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Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

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post #1 of (permalink) Old 02-17-2002, 11:02 AM
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oh TR

will a TFI coil live at a full 12 volts

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post #2 of (permalink) Old 02-17-2002, 10:49 PM
 
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Re: oh TR

The coil will live at almost any voltage you want to throw at it.
It's the module power switching transistors that take the beating.
<hr>
I haven't used a resistor in 20 years using the DuraSpark module, but if you want to be safe, use a resistor.
My best friend has had his vintage Mustang (daily driver) running for 10 years using the same module, and no resistor.

I use the E-core coil with no resistor.
No problems...
<hr>
The factory guys say 1.35 Ohms total resistor to keep the module alive, but they use a 1.35 Ohms resistor alone, not to mention the resistance in the coil (around an extra .45 Ohm)...

Take your pick.

So many cats, so few recipes...
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post #3 of (permalink) Old 02-17-2002, 11:05 PM
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Re: oh TR

TR, I'd like your recommendation on coils. Which MSD coil or other would be the best to use with the MSD 6a? This is for an AMC 360 that is driven almost every day. Here's some pictures of how it looks now with the exception of the addition of an accel foam filter last night. Currently I have the cheap coil for Ford applications.




Thanks

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post #4 of (permalink) Old 02-17-2002, 11:13 PM
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Re: oh TR

thanks very much thats what I needed to know....

post #5 of (permalink) Old 02-17-2002, 11:27 PM
 
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Re: oh TR

WILL,
What are you asking me for, you have the answer bolted to your compressor.
That E-core and the Premium canister coils will both do about the same when attached to a MSD 6 series module.

The advantage of the E-core coil is the high voltage terminal configuration, NOT being oil filled you can mount it at any angle, and you can replace it at any auto parts store or junk yard on the road.
<hr>
WildWilly,
No problem man.
Good luck.

So many cats, so few recipes...
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post #6 of (permalink) Old 02-17-2002, 11:51 PM
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Re: oh TR

I have no problems with the current coil, I was just wondering if there was a better coil. Most of the time price reflects quality. I didn't know if that was the case here or not. In a summit catalog, for example, there are a number of e-core coils from MSD, ACCEL, Holley and Crane which are in the $35-$50 range. The one I have was about $15. Again, thanks.

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post #7 of (permalink) Old 02-18-2002, 12:56 AM
 
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Re: oh TR

I have used the MSD E-Core SS Blaster in a number of MSD driven systems. Part number MSD-8207 $34
http://store.summitracing.com/partdetail.asp?part=22439

I've seen the $100+ MSD e core's used and they don't produce any appreciable improvement for our applications, and I can afford to have 2 extra spares for the same price. They're also easier to find on the shelves in local shops.

'83 CJ-7 nothing original but the tub and axle tubes
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post #8 of (permalink) Old 02-18-2002, 08:23 AM
 
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Re: oh TR

Will,
Something I noticed in your lower Pic. You need to move the power steering belt to the back of the pulley. Looking at the angle the belt is, you will probably throw the belt sometime.

78 CJ7 304V8,TH400,Dana 300 Twin stick,Custom HD-WT AMC20 detroit locker 4:10,D30 ez-locker 4:10,Built NOT Bought.
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post #9 of (permalink) Old 02-18-2002, 10:18 AM
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Re: oh TR

Steve, I think you are right. It looks like I used the groove for the "removed for testing" air injection pump.

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post #10 of (permalink) Old 02-18-2002, 10:31 AM
 
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Re: oh TR

What bothers me the most is the Green and Purple (mag trigger) leads from the MSD module are not twisted and run too close to the high voltage lines.

Also, there is only about 1/4 of the air cleaner a V-8 needs.

So many cats, so few recipes...
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