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Old 09-17-2010, 08:42 PM
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Can you help me identify my Demon Carb?

Cleaning out the garage and came across this.

If anyone could help me identify it, it would be a big help. Thanks.





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Old 09-17-2010, 09:11 PM
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Appears to be a King Demon RS(removable sleeve), Blue venturi sleeve is 1095 cfm. Should have 2.0" throttle blades. There is both an 1095 AD(annular discharge booster) and 1095 ST(straight discharge booster), yours is the annular version from the looks of it, no bridge across the center of the booster.

There is another baseplate with 1.800" throttle blades, but my Demon tuning book doesn't show a blue sleeve combo for the smaller blade size, just Green(795 cfm) and Red(895 cfm).
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Old 09-17-2010, 09:13 PM
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So THAT'S where I left my carb!!

Use the link to ID your carb.

http://www.barrygrant.com/demon/default.aspx?page=3
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Old 09-17-2010, 09:20 PM
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Thanks for the quick response.

I've looked but are there classified ads on this board?
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Old 09-17-2010, 09:32 PM
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Quote:
Originally Posted by vibe
Thanks for the quick response.

I've looked but are there classified ads on this board?
Top of the page- click on "Classifieds" to get started.
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Old 09-17-2010, 09:44 PM
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I've had the same problem often. Move a few boxes or a tote and there's a $1000 carb I had forgotten about.... right next to the gold bullion.

Hopefully this was your garage
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Old 09-17-2010, 09:51 PM
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Yep it was indeed a diamond in the rough.
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Old 09-18-2010, 01:13 AM
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I never find Demons hiding, only Gremlins.
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Old 09-18-2010, 05:10 AM
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Quote:
Originally Posted by Landshark928
Hopefully this was your garage
That's funny!

And gremlins are ALL I run into out in the shop any more! lol

Last edited by cobalt327; 09-18-2010 at 05:21 AM.
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Old 09-21-2010, 06:37 PM
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The techs who answer the email at BG did a lot of looking for info on this carb, I want to give them props for doing the work.

It seems that some time ago, BG was involved w/a project that involved APBA racing. These carbs weren't ID'ed in the same manner as the usual BG carbs, so the exact set-up isn't available for this particular series.

To the right guy- someone well-versed in things BG, for instance- it still might well be a usable piece. BTW, the throttle blades are 1.8".
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Old 09-21-2010, 08:59 PM
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Cobalt, do you have some info here we don't??

I wondered about the throttle blade size as it didn't look like they were 2.0", but my book showed no 1.800" blade and blue sleeve combo, so that is what lead me in the direction it did. (not that it is the total authority).

So what size is this carb??
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Old 09-21-2010, 09:29 PM
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Quote:
Originally Posted by ericnova72
Cobalt, do you have some info here we don't??

I wondered about the throttle blade size as it didn't look like they were 2.0", but my book showed no 1.800" blade and blue sleeve combo, so that is what lead me in the direction it did. (not that it is the total authority).

So what size is this carb??
I just now asked BG TECH that question. The throttle blade measurement was suggested as a possibility by BG TECH and verified by vibe (the OP) after I asked him to measure it.

The venturi size for the 1.8" throttle plate combo would be 1.480", color not withstanding. This series of carbs were somewhat "one off" from usual production, if I understood BG TECH right.

I just received an email from "BG TECH" and he is "our" Tech @ BG that helps out here. He indicated that if the throttle blades had measured 2", it would have used a 1.720" venturi and flowed 1095 CFM- i.e. pretty much 'standard'.

I expect I will have an answer to what size this carb is by tomorrow- he has been very quick to answer my email questions.
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Old 09-21-2010, 09:38 PM
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Ah Ha, more of the puzzle unfolds. Thanks!

Appears it is going to end up somewhere near 695-750ish cfm, based on that venturi diameter.
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Old 09-22-2010, 07:32 AM
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I received the following email from BG this morning- before 9am ET, BTW- and the question was submitted late (~11:30pm) yesterday.

The email reads as follows:

Quote:
Iirc the "advertised" rating on them was 750 based under the rules but the flow capability would be somewhere in the mid 900's imo. Our 4150 750 will flow a little over 900 with a 1.402 venturi and 1 11/16 butterfly so these with a little larger venturi and the bigger butterflies should be in that range.

With them being RS series carbs they can also be updated with larger sleeves into one of our current larger offerings as well.
FWIW, anyone concerned about "customer service"- or the lack of same- might consider giving BG a try.

BG has gone out of their way to answer all my questions about this carb, as well as having Tech @ BG coming on this forum on a fairly regular basis (they've been busy lately) to help out. So kudos for that.
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Old 09-22-2010, 11:02 AM
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Thanks again cobalt for the help in figuring this mystery out.

Carb still up for grabs....
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