans in high gear, slow roll, mat the throttle and see what rpm the tach goes to. That is your flash rpm. Not to be confused with stall speed.

Rich Biebel 01-06-2013 07:26 PM
Re: Need Gear Recommendation
 
Quote:
Originally Posted by Joe Abbazia (Post 364168)
look under the hood not the rear.
I agree with Joe...

You have a good converter and the gearing is not that far off..

60 foot time is pretty slow....and RPM at the finishline is low....as is your MPH, and gearing it up is not going to help....

Either your motor is pretty weak or it is not tuned right....

Monte Howard 01-06-2013 09:20 PM
Re: Need Gear Recommendation
 
Gearing is fine, they are right, you need more HP. Look at you r chassis and make sure everything is moving freely. I found 3 tenths in the chassis on my stocker.

But I think you really need some Hp.

rod butcher 01-06-2013 09:30 PM
Re: Need Gear Recommendation
 
I don't think you need a gear change. You are down on power and/or have a major tuning issue.

Mark Yacavone 01-06-2013 09:54 PM
Re: Need Gear Recommendation
 
Quote:
Originally Posted by Myron Piatek (Post 364162)
Carb tuning is a big factor as well!
That was going to be my point too, Myron... after I asked about the total timing, and where the cam is in at.


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