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#1
06-09-2009, 11:40 PM
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Demon ID?
This carb came on a motor I bought some time ago. I'm trying to figure out what model it is so that I can sell it since I won't be using it any time soon. I've been to the BG website and they have an identification guide using the numbers on the carb- this one doesn't have any numbers? Also several models look the same in the pics. Anyhow, it's got 1.75" throttle blades.
I'm hoping someone here is familiar enough with Demons to help. Thanks in advance.
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1966 GTO 1969 Lemans Convertible- F.A.S.T. legal family cruiser. 12.59 on G70-14 Polyglas tires. 1.78 60' 1969 Bonneville Safari- cross country family cruiser. . 1979 Trans Am 400, 4-speed, 4 wheel disc. View from the drivers seat racing down Atco Raceway- http://www.youtube.com/watch?v=GhYDMdOEC7A Ride along in the other lane-http://www.youtube.com/watch?v=mIzgpLtF_uw |
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#2
06-10-2009, 12:47 AM
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Not sure on CFM's but it looks like a "race demon" version because of the lack of a choke horn.
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#3
06-10-2009, 09:01 AM
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Measure the throttle blades and that will give you a big clue. Also trying to measure the venturi size-harder to get that with the booster in the way. Their web site has all the specs for each one. Either a "Mighty" or race. I'd lean toward a Mighty."Speed" Demons have a choke tower.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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#4
06-10-2009, 10:49 AM
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It's definitely not a "speed" Demon, like mentioned above, they have a choke horn on them. Did you pull one of the bowls off to see if there is any stampings on the metering blocks?
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74 GTO Bracket/Street car and another 74 for the wifey to race with! 70 GTO 400, 4 spd, #'s matching and a little to nice for me to own. Friendship is like peeing your pants..everyone can see it but only you can feel the warmth! |
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#5
06-10-2009, 12:54 PM
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Is that the one you got from me? If it is, it's a 750. Tom V. worked his magic on it before I got it. Tom should have more info on it.
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WWW.PatriotGuard.org Standing for those that stood for us. Only two defining forces have ever offered their life for you, Jesus Christ and the American G.I. One for your soul; the other for your freedom |
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#6
06-10-2009, 01:02 PM
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Quote:
__________________
1966 GTO 1969 Lemans Convertible- F.A.S.T. legal family cruiser. 12.59 on G70-14 Polyglas tires. 1.78 60' 1969 Bonneville Safari- cross country family cruiser. . 1979 Trans Am 400, 4-speed, 4 wheel disc. View from the drivers seat racing down Atco Raceway- http://www.youtube.com/watch?v=GhYDMdOEC7A Ride along in the other lane-http://www.youtube.com/watch?v=mIzgpLtF_uw |
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#7
06-11-2009, 11:19 AM
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That's the mighty demon. It's like the race demon except that it has the vacuum port on the bottom for the pcv.
BG has a pretty good site that will tell you all about the carb. http://www.barrygrant.com/demon/default.aspx?page=3 - general ID page http://www.barrygrant.com/demon/defa...e=29&specs=29d - Mighty Demon specs. These should get you what you need. |
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#8
06-12-2009, 09:10 AM
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If you look on top of the main body by the secondary vent tube there should be 2 digits. I can tell you it is definitley a Mighty Demon because I can see the dimple there but can't make out the digits. 28 would be 650 , 40=750 , 42=825 and 56=850.
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Thank you, Technical Support Barry Grant, Inc. BG Fuel System, Demon Carburetors, Nitrous Works, Rush Filters www.barrygrant.com |
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#9
06-12-2009, 12:35 PM
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Thanks everyone for your help.
__________________
1966 GTO 1969 Lemans Convertible- F.A.S.T. legal family cruiser. 12.59 on G70-14 Polyglas tires. 1.78 60' 1969 Bonneville Safari- cross country family cruiser. . 1979 Trans Am 400, 4-speed, 4 wheel disc. View from the drivers seat racing down Atco Raceway- http://www.youtube.com/watch?v=GhYDMdOEC7A Ride along in the other lane-http://www.youtube.com/watch?v=mIzgpLtF_uw |
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