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-   -   Shifting on rpm or time (https://classracer.com/classforum/showthread.php?t=81828)

ss chief 04-02-2022 05:20 PM
Shifting on rpm or time
 
In SS can you shift on rpm or time?

MEXJOE 04-03-2022 08:45 PM
Re: Shifting on rpm or time
 
Quote:
Originally Posted by ss chief (Post 659600)
In SS can you shift on rpm or time?
What ever turns your crank on that one!��*

SS734 04-05-2022 10:34 AM
Re: Shifting on rpm or time
 
I thought only RPM was allowed?

Using "the transbrake release" to start a timed event seems defiant of current rules in Super Stock?

Mike Pearson 04-05-2022 12:02 PM
Re: Shifting on rpm or time
 
Quote:
Originally Posted by SS734 (Post 659683)
I thought only RPM was allowed?

Using "the transbrake release" to start a timed event seems defiant of current rules in Super Stock?
Pretty sure the only things allowed to be hooked to the trans brake circuit is the brake solenoid and the rev limiter. They even frown on the replay tach connected to the brake circuit

Mark Yacavone 04-05-2022 12:59 PM
Re: Shifting on rpm or time
 
You can shift by time if you use your wristwatch..

GTX JOHN 04-05-2022 01:50 PM
Re: Shifting on rpm or time
 
We always use RPM on our SS cars.
We do not wear watches.

Mike Mans 04-05-2022 03:47 PM
Re: Shifting on rpm or time
 
Quote:
Originally Posted by ss chief (Post 659600)
In SS can you shift on rpm or time?
You can do it with either if you use an MSD PowerGrid. They have a built in timer that can be used for any feature you would like. You can turn on a brake light at 5 seconds into the run if you so choose :)

SS734 04-05-2022 04:13 PM
Re: Shifting on rpm or time
 
Quote:
Originally Posted by Mike Mans (Post 659693)
You can do it with either if you use an MSD PowerGrid. They have a built in timer that can be used for any feature you would like. You can turn on a brake light at 5 seconds into the run if you so choose :)
Hmmm, I don't see any options for using MSD power grid in the rule book? Is this located somewhere else?

Maverick 04-05-2022 05:22 PM
Re: Shifting on rpm or time
 
Need to look for accepted products list, probably on nhraracer.com

Mike Mans 04-05-2022 10:09 PM
Re: Shifting on rpm or time
 
Quote:
Originally Posted by SS734 (Post 659695)
Hmmm, I don't see any options for using MSD power grid in the rule book? Is this located somewhere else?
On the accepted list, page 79 it's MSD 7730 (this is the PN for PowerGrid).

https://www.nhraracer.com/Files/Tech...edProducts.pdf

curtis reed 04-06-2022 10:35 AM
Re: Shifting on rpm or time
 
This switch will work without being hooked to the transbrake circuit. You can set it to see an rpm just above transbrake release and it will start a timer. Now I don't know whether it's legal or not though.



https://racedigitaldelay.com/images/dd-itm-rpm-1068.png

Mike Graham 04-12-2022 05:25 PM
Re: Shifting on rpm or time
 
The rulebook says RPM activated shifters allowed. That indicates that shifting using time is not legal


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