Which Carb for $400

[Indycars]

0-80770 : Street Avenger, 770 cfm, Square Bore, 4-Barrel, Vacuum, Electric Choke, Dual Inlet, Silver
HR-780-VS : Carburetor, HR-Series, Gasoline, 780 cfm, 4-Barrel, Square Bore, Vacuum Secondaries, Electric Choke

Both the Holley and the Quick Fuel carb cost about $400, but the Quick Fuel seems to have several more features
that the Holley does not have.

Holley
Only primary or two corner A/F idle adjustment.
Have to change spring on secondaries to adjust opening timing.

Quick Fuel
Aluminum float bowls.
Screw in air bleeds.
4 corner A/F idle adjustment.
Sight glass for fuel level adjustment.
Quickset external secondary timing adjustment.

If all the features of the Quick Fuel work as advertised, then it would seem that this is an easy
decision. Does anyone have any input or can point me to a review of the QF carb ???

 

[grumpyvette]

http://www.quickfueltechnology.com/carb ... rod-series
http://www.quickfueltechnology.com/carb ... ary-1.html
I have not yet seen one but that looks like its a better deal

 

[Indycars]

I didn't even consider the BG Demon because I thought they were more expensive and I had heard they
went out of business. Checked with Jegs today and they have the Speed Demon (Re-manufactured) for
$365 and a new one for $440. The Demon seems to have several nice features. I wonder what Re-Manufactured
really means ??? Anyone heard anything about BG's financial stability ???
http://barrygrant.com/demon/default.aspx?page=10

I found this impressive selection chart that looks at more than CID, but also cam duration @ 0.050" lift, manifold type,
stall speed and initial timing advance.

 

[grumpyvette]

barry grant IS out of business last time I checked, and thats a shame as the more expensive demon carburetors (KING DEMON)(road demon) were excellent from what ID seen, with several examples , but those were several years old and ID heard rumors quality had dropped recently

 

[Indycars]

barry grant IS out of business last time I checked, and thats a shame as the more expensive demon carburetors (KING DEMON)(road demon) were excellent from what ID seen, with several examples , but those were several years old and ID heard rumors quality had dropped recently

They still have a website and Jegs is still listing their carburetors. Maybe they filled for Chapter 13
and have come back. Still have to wonder about parts in the future and like you said what about the quality.

 

[Indycars]

Tried calling Barry Grant twice today. No ring, no recorded message, just some background static. Not sure what that means, but will try again on Monday.

Proform is the only other carburetor manufacture for Holly style carburetors that I have come up with.....got any other ideas ??? Proform Street Series 750 CFM with vacuum secondaries and electric chokes sells for $440, that's a possibility.....any experiences with them anyone ???.

 

[grumpyvette]

personally Id go with the HOLLEY,DEMON, or Quick Fuel

 

[Indycars]

Since I don't have to have a carburetor right away, I've been waiting to see what becomes of the Demon carburetor. I'm seeing more evidence that the Demon carburetor is back to stay, but I sure would like to here from someone with personal experience with the NEW Demon.

When I go to their website, it looks totally new.......if my memory serves me right.
http://www.barrygrant.com/Index.asp

I found this on Summit:
http://www.summitracing.com/expertadvic ... rburetion/

Partial Quote

The transformation to modern performance and reliability was completed at the beginning of 2012. Today's Demon carbs are produced to a much higher standard than before, to the OEM-style ISO 9001:2008 benchmark to be exact. The new Demon Carburetion made huge investments in updated tooling, state-of-the-art manufacturing processes, product improvements, and in a team of engineers, builders, technicians, and representatives committed to delivering the highest quality products and exceptional customer service.

We've seen these new carburetors up close and we are very impressed with them. All models benefit from uniquely contoured throttle entries and smooth, concentric venturi bores (no more ridge lines to obstruct airflow!) for improved power output without sacrificing everyday drivability. Plus, every made-in-the USA Demon carb is wet-flow tested and packed with features like Max-Density cast metering blocks (Road Demon) or CNC-machined metering blocks with precision-drilled idle-feed restrictors and emulsion bleeds (Speed/Mighty Demon), high-flow fuel bowls with greater fuel capacity, non-discolorable sight-glass windows, 4-corner idle circuitry, power valve blowout protection, and a silver dichromate finish. Speed and Mighty Demon carbs also benefit from the exclusive Idle-Eze base plate, an ingenious device that allows quick and easy idle speed adjustment.

If you click on the Slide Show link, you will find this information.

One question you may ask yourself is, How do I tell a new Demon carburetor from an old Demon? New Demon carbs have the carburetor part number and a date code stamped into the air cleaner mounting pad (green arrow 1). Old Demon carbs do not (green arrow 2).


Another sure fire way to tell Demon carbs apart is by looking at the float bowls. If the Demon logo has raised lettering, it's the new version (green arrow 1). Old Demon carbs have inset lettering (green arrow 2).


The sight glass windows in the fuel bowls are another way to tell new carbs from the old. New Demons have snap ring style windows (green arrow 1); old Demons have screw-in windows (green arrow 2).


Last, if your Demon carburetor came in the mostly black box (green arrow 1), it's the new version. If your carb arrived in one of the other two other boxes shown (green arrows 2 and 3), you have an older Demon carb.


More Info:
http://www.barrygrant.com/Company/
http://www.barrygrant.com/News/DEMON_CA ... ACTORY.asp

 

[grumpyvette]

thanks for the informative up date post!
Ive had very good results with the older demon cards , if the new ones are as good its worth the wait.

 

[bytor]

I wonder what Re-Manufactured really means ???

