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Old 08-18-2017, 09:55 AM   #11
brett3533
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Default 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.
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Old 08-19-2017, 11:39 AM   #12
voltdr
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Default 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.
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Old 08-21-2017, 12:55 AM   #13
Maverick
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Default 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
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Old 08-21-2017, 07:01 PM   #14
voltdr
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Default 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.
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Old 09-13-2017, 03:36 PM   #15
Charlie Yannetti
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Default 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!!
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