dif gears
06-25-2006, 05:11 AM
#2
Try Hardtopguy.com
06-25-2006, 07:25 AM
#3
Do you have J's Racing distributors in Aus? Or you could try your local Kia dealership. You would be far cheaper to have Hardtopguy ship them to you than to go with J's, assuming that HTguy will ship to Aus. Also, a couple of the gearsets are the same as the Kia gears (4.77 for example).
06-25-2006, 11:39 AM
#4
06-25-2006, 01:46 PM
#5
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What final drive ratio are you looking for?
Depending on that you may find some local.
IMHO:
Settle for nothing but the "best" and get the 4.57-R.
But then you're "stuck" with Richmond / ricks2k.com.
Airmail goes a long way these days
Depending on that you may find some local.
IMHO:
Settle for nothing but the "best" and get the 4.57-R.
But then you're "stuck" with Richmond / ricks2k.com.
Airmail goes a long way these days
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06-26-2006, 08:26 AM
#9
Originally Posted by Audi/S2K fool,Jun 26 2006, 09:35 AM
Could I ask a few noob questions about gears?
How much shorter are the 4.77, 4.57 from stock? What kind of a speed deviation would it be. Would the MPG suffer greatly? Would the acceleration improve a lot?
How much shorter are the 4.77, 4.57 from stock? What kind of a speed deviation would it be. Would the MPG suffer greatly? Would the acceleration improve a lot?
It is easy to do a numerical calculation to figure out the %. The stock ratio is 4.10. Therefore, 4.57s would be 11.5% greater mechanical advantage and 4.77s would be 16.34%.
You can see all speed deviations using this calculator. Just plug in the desired numbers and it will do it all for you:
http://www.turnzero.com/technical_resource...gear_calculator
MPG would only suffer for highway running when normally top gear is used since the corresponding rpm would be higher. A faster running engine will use up more fuel. However, for city driving, it has been found that most people will drive the same speeds as before but use one gear higher to bring the rpm down. In some cases, this would make for slightly better fuel economy. The one drawback to this is that whenever a new performance mod like this is added to the car, owners tend to enjoy the extra "punch" and drive it more aggressively more of the time. In such instances, the MPG suffers.
Acceleration would improve immensely up to the point where the time it takes to make the extra shift(s) negates the time saved to get up to that speed. "Gears" may be a detriment for those who are slow shifters. For eg. You may gain 1/2 to 1 second in the quarter mile run, but if you have to make an extra shift just to across the finish line and you take up to 1 second to make that extra shift, then your time won't be any different than if you didn't do this mod. All drivers (be they slow or fast shifters) will benefit from "gears" when comparing to themselves, but it's the lightning fast shifters who garner the most benefit.
It has been shown via G-Tech runs, that 4.77s can improve times for 0-60 by as much as 0.5 seconds for the same driver. This advantage doesn't increase much over the 1/4 mile due to that addition shift involved.