Be careful with the reman Demon’s. I ordered one 3 years ago and had a few screw holes that weren’t threaded all the way. Probably the reason it was returned. I sent it back and got a new one. I run a Speed Demon 650 for a vortec headed 350. I had to do some tuning with the LM2 to get it where I wanted it. It had a bad flat spot. Tried every combination of pump cams, squinters and jets and could not quite get rid of it. Ended up reducing the high speed air bleed’s and it’s much better. If I did it over again, I would probably go with a vacuum secondary Speed Demon. These are well built carbs and it’s good to see them available again.

I’ll be curious to see what direction you go with your carb choice. I will have to make a similar decision. You could add $1000 to your carb budget and go with this.

 

[Indycars]

I wonder what Re-Manufactured really means ???

Be careful with the reman Demon’s. I ordered one 3 years ago and had a few screw holes that weren’t threaded all the way. Probably the reason it was returned. I sent it back and got a new one. I run a Speed Demon 650 for a vortec headed 350. I had to do some tuning with the LM2 to get it where I wanted it. It had a bad flat spot. Tried every combination of pump cams, squinters and jets and could not quite get rid of it. Ended up reducing the high speed air bleed’s and it’s much better. If I did it over again, I would probably go with a vacuum secondary Speed Demon. These are well built carbs and it’s good to see them available again.

I’ll be curious to see what direction you go with your carb choice. I will have to make a similar decision. You could add $1000 to your carb budget and go with this.

I guess a reman was no better than the company at that time.

Yeah I plan on going with the vacuum secondaries and electric choke, just think they will better for the street. I could probably get away with no choke, since I don't drive it when its below say 60 F, but if ever want to put it on something else.....

I'm keeping my eye open for a post somewhere about the new Demon carbs, would rather someone else do the testing for me!

Maybe if you front me the extra $1000, I can let you know how well it works! :lol:

 

[mathd]

I wonder what Re-Manufactured really means ???

Be careful with the reman Demon’s. I ordered one 3 years ago and had a few screw holes that weren’t threaded all the way. Probably the reason it was returned. I sent it back and got a new one. I run a Speed Demon 650 for a vortec headed 350. I had to do some tuning with the LM2 to get it where I wanted it. It had a bad flat spot. Tried every combination of pump cams, squinters and jets and could not quite get rid of it. Ended up reducing the high speed air bleed’s and it’s much better. If I did it over again, I would probably go with a vacuum secondary Speed Demon. These are well built carbs and it’s good to see them available again.

I’ll be curious to see what direction you go with your carb choice. I will have to make a similar decision. You could add $1000 to your carb budget and go with this.

I guess a reman was no better than the company at that time.

Yeah I plan on going with the vacuum secondaries and electric choke, just think they will better for the street. I could probably get away with no choke, since I don't drive it when its below say 60 F, but if ever want to put it on something else.....

I'm keeping my eye open for a post somewhere about the new Demon carbs, would rather someone else do the testing for me!

Maybe if you front me the extra $1000, I can let you know how well it works! :lol:

Mechanical secondary is good for light weight car.
Vacuum for heavy car is best.

Its best to have a choke(make cold start easier/reduced lean backfire when cold"yes i can't wait for the car to warmup and am already gone for a ride") and i like better a manual choke i hate electrical choke but i probably just need to learn how they work lol

Wish i knew what carb is best, hon i used only holley or rochester q-jet yet.
Did you look into the edelbrock carburetor(i did not check price so maby they are over 400$)? they are a good choiche for street app(apparently better then holley for street).
I know most local NHRA alcohol car here run proform or quickfuel.
Quick fuel seem good to me, proform i dont know it sound like "made in china cheaper copy of holley" but i can be wrong.
I have no clue about the barry grant/demons carb, i would probably get away for these until someone can confirm the newer production is the shit.

 

[Indycars]

I just found this post on the SpeedTalk website dated Tue Apr 17, 2012 10:22 am. It was posted by an employee of Demon Carburetors.

http://speedtalk.com/forum/viewtopic.ph ... c9af25a9a8

Re: Demon Carbs back in business

Unread postby 89 lx vert » Tue Apr 17, 2012 10:22 am
Hello guys and gals,

I am new to this forum. It was brought to my attention that this thread was ongoing and I figured I would come give some information. I am a former Barry Grant employee and current Demon Carburetion employee.

Yes Demon Carburetion is back in business and Barry Grant is no longer involved with the company in any way. Barry Grant Inc. filed Chapter 11 way back in October of 2009 and continued operations until February 18th 2011 at which time the company closed its doors. The court converted the BGI bankruptcy from a reorganization to a liquidation on February 22, 2011 and High Performance Industries completed the purchase of the BGI operating assets in July of 2011 and the process of resurrecting Demon Carburetion began.

The manufacturing facility was cleaned out and moved to its new location, CNC machines were repaired, tooling has been repaired and updated, machining processes have been improved to make more consistent and refined parts, corrections to calibrations have been made as necessary based on extensive testing to ensure a consistently high level of performance.

Many new quality processes have been put in place including processes to mainbodies, bowls, and metering blocks in order to get rid of the billet chips and shavings (a problem of the past). All carburetors are now laser engraved with a complete part number and date code for easy identification. We have taken many additional steps to improve the overall quality of the product and ensure our customers receive the highest quality product. Demon modular carbs are proudly Made in the USA. They are cast, machined, assembled, and tested right here by American workers.

As for the Dahlonega plant, it is owned by an investment group and the last time I was by, it was still empty.

Thanks,
Scott

 

[bytor]

Well, I just discovered the Projection III now has spark control. That was one of the things I didn't like about the package. I may have to think about this more now as an option.

powerjection-iii-now-offered-w-spark-control