MSD grid

[Maverick]

The thing I don't like about making changes is you got to get the lap top out to make changes. Time is important between rounds.

[Keith 944]

Originally Posted by Maverick

The thing I don't like about making changes is you got to get the lap top out to make changes. Time is important between rounds.

This is not exactly true. In my 1150 car I had the can buss and a timing controller I could easily reach over and change the timing and or launch rpm while sitting in the burn out box

[Tom Goldman]

Using timing retard alone to slow a car is a double edged sword.
If you only need to kill 2 or 3 tenth's it will be very effective and consistent, but if you have to kill a second or so it will play hell with with the engines bottom end, without also using a throttle stop.
Long before the Grid or even timing retard boxes, I used to use a dual point distributor and cut one set of points in and out with a timer and retarding 18-20 degrees out since I had trouble making a tunnel ram work consistently with an air stop. .... It was deadly consistent ,but it was hell on both the rod bearings and the crankshaft .

[SGSST109E]

A switch on the shifter to retard the timing back in the modified days.

[Rich Biebel]

Early 1980's trying to slow my Camaro down for S/ST I tried retarding the timing after the shift....had an MSD retard box and had them send me chips

Toggle switch on the shifter

Flat top SS piston short block.....thin wall pins

My best engine could go 10.40's...

Last TT at Etown points race.....flip switch and a couple seconds later.....BOOM.....Pin broke, piston turned sideways !

Was it a co-incidence? Thin wall pins were known to fail but retarding the timing too much was a bad idea......I believe.....

I just threw those chips out a few weeks ago !!