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Old 09-30-2022, 11:39 AM   #1
NHRA1926
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Default MSD grid

Anyone using the MSD power grid to run Super Street? My Digital 6AL Plus has issues, so I ordered the MSD grid system and gonna try to use it to adjust timing to run 10.90. Any one out there got any experience or suggestions? I do not use a conventional throttle stop, just a manual limiter on the back of the carburetor. Trying to let the car launch hard, then pull timing out to hit the 10.90 mark.
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Old 09-30-2022, 06:03 PM   #2
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Default Re: MSD grid

Yep I have the grid in both cars, the dodge (sold) was a 11.50 index car ran 10.90ís flat out thatís how I did it. Just would be hard to figure out with different days, and weather conditions.
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Old 10-01-2022, 06:51 AM   #3
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Default Re: MSD grid

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.
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Old 10-01-2022, 05:10 PM   #4
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Default Re: MSD grid

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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
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Old 10-02-2022, 03:11 PM   #5
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Default Re: MSD grid

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 .
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Old 10-03-2022, 05:32 AM   #6
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Default Re: MSD grid

A switch on the shifter to retard the timing back in the modified days.
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Old 10-03-2022, 11:56 AM   #7
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Default Re: MSD grid

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 !!
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Old 10-03-2022, 11:39 PM   #8
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Default Re: MSD grid

Quote:
Originally Posted by NHRA1926 View Post
Anyone using the MSD power grid to run Super Street? My Digital 6AL Plus has issues, so I ordered the MSD grid system and gonna try to use it to adjust timing to run 10.90. Any one out there got any experience or suggestions? I do not use a conventional throttle stop, just a manual limiter on the back of the carburetor. Trying to let the car launch hard, then pull timing out to hit the 10.90 mark.
It became much easier to run Super Street & Super Gas using a good throttle stop controller. I tried the manual limiter but if your trying to kill much et it creates a bunch of problems. I finally gave in a got a Dedenbear timer and air actuator on the linkage. Much more consistent and you can use it at either end.
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Old 10-05-2022, 02:14 PM   #9
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Default Re: MSD grid

Hey, Keith, I know you can change the start rpm, but I don't think you can change the timing, you can see what the timing is, but you can't change it
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Old 10-06-2022, 09:05 PM   #10
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Default Re: MSD grid

Very doable.

Tip: Leave your timing degrees the same, just move the curve in and out.

At 5 degrees, I've observed a 10:1 ratio

IE, putting timing in at 1.8 on one run and 2.5 on the other run, slowed the car 7 hunds. 7 tenths of timing was 7 hunds of ET. But that's in a very specific application. YMMV.
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