Quote:
Originally posted by exzeltus
i always hear about gear ratios and them being "taller or shorter" over something else.
Can someone tell me the difference? Like which one is best suited for what type of driving/racing?
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The smaller the number the shorter/closer the gearing will be. The llarger the number the longer/taller it will be. Usually people will switch out the longer gearing for shorter ones so their rpms will fall into a higher rpm point when they up-shift.
Quote:
Originally posted by exzeltus
Does it have anything to do w/ how long you stay in the torque curve w/in a certain rpm/gear?
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Yes its very important that you stay within your powerband to have an effective motor. For example, if you had a B18c1 engine, you would definately not want the LS tranny gearings as it will make your motor drop out of VTEC when you upshift.
This causes the motor to push itself back into its powerband (in this case, VTEC territory) before its power can be more usefull.
Most GSR and ITR owners upgrade to the shorter final gear. With the shorter final gear, it shortens all the other gears as well. So each upshit will garentee you to be in VTEC territory.
Longer gearings are said to be better for FI, but I find that contradicting. I have a FI car and most of the time, I would rather prefer my up-shifts to drop in a higher rpm band as well as rev faster. Only concerns that I have with shorter gearings with FI is traction. Besides that, I'm all for the shorter/closer gearing.
But the most importantly thing to keep in mind is your powerband. Go get your car dyno tuned and look at the torque curve. You want to be able to have enough power on hand after the up-shift so it can still haul ass instead of just sputter there. Each motor's powerband is different from one another depending on how its built. Size the gearings appropraitely to it.
Hopefully 1Greyteg can explain this better as he's better with wording thing than I.
Autocrossing for a day is the best $25 you can spend
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