Question about Cars & Trucks
Ytabaja97. Those transmission can be modified to do what you want or need. Well at least the Jeep. Honda, not so much. Change gear ratios and put in heavy duty clutches, bore out some lines in the valve body, replace the torque converter to a bigger stall. Yes you can get a better torque to engine ratio and the Jeep will take off faster. You also have to modify the PCM. There are programs out there to do this, but they are pricey. if you want power, you loose gas mileage. And jeeps aren't known for good gas mileage to start with. And doing the work yourself will cost around $1000+ for parts. Pus the PCM programming.
Posted on Apr 19, 2015
Ray is right about the apples and oranges being impossible to compare and you are right about the power to weight ratio but the reasons are much more involved than merely transmissions and the ratios they are fitted with.
It is not just the way the engine electronics are mapped or the state of tune of the engines that make the difference in matters of acceleration, though clearly these are major factors; there is also the matter of inertia that must be overcome and the law of diminishing gains to be considered.
Acceleration isn't just about providing enough power to overcome the inertia of the vehicle as a whole but also the inertia of each and every engine, transmission and driveline component which needs a different way of looking at.
Lighten the flywheel by a pound or two and because of the reduction gear through the transmission and driveline it can increase acceleration by the same amount as lightening the body by twenty or more times that couple of pounds.
Make an engine more powerful to haul around a bigger and heavier body and all those rotating and reciprocating components also must be made stronger which usually means bigger and heavier. That means more inertia to be overcome which means even more power is needed which means bigger and heavier components which means more power is needed to maintain performance. This is the law of diminishing gains
Think about it too much and insanity will be the result...
Posted on Apr 19, 2015
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Posted on Jan 02, 2017
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