SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: jet fever on March 31, 2014, 04:48:35 PM
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Anybody run these carbs? Any advantages/disadvantages
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Most boats ive seen them on are on tunnel rsms with dual carbs
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Predators work OK but use slop the same way as skill.
Not very efficient. Not to mention the fact that they are vacuum operated and if sized properly, a jet boat does not make enough manifold vacuum to make the work to their full potential...
They are more suited to the pull truck type application.
JMHO.
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Yeah my buddy was thinking about two carb tunnel ram setup. His pop suggested them I never heard about em.
Hes gonna stick with his single Quick Fuel set up.
Thanx for the input
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Yeah my buddy was thinking about two carb tunnel ram setup. His pop suggested them I never heard about em.
Hes gonna stick with his single Quick Fuel set up.
Thanx for the input
Yeah... going from quick fuels to predators is kind like going, "Hey... this nail gun works pretty good and all... but I think I'm gonna start using my forehead to pound nails in."
Predator carbs are an interesting anomaly... they "kinda" work, but they also kinda never seem to live up to what people think they ought to do. Some people absolutely swear by them, but more times than not, a properly built/sized/tuned Holley (or Holley based carb) will out perform... or at lest that's been my experience the several times I've had with them. In a nutshell, they are basically of the same idea as a Stromberg or SU carb... variable venture so that you can have both worlds of large carb and low end driveability and response. The catch is... if they were truly all that and a bag of chips... they'd be on everything... not some obscure oddity... because things that work, tend to catch on.
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I had one on my boat and it had a funny whistle when the motor was running, changed to a holly to get rid of the whistle and had better all around performance. sold the predator to a buddy and he put it on his blown chevy and it worked great.
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Yeah I see thrm on alot of blower motors and tunnel ram setups he was wondering if he should keep the one carb or dual but hes gonna stick with the single. Building a 496 for his Banner.
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Depending on how "built" his 496 will be... a typical pump gas deal, hard to beat the single 850.
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I'm running a hp 950 holly on a mild built 496 850 should wrk fine
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