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Old 02/23/05, 03:22 PM   #1
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New Demon Off-Road carb

Demon is releasing a new off-road version of their carburetors. This was mentioned in a thread a week or so ago, so I did some research. Here is the press release:

Barry Grant, Inc. is introducing a new range of truck carburetors with cfm ratings from 525 to 850. Available in Road, Speed, or Mighty versions, the Demon Trucker performs impressively both on and off the asphalt, and behaves particularly well at high angles of roll or pitch making it ideally suited to rock crawling. All of the Trucker models are equipped with four-corner idle-metering circuits and a vacuum-secondary pod fitted with a quick-change spring to control the opening rates of the secondary throttle plates.

In addition, the Demon Trucker is equipped with:
Single inlet for simple plumbing
Side-hung float bowls and .110 spring-loaded needle-and-seat assemblies for better fuel control
Custom check valves in the metering circuitry to prevent fuel siphoning when the vehicle is at extreme angles (rock crawling, etc)
Custom crossover vent tube to help prevent fuel from leaking from the float bowls.
Manual or electric choke on Road & Speed series only
Tuning parts interchangeable with other makes
Attached Images
File Type: jpg demon.jpg (14.2 KB, 108 views)

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Old 02/23/05, 03:38 PM   #2
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did they quote a price yet?

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Old 02/23/05, 04:01 PM   #3
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Originally Posted by kwspony
did they quote a price yet?
no idea on the price yet or an actual retail release. I am assuming the price will be in the same neighborhood as the Holley Truck Avenger as that is their main competition. I don't know a whole lot about Demon carbs, but I am tempted to try this one and see how it works.

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Old 02/23/05, 04:36 PM   #4
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I'll be in line for one of these. I ran a regular road demon on my last Bronco with a 351 and it was great!!! My father in law liked it so much he put one on his small block ford powered austin healy.
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Old 02/23/05, 04:43 PM   #5
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Looks and sounds a lot like the Truck Avenger to me. I have not had my hands on a Demon yet, but they all appear to be very Holley like. BG probably tunes the fuel circiuts a little different than Holley that is why people like them. Most Holleys are tuned to the rich and in some cases very rich side for engine safety.

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Old 02/23/05, 05:01 PM   #6
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Thumbs up

B&G are Superb carbs, you can order them now with all these features or atleast thats what I was quoted last year before they just created a line for them as Offroad Series. They go through a great way of setting up the carb taylored with your drive train. PS I will own one if not two

The B&G carbs run from $360.00 to $700.00, What I have seen for sale in offroad was $360.00 or so, $700.00 if you were planning to put your EB in orbit or skip across the rocks and streams on the trail~

Heres a general copy of the email and reply


Can B&G Carbs be used offroad and in angles? which
series? Thanks Kevin


USE: Off Road and High way



Cubic Inch:351 Windsor

Compression Ratio 9.0:1


Mfg: Ford 2v stock

Ported Yes


Mfg: Polished and Ported Holley idle-5500 rpm, dual plane, non egr


Type: Dual Plane

Ported No


Mfg:Ford Stock 351W cam


Flat Tappet Mechanical

Intake Lift

Duration Advertised

Duration @ .050"

Rocker Ratio

Exhaust Lift

Duration Advertised

Duration @ .050"

Rocker Ratio


Timing @ Idle

Timing @ Full Advance


Exhaust Manifolds(currently purchasing headers)

Primary Size

Collector Size

Pipe Diameter 2 1/2

Muffler Type: Flow Master

Muffler Size



Pump Type: Electric

Pump Size


Type Ford



Wt. 4450 lbs. GVRW,by itself weighs 3750 lbs

Transmission Auto C6

Number of Gears 3

Trans Brake No

Stall Speed

Rear Tire Size 35"X 15
Gear Ratio 3.50


On this combination we'd recommend using a 625 Road Demon Jr. P/N
6282010VE. With the side hung style float bowls on these carburetors
they work extremely well in off road, and rock crawler applications.

Thank you

Technical Support

Barry Grant, Inc.
BG Fuel systems, Demon Carburetion, Nitrous Works, Rush Performance

1450 McDonald Road
Dahlonega, GA 30533

Phone (706) 864-8544
Fax (706) 864-2206

Mon to Fri 8am to 6pm EST

Last edited by BoltBuster; 02/23/05 at 05:14 PM..
67', 351W, C6/NP-205, Crab Cage, 2" body and 3.5" lift, 35 BFG M/Ts
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