For decades the engineers have added "stoves" or air heaters around the exhaust manifolds to get the air warmed up so the fuel would vaporize better. That was done for better mileage. Liquid fuel doesn't burn. It just goes out the tail pipe, wasted. Why do you want to go back to that? The idea of cooling the air is to make it more dense so more can get packed into the cylinders. Your engine uses a mass air flow sensor. The weight of the air is measured by that and used to calculate fuel metering. With more air you'll get more fuel, and presumably more power. I get more air and more power by pressing the accelerator pedal further.
I have a friend with multiple Dodge trucks, all with chips, but those are all diesels. The increase in power is amazing, but on his first one he was pulling a three-car hauler and promptly tore up the transmission. When you have the power, you search for any possible need to pass people when necessary! Fuel mileage did increase too but be aware that if you have a Traveler Computer that shows your fuel mileage, it will read a few miles per gallon higher than what you're really getting. He has used different brands of these chips. His latest project was turning a 2011 Dodge Mega Cab with a six foot box into an eight foot model by extending the frame two feet. The chip he used has a small screen with touch buttons to select various options, and it has to have the software downloaded into it. No internet connection was needed for that. It was actually real easy to do by just following the screen prompts, but the unit took about 15 minutes to do its thing. It appears to be working but the truck isn't painted yet and hasn't been on the road yet. He's waiting for the custom drive shaft to be finished.
His last project was a 2006 dually diesel with a six-speed transmission. The chip on that one has a screen to view engine data, but just a few options you can select. I had a ride years ago in a Viper. This truck feels the same as far as acceleration. He recently pulled a grossly-overloaded 32' goose neck trailer from Texas to Wisconsin with an estimated 38,000 pound load. That finally loaded him down so much, 55 mph was the best he could do. The trailer split one wheel and broke all the lug nut studs for one pair of wheels, but the truck held up! Later he found all my new wiring to the trailer brakes had been crushed because the trailer was bottomed out on the springs. Did I mention it was a little overloaded?
Tuesday, October 8th, 2013 AT 10:09 AM