Re: converter help
 

How about just rolling down the return road in high gear and whacking the throttle......

The tires will not spin in high gear and you can easily read the flash on the tach....

I know, I know not as high tech as a data logger, but much cheaper....

Re: converter help
 

My datalogger came as a part of my ECU. And the whole setup didn't cost as much more than an MSD box, distributor, and 2 step.

Re: converter help
 

Mike,
Sounds like the converter may not be made exactly for your combo.
My 385, th350, 4.88s, aftermarket disc/ stock rr drum, 29x9, ATI 4600 treemaster allows me to setup on the 2-step to about 3200 before the car will roll. I do have to set the brakes harder than normal...I footbrake on a regular basis to hit the tree.
It will 60' 1.48-1.50.
I'd call Charlie Plott @ ATI or your personal preference for input as the camshaft and car weight makes a big difference.

Re: converter help
 

My "bracket" / street/strip Camaro is about the same... it has a 9" 4200 converter ( in high gear anytime you "hit it" it goes to 4200 & pulls) but the MAX it will footbrake is 2700....it feels better around 2200. My Cutlass is almost the same too. Oh the Camaro has 28x9 Drag Radials with 4.11 gears (12.40s)

Re: converter help
 

Sounds very similiar to my combo, what are you going thru the traps at with 4.88s?

1.48 and 1.50 VERY nice 60ft......... my best is 1.52 with 4.10s

Re: converter help
 

Between 7200 & 7400.

Re: converter help
 

Cad What kinda of times do you turn? I was thinking if going to 4.56 this year. Thanks Mike

Re: converter help
 

At KCIR, during the CDRA gambler, we went as fast as 1.468/10.97 in the morning @ about 1800' DA.
I lost some mph with the 4.88s compared to my 4.10s. I'd like to go back to 4.30 or 4.56 over the winter.

btw..I launch at 1500 rpms to hit the tree in my usual spot.

Clark

Re: converter help
 

Mike, are the front wheels locked and sliding as you bring the rpms up?

Re: converter help
 

No with the brakes pushed down it just pulls me thru .