Shifting on rpm or time

[Mike Mans]

Originally Posted by ss chief

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]

Originally Posted by Mike Mans

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]

Need to look for accepted products list, probably on nhraracer.com

[Mike Mans]

Originally Posted by SS734

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]

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.

[Mike Graham]

The rulebook says RPM activated shifters allowed. That indicates that shifting using time is not legal