Any input on Predator carb's

[mopar1968]

Anyone have input on Predator carb's, good & bad?

[zipper06]

I've never personally run one but yrs. ago the monster trucks used to run them, and when i lived in Az. i had friends in a rock climbing club that ran them. I know they work better than a holly for up hill climbs, but as for drags i don't know.

JMO

Zip.

[tcarda]

Back a few years my cousins BBC had a two different setups with the Predators. One was a 2 carb set up and he had a 3 carb sheet metal intake with Predators on it. They seemed to work pretty good, but he never dynoed his motors.

[Scooterz]

A few of my buddies in the 80's had them... but they were Pro-Street appliactions. Back then, they were quite the carb. My friends BBC Chevelle had one & it was very responsive... similar to fuel injection... no hesitations, just clean & throaty.

[hotrodharley]

back when they first came out i had a speed shop that i sold a few..everyone that got one from me loved them..they also worked real good in the 4x4's..at the time they came out you couldn't beat them for reponse and performance then.they was varable venture so they adjucted there self to size carb you needed.one size for all..the first ones didn't have a idle system in them but the next year they came out with the second model that had a idle system in it...they where the best in there time..the 3 major drawbacks they had that stop them was they munted where the linkage was in front of engine[instead of on side]so you had to build or buy a bellcrank linkage to use them..another drawback was no air cleaners fit them then.and 3rd drawback was the cost was double the cost of any other carb..i say that i sold a dozen or so of them before they phazed out.

[mopar1968]

Can you still get parts for them?

[fla1976]

Here is their website:
www.predatorcarb.com/

[TheYellaBrick]

Just a little trip down memory lane before my memory is completely gone......
I lived in McCall, Idaho for 18 years. The man who invented the Predator carb lived outside of Donnely, a crossroads just down the road a piece. The guy was an old country machinist, who's name escapes me at this minute, but was a genius ! Shoulda seen some of his prototypes ! ( kinda like my own shop !) I've seen and fondled some of the Predator prototypes, working and non working. I believe this was after he sold the patent. I never used one nor saw one on an engine while in use.

[JimmySmith]

I have run the predetor some and it is a bugger bear on throttle response and sounds excellant but will not run good down track on 1/4 mile but very simple . Later J.Smith 4621 racing

[blacksleeper]

A friend of mine has a two carb set-up on a BBF mudtruck/rockcrawler. Awsome throttle response. But he's constantly adjusting for conditions. Another friend had one a while back on a street racing truck, he said the same, constantly had to tune it.

[dparker]

I've seen few run. They're very responsive and have great bottom end. But in drag racing they seem to go flat at 1/2 track. I don't know if that can be fixed or not. Thats been with the 5 or 6 that I've seen used at the track.

This is Predators frequently asked questions. They also have a 21 page manuel you can print out thats very informative.


Frequently Asked Questions
How does the Predator work?
The Predator is a variable venturi design that works off of the air demand of the motor and meters fuel accordingly. Thus, provided that you have the proper fuel metering cam for your application, you will neither be undercarbureted or overcarbureted with the Predator at any given rpm range.

What kind of carburetor is the Predator suitable to replace?
The Predator replaces four barrel carburetor applications from 600 cfm to 930 cfm.

What is the Predator fuel metering cam?
The Predator fuel metering cam is a flat piece of brass located inside the fuel bowl that is cut to a certain slope. The slope of this cam is what determines the air/fuel ratio from roughly 3000rpm and up.

How easily can the throttle linkage be installed?
The 6000 is equipped with a simple throttle arm which has two 1/4" diameter holes in it for easy adjustment and quick installation.

What are the adjustments on the Predator?
The three simple adjustments are idle mixture, idle speed, and upper rpm metering cam change.

Is there an air cleaner adapter available?
A standard 5" o.d. air cleaner adapter is included with every purchase of the Predator 6000.

Are there any vacuum hose connections on the Predator?
No, there are no vacuum hose connections on the Predator.

How tall is it?
The Predator is 5 1/4" in height from the bottom of the base to the rim of the air cleaner adapter.

How does it work with nitrous oxide, blowers, and turbos?
The Predator is an excellent application when used in conjunction with nitrous oxide, on a blower, or with a turbo charger (draw though type).

How much fuel psi is required for "all-out" maximum performance?
On a naturally aspirated motor, 6 psi at wide open throttle is required for maximum performance

[oneowner73]

Used to drive an old C/ED in bracket trim with a 316" sbc comp engine. We tried a Predator. The throttle response was so good that driving a hardtail dragster around in the pits and staging lanes was difficult. Every bump bounced your foot and made you look jerky. The results were that the car was still faster on the track with a 750 Holley than it was with the Predator.
Brian

[stealth20]

I wonder how they calculated the cfm...? at what depression?

[gonhntn2]

my dad and uncle both ran them on there mud trucks and loved them some guys talked my uncle into putting a dominator on his truck one time and he got spanked so he threw it away and put his predator back on.