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Author Topic:   Carb types
leapinlizard
Dirt Freak

Total posts: 435
posted December 08, 2005 08:53 AM  
What's a "Aerosol(sp?)" carb and what the basic opertating theory? Pro's Cons? Links to info would be helpful.

What about the carbs without boosters?

KPLugnut
Dirt Forum Champ
Total posts: 1032
posted December 08, 2005 11:06 AM  
The term "aerosol" is a sales pitch/product line coined by C&S Specialties. They build nice billet venturi sleeves and use brass tubes for boosters (instead of the traditional design of booster venturi).
Feel free to read about them here:
www.candsspecialties.com
They are, like anything else, "another way to skin the cat"....

As for "carbs without boosters", other than the "aerosol" style, Holley has had annular discharge carbs out there for many years. The basic concept is that main fuel supply is delivered radially thru entry points around the entire circumference of the venturi and not through one exit point in the booster itself. As long as fuel signal/pressure drop is maintained, it works as well as a carb with boosters, but at lower vacuum signals and lower rpms, throttle response suffers and it's not always the best way....again "another way to skin the cat". :-)

Hope that helps,

KP

turmoil
Dirt Roller

Total posts: 8
posted December 17, 2005 09:18 PM  
WE BOUGHT A C@S AREOSAL CARB THINKING IT WAS THE HOT SET UP. BEFORE THE RACE SEASON STARTED WE DYNOED ARE NEW MOTOR AND WE CHECKED IT AGAINST ARE BLAKE CARB AND IT MADE MORE HP SO WE THOUGHT WE WERE ON THE RIGHT TRACK. PRACTICE DAY CAME AND THE CARB WAS LIKE A ON OFF SWITCH. AND ON THE BOTTOM END HAD NO RESONSE SENT BACK IN THEY SAID THEY FIXED IT IT WAS NO BETTER THAN BEFORE NEEDLESS TO SAY IM RUNNING OLD BLAKE WITH LESS HP. I DROVE MY BUDDIES CAR WITH AREOSAL CARB AND IT DID THE SAME THING AND HE THINKS ITS THE BEST CARB OUT THERE. SO ALL THOSE RACERS OUT THERE THINK YOUR AREOSAL CARB IS GOOD THERE PROBLY IS A BETTER CARB OUT THERE. AND YES DID SET FLOATS THE WAY THEY SAID TO DO IT AND SET THE IDLE THE WAY THEY SAID.

MrHP1
Dirt Full Roller

Total posts: 26
posted December 17, 2005 11:53 PM  
C&S carbs make good power but they are touchy on throttle response. If your driver is on the floor all the time he'll like it. If you have a set up, track or driver that requires throttle modulation this ain't your carb. Although the design mimicks an annular discharge booster, it is way more radical. Max CFM for throttle bore, that's this carbs strong point.

A. Bighurry
Dirt Full Roller

Total posts: 51
posted December 18, 2005 10:52 AM  
We went through the same thing awhile back. Turns out that the "shear nozzle" doesn't pick up signal nearly as well as a booster so down low it's pretty dead. We made a change and no doubt went in the right direction. On restarts and off the corners there is no comparison, and if anything it was at least as good if not better in the midrange and top end.

MrHP1
Dirt Full Roller

Total posts: 26
posted December 18, 2005 12:18 PM  
Like I said. Hard on the throttle these carbs kick a**. Light throttle the signals dead. You should see them on a supercharged motor!

A. Bighurry
Dirt Full Roller

Total posts: 51
posted December 19, 2005 03:51 PM  
We're actually about to. We had our old one sitting around and thought that it would work well for something we're screwing around with. We're doing a blow through F1-R 410 c.i. 10" tire car. Carb is being set up now by JDR. This oughta be fun, I think.

MrHP1
Dirt Full Roller

Total posts: 26
posted December 19, 2005 07:19 PM  
Make sure to reference the power valves to the pressurized intake manifold. I used this carb on **** through application, never a blow through. Don't know how it would work. Should be interesting.

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