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Old 11-14-2005, 04:35 PM   #21
Dale McPeters
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Re: ATTN: Anyone with MSD-type RPM Modules

Quote:
Originally Posted by Italian LX
Well, you still need the 6AL box. The 2-step and 3-step modules that you buy fom MSD just interface with your existing rev limiter. The only thing they do is select which RPM chip that is used depending on whether your clutch/transbrake or line-lock is in use. Basically, I just have a relay for each that activates the different RPM values.

However, I also had to add an additional relay to latch the staging RPM so that it would only operate during launching and not during any additional shifts. Otherwise, the car tends to backfire between shifts in a 5-speed car.
Well I guess I will have to dig the other MSD box out of the building.
Now do a write up on the particulars......
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Old 11-16-2005, 09:58 AM   #22
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Re: ATTN: Anyone with MSD-type RPM Modules

http://www.corral.net/Tech/Engine/arm/arm

Just happened to see this today...
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Old 11-16-2005, 09:59 AM   #23
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Re: ATTN: Anyone with MSD-type RPM Modules

Don't even know if that's what you are looking for, but pretty neat regardless...
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Old 11-16-2005, 10:15 AM   #24
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Re: ATTN: Anyone with MSD-type RPM Modules

Quote:
Originally Posted by 93Cobra#2771
http://www.corral.net/Tech/Engine/arm/arm

Just happened to see this today...
Yep, that was the only link I could find in reference to resistance of the RPM chips; however, his formula is waaaay off and nowhere near correct.

Quote:
Desired RPM = (Resistance in ohms) + 1000
The equation he posted (quoted above) is linear equation and I have found out that the chips are only linear within each 1000rpm series.

It's a perfect example of why you shouldn't take everything you read on the internet as fact. I wonder how many people blew up their cars by using the wrong RPM value in their homemade nitrous switches.


Although, other than the wrong reistance values, it's a pretty neat little tech article.
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Old 11-16-2005, 10:21 AM   #25
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Re: ATTN: Anyone with MSD-type RPM Modules

Well, that's some good info to know...
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Old 12-05-2005, 10:16 PM   #26
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Re: ATTN: Anyone with MSD-type RPM Modules

A day late as always but I just now saw this thread. I had this from when i was looking into a window switch on the 96.
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Old 12-06-2005, 07:02 AM   #27
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Re: ATTN: Anyone with MSD-type RPM Modules

Quote:
Originally Posted by joker
A day late as always but I just now saw this thread. I had this from when i was looking into a window switch on the 96.
Dude, you are the man!!!!

Thanks, Jason.
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Old 12-06-2005, 09:47 AM   #28
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Re: ATTN: Anyone with MSD-type RPM Modules

No problem man, glad I could help.
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Old 12-06-2005, 10:33 AM   #29
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Re: ATTN: Anyone with MSD-type RPM Modules

Sweet find Joker!
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