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What would be the best and most efficient way to boost the 1800 C models power from stock? :?:
 

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Read a post a few weeks back from a guy who swears by putting a 200/16/60 rear tire on his X he boosted his horsepower and torque, said it was the best mod he had done so far for the money.
 

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Let the engine "breathe" better/more efficiently. Dump the restrictive airbox and restrictive exhaust and there's your start. 8)
 

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Horsepower or torque either one have nothing to do with wheel size whatsoever.

Changing wheels can effect your gear ratio somewhat, that's it.
 

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Tapper said:
Horsepower or torque either one have nothing to do with wheel size whatsoever.

Changing wheels can effect your gear ratio somewhat, that's it.
Then why would my 84 full size chevy put out different dyno numbers when we swapped the 33's to 31's just to see the difference?
 

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VTXN04JB said:
Tapper said:
Horsepower or torque either one have nothing to do with wheel size whatsoever.

Changing wheels can effect your gear ratio somewhat, that's it.
Then why would my 84 full size chevy put out different dyno numbers when we swapped the 33's to 31's just to see the difference?
You are changing final drive gear ratio's. since chassis dyno's are actually just accellerometers you are seeing the difference in gearing. You didn't touch the engine right?? so how could it make anymore power.

A side note in the latest cycle news the got an R6 into the 9's in the 1/4 by gearing it down 1 tooth in the front and strapping the forks down. Gearing makes a huge difference in acceleration.
 

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he is correct, your 31 would have an extra revolution every 11 or so, the dyno would notice this and think its attributed to horsepower.
 

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You guys are arguing semantics now as well - if the dyno was adjusted to show the tire change then you'd get the same numbers for results.

With that said, Tapper meant that swapping from a 180 to a 200 rear tire would have NO affect at all since these tires are wider not taller or shorter. In fact, going to the 200 would likely cost you a small amount of power since you're spending eneergy turning a bigger tire.
 
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