541-942-5920
"ET SLAYER" Carburetors

Making a Great Carburetor Even Better!
NEW LOWER PRICING For 2008!
While Everyone Else is Raising Prices We find Better and More Efficient Ways to Manufacture and Pass Those Savings Onto Our Customers
Updated 01.15.08
Due the popularity and tremendous demand of this carburetor upgrade we have been able to reduced some of our manufacturing costs through volume and are now able to reduce the pricing on this great carburetor package
Using the famous Mighty Demon Carburetor by Barry Grant as the base carburetor.
These are a great carb right out of the box, but over the years we have found some small deficiencies and are now able to correct these issues.
Fuel aeration or foaming in the bowls: This is caused by the needle and seat spraying fuel into the top of the bowl causing the fuel to foam. It doesn't take a rocket scientist to figure out that this will cause the float to become unstable and bounce around changing the fuel curve.
Our new Bottom Feeder Needle and Seats put the fuel into the bottom of the bowl virtually eliminating all foaming of the fuel. End result, a solid stable fuel load in the bowl and a steady float level bringing even more consistency to your ET's.

Look at the fuel in the left bowl Compare to the right bowl
Which do you think will deliver more consistent ET's??
The Bottom Feeding "Carp" Needle and Seat

Conventional style Top Loader

The Mighty Demon Standard .110 N/S will flow about 189 pounds per hour at 3 PSI the "Carp" .120 (Standard Upgrade) will flow 239 pounds per hour at 3 psi. You've got a good high volume pump and now you can utilize the pumps full capacity.
Fuel slosh: Another aggravating problem that causes ET's to vary as you go down the 1320. The fuel being delivered into the bowls under pressure colliding with the float , bumps in the track, a little steering correction and those big square floats raise hell with the fuel level in the bowls.
By using our winged or "V" shaped float in conjunction with our "Bottom Feeder" N/Seats these irregularities can be virtually eliminated.

G Forces: Your hard launching bracket car leaves with huge G Forces pushing all the fuel away from the rear main jets. This causes the back side of your engine to go dead lean until the fuel levels back out and begins to feed the back half of the carb again. Try and dial that on your window. By using an encapsulated jet extension (Meaning the jet actually holds the extension in the metering block) in the rear bowl, as the fuel tries to escape from the jet the extensions are still deep into the fuel, result, no lean stumble or fuel curve drop on launch.
Click for large image
NEVER Stick Gaskets: Stamped from M-15 Fiber material exclusively for FBO Systems from our design. This material will NOT Stick Ever, won't tear and leak. Change jets after every pass or every lap, you'll never miss a round or a lap because of sticking, tearing, leaking bowl or metering block gaskets.
In Fig. 1 below you can see how we've beefed up the bowl gaskets, removing holes that are not required for Mighty and King Demons, increased the overall size for better sealing and a better fit.
Check out the metering block main circuit passage in Fig. 2, note the design, now look at your current gasket you'll notice that the gasket covers a major portion of the circuit. Now look at the way our ET Slayer gaskets are cut to allow full fuel flow to the booster.
Both the King Demon and Mighty Demon metering block gaskets have the modified main circuit feeds shape corrected to allow maximum fuel flow.
Now Available for King Demon and Mighty Demon Mechanical carburetors
Fig. 1 Fig. 2 Click for larger image
It's Simply an Investment to Success
FBO ET Slayer Mighty Demon upgrade Includes:
2 Bottom Feeder N/S installed
2-Winged and notched floats installed
1-pair jet extensions in rear bowl Installed
Set of NEVER Stick Gaskets
Full inspection and baseline set up
Drill idle air bleeds to match cam duration
Hard copy version of our 47 page book "Tuning to Win"
Carb price .....................$549.00
Upgrade package ........($204.00 If purchased individually $240.00)
Total "FBO ET
Slayer" carb ....$753.00
Now $733.00
650 CFM-750 CFM-825 CFM-850 CFM are all available.
King Demon ET Slayer
Gasket set, 2 bowl, 2 metering block........Was $69.99 NOW $65.00
King Demon "V" Floats...............................Was $49.95 Now $42.00 pair
King Demon Bottom Feeder N/Seats.......Was $59.00 Pair Now $49.00
King Demon N/S are .120 which flow fuel at the rate of a .150 conventional N/S
So now think about how many rounds you've lost by .01 or .03 or even a couple of thousandths, gone too fast or she just didn't want to run the number. We're all looking for an advantage over the guy in the other lane and consistency will prove over and over to be be the biggest advantage down track and consistently win rounds. We can't promise you that you'll win every race but the closer you can run your number the more rounds you'll go.
Ask Frank Garrett of Bend Oregon:
First 9 races of 2007 I went 9 rounds in 9 race events
Since FBO Upgraded my 850 Mighty Demon I've gone 26 rounds in 6 races with 3 WINS and pocketed over $900.00 in Winnings, moved from 16 place to second at my home track, Won the Mopar Nat's at Woodburn, National Dragster Challenge (I got a Wally!) and secured a spot in the "Race of Champions" at Div. Finals in September.
Best $200.00 I've ever spent on my car.
Update: October 18, 2007
I can't tell you how Happy I am with this car, your FBO Ignition and the ETS carb. As you know we added a Runner Up to the Track Champion Trophy, the Cash Bash Win at Division 6 Finals (Big $$$$) and Rookie of the Year Honors at the banquet. Thanks to you and the whole FBO Crew for flawless parts and solid coaching, it made my Rookie Year one I'll never forget.
If I had of left the 10.06 on the car like you told me I have no doubt I'd have won the Race of Champions and I'd be getting ready for Pomona...never try and out smart the man.
The car ran a 10.069 on the 10.04 dial and I lost by .016 jus wouldn't run the 04 like I thought, again you were right.....but I'm still a Happy loser.
541-942-5920
www.4secondsflat.com
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