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Author Topic:   HEI
Dirt Roller

Total posts: 8
posted August 11, 2004 07:58 PM  
I am seeing alot of modifieds go back to HEI from MSD and was wondering what the reason was.

Dirt Full Roller

Total posts: 73
posted August 11, 2004 09:14 PM  
For me personally, just easier all the way around. I don't feel like the difference in performance is great enough to warrant the use of three different devices that are just as prone to failure as an HEI is.

Dirt Roller

Total posts: 8
posted August 11, 2004 10:58 PM  
Thats was my opinion, but I am glad that you assured. Thanks for the feedback.

Dirt Maniac

Total posts: 171
posted August 12, 2004 04:00 AM  
Just bought an ACCEL HEI style distributor. Says good for up to 9000. Anyone have any luck withthese things, or did I waste my money?

Dirt Newbie

Total posts: 1
posted August 12, 2004 07:26 PM  
I've been using HEI for four years TROUBLE FREE! Built by MAGSRUS. (see him online, and he run ads in the magazines)
Ed (@ Magsrus),checked it for me last year N/C to make sure it was up to snuff.. awsome product!

Dirt Maniac

Total posts: 115
posted August 13, 2004 11:51 AM  
I personally hate HEI's with a passion. If IMCA were to require them as a means of policing traction control, I think I'd quit racing. I had them in a number of classes through the years and have had a problem with every one of them. Some of these were high end "racing" HEI's. If you are going to run one remember to never weld on the car with it hooked up. This smoked mine almost every time until we figured it out. But we had numberouse problems even after that. I can not remember how many races where I had to drop out or at least ran poorly with HEI problems. In my opinion if you can afford to run a modified get a real racing ignition and leave the HEI for the hobby stocks.

Dirt Maniac

Total posts: 169
posted August 13, 2004 12:24 PM  
I guess its just the luck of a person,This is my 5th year racing and always ran HEI and have yet to have a problem.

Dirt Administrator

Total posts: 6243
posted August 14, 2004 07:44 AM  
been running a D.U.I distributer for 5 years never had problem with it. well worth the money. have feeling imca will be requiring them in near future for traction control reasons. knew some guys that run MSD and have nothing but trouble. plus if you are on a rough track MSD boxes are known for going out, not HEI.

[This message has been edited by terrellracing (edited August 14, 2004).]

Ego Racing
Dirt Forum Champ
Total posts: 724
posted August 15, 2004 09:58 AM  
I have run both and like both. THe HEI with the MSD module and MSD coil has almost the same output as a 6L box. Only had a few small issues that were not a direct HEI problem. I like the bigger cap for less crossfire possability. I have a MSD box that was run in a dirt LM and a asphault mod for 5 years. I got worried about the age and replaced it, I put the old one in my pickup and it has been there for 10years and 180,000 miles without a hickup. I also used to run MSD boxes in out offroad racing trucks which ran in the roughest stuff you could think of and had no falures.

Dirt Forum Champ
Total posts: 755
posted August 16, 2004 06:09 AM  
IMCA has a plan in the works with MSD to create some type of different ignition module for the HEI to help detect traction control.

Dirt Maniac

Total posts: 196
posted August 17, 2004 09:22 AM  
I have an HEI that runs fine.I also have a 6AL box sitting on the shelf.Would it be worth my while to hook the box up to the HEI?I kinda figured that since I would still have the same HEI coil there would be no advantage??

Dirt Maniac

Total posts: 141
posted August 17, 2004 11:40 AM  
It's already here.

- When in doubt, hit the gas.

Dirt Freak

Total posts: 402
posted August 17, 2004 05:06 PM  
I would still have the same HEI coil there would be no advantage??

A stock coil has to play double duty, It saturates itself as well as stores a given amount of electrical energy like a big capacitor. This is the main reason stock HEI don't normaly run well at Higher RPM'S. When installing a CD box of any brand name, you are installing extra cap's so the coil only has one job to do. Multispark discharges are common among these CD boxes and are possible because of so much extra time, and the inability of the caps to store the large amount's of enrgy for long periods. Two birds with one stone.
A CD box will perform better with a coil designed for it but a stock type coil will also work up to the point where more energy is needed to fire hard mixtures, Alky, compression, rich fuel, lean fuel and large gaps.

Dirt Maniac

Total posts: 196
posted August 17, 2004 05:32 PM  
I do have a good coil in my HEI(not stock)
So i am assuming you mean YES i should put the box in with the HEI...

Dirt Freak

Total posts: 334
posted August 18, 2004 03:25 PM  
Not trying to take over the thread or anything here, but after reading this I'm wondering if I should purchase a racing coil (msd, etc.). We are running a stock coil, dui distributor, on a 383 alcohol mod engine turning right around between 7200 - 7600. Last week, I noticed the engine cutting out just for a second right after the flagstand before I let off. We never used to turn over 7000 rpms, so perhaps this could be the coil???


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