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Author Topic:   demon carb performance
Dirt Full Roller

Total posts: 30
posted January 23, 2005 09:16 PM  
does anyone know who might rework my demon alcohol carb. It just doesn't work very well. I have an older braswell that makes more power on the top, smoother through the middle of the corner and the engine runs cooler. Does anyone have any suggestions?

Dirt Freak

Total posts: 352
posted January 24, 2005 06:05 AM  
talk to kp on here

Dirt Freak

Total posts: 259
posted January 24, 2005 04:17 PM  
The Braswell is just a whole lot better carb.

Dirt Forum Champ
Total posts: 753
posted January 24, 2005 04:34 PM  
I had a Demon about 2 years ago and it wasn't worth 2 cents. I hated it.

Dirt Maniac

Total posts: 180
posted January 24, 2005 11:41 PM  
In my opinion, your Demon will never work as well as the Braswell. I had both, and there really isn't any comparison. Swap meet the Demon, and buy another used Braswell, lol.

Any reputable shop should be able to kit the Demon. But, make sure they use the right parts, because gaskets, etc. Do Not interchange with regular Holley parts.

Dirt Forum Racer

Total posts: 89
posted January 25, 2005 06:49 AM  
I have had two Demins with great success, Gas carb that dynoed excellent with no mods. Even the dyno operator was impressed at how well it peformed, almost identical to his favorite carbs. The alcohol carb worked great, but was a little fat on long straight aways above 7600 RPM. One call to Demon and we had it straightened out. Is Braswell a better Carb? No doubt about it, it is a true racing carb. The point is the Demon can be as good but you may need to do the fine tuning that Braswell does with thier carbs. If you have the carb and need it set up Gaerte Fuel Systems can rebuild and run it on a dyno for you as part of their rebuild. Once it is set up all you will need is to freshen it yearly

Dirt Full Roller

Total posts: 30
posted January 26, 2005 08:06 AM  
I would expect that some builder would have figured out how to fix these. There is too many of them out there and all the pieces look right, just not tuned right together.

Dirt Maniac

Total posts: 110
posted January 26, 2005 08:18 AM  
i spoke to c&s carbs yesterday and they will convert any carb to aerosol billet and spec to your motor for 200.00 has anyone done this, i am considering sending my bg in for the rework if its better than my race demon

Dirt Forum Champ
Total posts: 755
posted January 26, 2005 08:19 AM  
Ran one for several years, never gave me any problems. Never had it on a dyno to do any comparisons however.

Dirt Forum Champ
Total posts: 2007
posted January 26, 2005 08:28 AM  
We ran a demon alky for several years. It worked well for us. We switched to gas and got a new custom carb and never had another alky carb to compare to so I dont know how it compares. I am sure a custom built carb would be better but your also paying a bit more. The only thing we had to tune was jetting. When we had our motor dynoed it was way lean. WE went from like a 161 to a 177 jet. Other than that it was always crisp response, idled well, really cant complain. If anything it might have been a little too responsive, but that was prob a little of the engine combo and the carb both. I always wondered how much difference it would make to send the carb itself in and have it dynoed and tuned. Was going to have that done but then changed to gas.

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