MSD Pos wire to solenoid or buss bar? - Team Camaro Tech
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post #1 of 4 (permalink) Old Mar 12th, 10, 07:26 AM Thread Starter
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Greg
 
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MSD Pos wire to solenoid or buss bar?

I read all the stuff at madelectrical and am a big believer in connecting the positive side of electrical accessories to the buss bar rather than the battery as I have the original type remote sensing alternator. however, where I plan to mount my MSD I can run a 2' wire to my remote starter solenoid vs. an 8' wire to get it to the buss bar. The battery is in the trunk.

Is it still best to connect it to the buss bar?

Note: The instructions say to connect it directly to the battery.

Thanks!

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post #2 of 4 (permalink) Old Mar 12th, 10, 07:35 AM
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Mike
 
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Re: MSD Pos wire to solenoid or buss bar?

I hate to say it but MSD recommends it to be terminated at the battery. I have my battery in the trunk also. I tried the Red at different places and had trouble with my MSD box. I ended up running my wires to my trunk and added a capicator to the positive side.

If it was me I would terminate it to your starter solenoid. If you have problems then run the wires to the battery.

I had 2 #10 run from the trunk to a fuse block under my dash. That is where I have my MSD box. This is where I powered my fans and other things I needed. I also powered the MSD box from there. I had problems with my box going out. I had my ground going to a chassis ground. That is why I ran both my wires to the battery.

Mike
69 Camaro Prostreet - purple w/ghost flames , 502 w/ 871 blower


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post #3 of 4 (permalink) Old Mar 12th, 10, 11:28 AM Thread Starter
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Greg
 
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Re: MSD Pos wire to solenoid or buss bar?

Thanks Mike. This 6AL-2 says it will run on as low as 5 volts and will run at full output voltage with only 9V input. I don't really have an issue with mounting it at the solenoid as long as I don't get much voltage drop back at the battery.

Hooking things to the buss bar does not really affect voltage at the battery but i don't know how much amperage this thing draws.

69 Camaro, 3650lbs., 400ci, TH400, Coan 10" converter, 3.50 gear
D1SC, pump gas, 9:1, 10 PSI, Water/Meth injection
1.325 60', 5.988 @ 115.4 (carb)
Switched to Super Sniper EFI 2019
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post #4 of 4 (permalink) Old Mar 12th, 10, 04:04 PM
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Fred
 
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Re: MSD Pos wire to solenoid or buss bar?

Over the years with MSD's I've used the starter solenoid. Now the stud behind the passenger headlight on the radiator support. All of them work(ed) great. The battery is in the trunk, fed with 2 ten guage wires.

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