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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 09-18-2012, 02:52 PM
TruckeeT2 TruckeeT2 is offline
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Default Fuel Heating Catalyst

Has anyone heard or used a fuel catalyst such as Cal-Cat from their web-site, "It works by using the warm water in your vehicle's radiator and engine cooling system. We harness this heat and run the gasoline or diesel through the Cal-Cat where the heat plus the catalyst improve the properties of the fuel."

Was wondering if this works good in the 5.7L Engines, My buddy has one in his 2008 4.7L Ram and says he see's a improvement in performance and MPG's
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Old 09-18-2012, 04:03 PM
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Your buddy is outta his mind.
This junk takes snake oil to a new level.
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Old 09-18-2012, 06:15 PM
TruckeeT2 TruckeeT2 is offline
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Believe me I'm not really buying into this yet, that's why I'm coming on here for anyone that has come across these before.

Heating the fuel does make sense for performance because when your fuel ignites in the cambers not all the fuel turns into gas after it gets injected. To me the colder the fuel is when it's injected the less that turns to a gas and vis versa.
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Old 09-18-2012, 11:24 PM
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I don't think cold fuel is a problem in today's high pressure return & returnless fuel systems. def save your money for a mod that will do something for you.
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Old 09-19-2012, 05:03 PM
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I saw a vehicle built back in the 80's by some guy that used tha principle. The fuel was super heated and atomized before the throttle body giving about 55-60mpg in a car that only got 30ish new (fiero I believe).

The principle of what the company you mentioned is trying to sell is sound, but its not as simple as your radiator heating the fuel. The fuel has to be super heated, think 400-500*, and then completley atomized (20-30 times finer than your injector sprays). By super heating and complete atomization you can get near 100% burn efficiency, lower emissions and much more power, but the equipment to do this would be highly complex (why the 80s invention never took off).

Bottom line is a simple heat exchanger and a catalyst (if it even works) will not get you that much of an improvment. Keep in mind a gasoline/diesel engine is only about 25% efficient, the rest is lost to heat. If you really want efficiency then go to steam, its about 40-45% efficient. Steam was just as popular as gasoline was until the mid 30's. The reason steam faded away was convienence, in a gasoline engine you turn the key and off you go, even in the best steam engines it took 2-3 min to warm up. No one wantss to wait 2-3 min to be able to drive after they start their car/truck!
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