S2000 Under The Hood S2000 Technical and Mechanical discussions.

6th gear swap

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Old 05-26-2005, 06:55 PM
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Thumbs up 6th gear swap



I will be putting my 4.44 gears probably tomorrow, and I was wondering the following:

Will an RSX-S (or any other Honda with a lower ratio) 6th gear be interchangable with the one found in the S?

If its posible, then this would greatly help with cruising revs when doing a diff mod.
Old 05-26-2005, 08:38 PM
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I highly doubt it, as the S's Trans is unique to te entire AHM model line.
Old 05-27-2005, 03:36 AM
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Originally Posted by Slows2k,May 27 2005, 12:38 AM
I highly doubt it, as the S's Trans is unique to te entire AHM model line.
,but so is the diff and its gears are interchangable with Mazda's and Kia's. I think is time to make serious search for this alternative as it would make a 4.77 super appealing
Old 05-27-2005, 04:24 AM
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Can't you just put the sixth gear in from an '04 or '05 transmission?
Old 05-27-2005, 08:51 AM
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I'd love to make 6th into a O.D.

Cruzing at 4500 at 80mph... is not good for mileage

if I want to go fast ..... I'll drop it into 5th
Old 05-27-2005, 06:12 PM
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5th and 6th gears are Overdriven.

5th is .971 6th is .811 on a 00-03 car

5th is .943 6th is .765 on a 04-05 car

Chech out this gear calculator: http://reverendsgarage.net/index.php?conte..._calculator.php
Old 05-27-2005, 07:51 PM
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i too have wondered about this for a long time. I would love to get 4.44 gears but the S is my daily driver. Lets keep this thread going
Old 05-27-2005, 08:06 PM
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I have the 4.57's and I get 25-26mpg normal, and 31mpg on long trips.....


my normal gas mileage went UP (from 21-23mpg), and my freeway mileage dropped about 2mpg. i don't think it's worth the hassle in any way, shape or form. IMO
Old 05-27-2005, 08:33 PM
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I wouldn't worry about it. at 75 mph you're still only around 4300 rpm in the '04. you could cruise on the highway for hours on end at 5000 rpm and still be fine.

I'm most likely doing 4.56 myself down the road
Old 05-28-2005, 03:34 AM
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Originally Posted by s2kVABeachCruiser,May 27 2005, 08:24 AM
Can't you just put the sixth gear in from an '04 or '05 transmission?
I already have a 04 S

Crusing at 2.7-3k for 65mph, not only will it help in milage, but also in engine longetivity.
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