The MSD Grid System

[Lenny5160]

Originally Posted by voltdr

The MSD 7531 is ILLEGAL for NHRA racing.
Dan

Yes, and it should be an item checked for in tech or random inspections, just like the Grid's ARC module should be.

I don't recall anyone calling for all Digital 7 boxes to be banned because it could be a 7531, yet I hear a lot of calls for the entire Grid system to be banned.

[Charlie Yannetti]

I don't claim to be a computer whiz kid, and don't think that a lap top should be tuning your race car either.. buy from what I'm hearing, the "Cheater Grid" can be programmed to provide an unfair advantage almost EVERY run.. just hit the tree, and you're on a 90 pass..

This was brought to my attention a while back, but it's now come to the fore front at several National Events...

Don't get me wrong, there are great drivers out there, with great cars.. but give those great drivers an additional advantage, and the rest of us might just as well stay home..

[voltdr]

[QUOTE=Lenny5160;537193]Yes, and it should be an item checked for in tech or random inspections, just like the Grid's ARC module should be.


I agree. I had a D4 tech inspector looking at my delay box one time and asked why? He said he was making sure it was on the approved list. I told him he needs to be checking the digital boxes instead. He looked at me me like I was speaking a foreign language.

Dan Foley

[Chuck Westcott]

Charlie ! The problem Lies on NHRA- with all of the Tech cost cutbacks -- In my opinion
They have no clue what they are looking for, And the Cheaters Will always Cheat !

[Maverick]

The grid was the only approved ignition in pro stock a few years back. It would be nice if you were more specific. Yes, I have a grid, but don't have the 7761 ARC control. Charlie, you must not have the Grid
I am more upset with the stage loc, that NHRA is using at all the divisional, and national meet, that keep the racer that shallow staging, from going red. Most people never have heard of it.

[Maverick]

It is a electronic throttle control, delay box, get on the brakes class. The 7761 is not legal. Hopefully NHRA, with step up and clear the air,. Still don't like the stage loc system they use. Steve Williams Div3

[brett3533]

interesting read have not heard of stage lock however at the Lucas oil event at Indianapolis this past weekend in the Super Gas final I saw each racer pre-stage light come on, next bottom stage lights both come on then they went to full throttle and the right lane bottom bulb went out and the red light did come on. Do they only use stage lock in certain categories, all, when they want to, did it Malfunction. I went over to ask what happened when he made it back to lanes for his runner up finish and he said he had a power glide and they can roll back when you apply the trans-brake and go to full throttle. He felt bad but said it is a part of racing he understood the possibility with a power glide you may have to deal with. once again if the stage lock control was on how did this happen. sorry my question is not about the MSD grid but never heard of stage lock. have saw the red light come on many times since 1974 and always understood if you stage very shallow and rolled backward you got the red light same as being staged deep and roll forward.

[voltdr]

This is not a characteristic of Powerglides. It is a powerglide that isn't setup properly or a low volume pump, pressure low due to hot fluid, band adjustment, idle too low. There are several things that can cause that problem but not just because it's a powerglide.
Dan

[Maverick]

Yes, I believe that the way it was explained to me, the stage lite should have stayed on. I will try and look at D3TV and see if I can see what the sequence was. But if both cars are staged, and the tree is activated, and one rolls back, he should not go red. That is the way it was explained to me by several NHRA people. The one I asked last was Cooper, who does the setup for the national events