New S/C car??

[Average Joe]

Here is some solid advice...

https://www.facebook.com/42143642153...404248325/?d=n

Tstop on somewhere between .03 and .1. Try 0.05 to start.

Shift at .4

Tstop off at 2.75 seconds.

A data recorder is your friend. But you can do it without one. Goal is a consistent 60’ and is achieved with combination of Launch rpm, stop close time, shift timer, and stop rpm.

You didn’t mention the converter you plan to use. You want a fairly loose converter, stall 6600-6800 rpm. When the car is on the stop, you would normally like a converter that doesn’t creep more than 150 rpm when your stop is active. Less creep means your stop ratio will be more consistent. Once you get a baseline, you can start calculating your stop ratio. In general it will be some where around 2.5:1, it could be anywhere from 2:1 to 3:1. So to slow your car down 0.01, you would add 0.02 to your timer.

Good luck!

Edit, I don’t think it is necessary to make a wide open pass.

Edit 2, a fast way to learn and gain a wealth of super class information, https://thisisbracketracing.com/

[Lenny5160]

I think there is a lot of good advice here:

https://www.biondoracing.com/mm5/mer...=FAQs#throttle

No wide open runs needed, but you'll need a plan for "Stop On" Time and your shift time before you begin. You should be able to be really close on the 3rd pass.