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-   -   The MSD Grid System (https://www.classracer.com/classforum/showthread.php?t=66576)

brett3533 08-18-2017 09:55 AM

Re: The MSD Grid System
 
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 08-19-2017 11:39 AM

Re: The MSD Grid System
 
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 08-21-2017 12:55 AM

Re: The MSD Grid System
 
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

voltdr 08-21-2017 07:01 PM

Re: The MSD Grid System
 
If all (4) (pre-stage and stage) lights aren't on when the tree activates, the side missing a light will go red.
Dan

Charlie Yannetti 09-13-2017 03:36 PM

Re: The MSD Grid System
 
Yes, Mr Wescott, you are right.. and no folks, I don't run a Grid.. 7AL-2 with a 2-Step works just fine... LOL!!

Wilson1 06-19-2019 11:44 AM

Re: The MSD Grid System
 
I get a kick out of people that say the Grid is a cheater system. It isnít. In fact it is much easier to tell if a guy is using traction control or slew rate with a grid that someone running a 6 or a 7 with a separate box. That can be hidden very well and almost impossible for the tech guys to find. The reason they check after the first run is if an ARC (slew rate module) is hooked up to a Grid it will remain visible for 60 minutes of run time. So you canít hide the module and turn it off with a switch. In fact if you are running against a guy with a Grid, 7 out of 10 times you can rest assured he is overthinking it and might be putting himself at a disadvantage if you are bracket racing. You can do all the things with a 7 that you can do with a Grid, itís just harder. You canít make an inconsistent car consistent with a Grid and you canít make a bad combo good with a Grid.

Keith 944 06-19-2019 12:45 PM

Re: The MSD Grid System
 
The stage lock system has its limits also. maybe an inch or so of backwards roll is allowed. I believe this was first put in place for the pro stock motorcycles that can rock back a hair when staging.
Maverick, You should be very happy to have this in place instead of your comments to the contrary. don't you run a clutch car? This could keep you from red when staging shallow. My dad had a 69 charger with a four speed and he would roll back sometimes when he mashed the gas, went red several times before I talked him into a line lock to set same time.
No one is cheating or has an advantage to this by shallow staging. this is just the way any good racer keeps his car rollout the same and consistent.
Now back to our regularly scheduled program....

Maverick 06-19-2019 01:12 PM

Re: The MSD Grid System
 
I guess the thing I did not like about the stage lock system, is the fact, I didn't know it existed, till one day I see four sensors instead of three, and ask questions, and have to go to several NHRa people before I get the answer. This was two years ago, when I found out. I am not upset about it, but it more of me not knowing what the rules are, because I can't find it in the rule book. I was in the tower numerous times, asking questions to the division director, or the tech guys, . Yes I have a clutch car, and my car does not roll back. It rolls forward, so if the prestage does go out I am out. But if you roll back out of the stage beam , you are ok

Keith 944 06-19-2019 02:04 PM

Re: The MSD Grid System
 
You have 7 inches to roll forward, you may have an inch to roll back

Maverick 06-19-2019 03:15 PM

Re: The MSD Grid System
 
I think it is more than a inch, need to talk to Cooper, at a national event. He has stated he has have had issues with the reflection off the ground . Uses special paint to try to make it a non issue. It don't matter to me any more. I just to like to know the rules so I can play the game. Bottom line, I mentioned that two years ago, and it not a issue any more, not knowing.


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