Ugraded Transmission?
04-25-2009, 11:43 PM
#2
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The only thing I have ever seen was a 5 speed replacement that was upgraded for the RX7. Never seen an upgraded 6 speed. I woulda thought that since the tranny is an Asain, it would be pretty decent.
Last edited by PhantomRX-8; 04-25-2009 at 11:46 PM.
04-26-2009, 01:01 AM
#9
04-26-2009, 01:04 AM
#10
Here you go:
****UPDATE - I HAVE THE CONFIRMED '09 RATIOS, AND THEY ARE DIFFERENT. 3RD is 1.536, and 6TH is .787... so, good news for cruising, bad news for 3-4 rev drop. They should have just changed 6th. I will updated these charts accordingly, but another time. Cocktails are calling!****
I figured I'd start a new thread because my gear chart got buried pages deep within the misinformation of the other thread.
The 'strengthened' transmission, is acutally the MX-5 transmission. I saw a new RX-8 version of it when I was in the Mazda Tech center in Irvine last month. This is 100% confirmed. Completely different transmission, with slightly different ratios than the current Aisin box.
Provided the ratios don't change from the MX-5 transmission, the following should be a very accurate gear chart showing the differences between an '04-'08 car and the '09 R3. I omitted 1st gear from this, but first is significantly shorter, so it will run out sooner.
I'll work to verify that the ratios aren't going to change. We hope to have a test-mule transmission here to play with in a month or so, and when we do I'll let everyone know how it holds up.
Car (1st 2nd 3rd 4th 5th 6th FD)
04-'08' RX-8 (3.760 - 2.269 - 1.645 - 1.187 - 1.000 - 0.843 - 4.440)
09' RX-8 R3 (3.815 - 2.260 - 1.640 - 1.177 - 1.000 - 0.832 - 4.770)
Revs @60, '04-'08 RX-8 - 2nd - 8391.9 / 3rd - 6084.1 / 4th - 4390.1 / 5th - 3698.5 / 6th - 3117.9
Revs @60, '09 RX-8 R3 - 2nd - 8807.4 / 3rd - 6391.2 / 4th -4586.9 / 5th - 3897.1 / 6th - 3242.4
Speed @Redline, '04-'08 RX-8 - 2nd - 63.6 / 3rd - 87.8 / 4th - 121.6 / 5th - 144.4 / 6th - 171.3
Speed @Redline, '09 RX-8 R3 - 2nd - 60.6 / 3rd - 83.6 / 4th - 116.4 / 5th - 137.0 / 6th - 164.7
Rev drop, '04-'07 RX-8 - 2nd to 3rd - 6746.7 / 3rd to 4th - 6715.0 / 4th to 5th - 7839.9 / 5th to 6th - 7845.0
Rev drop, '09 RX-8 R3 - 2nd to 3rd - 6885.3 / 3rd to 4th - 6809.6 / 4th to 5th - 8061.4 / 5th to 6th - 7894.2
I figured I'd start a new thread because my gear chart got buried pages deep within the misinformation of the other thread.
The 'strengthened' transmission, is acutally the MX-5 transmission. I saw a new RX-8 version of it when I was in the Mazda Tech center in Irvine last month. This is 100% confirmed. Completely different transmission, with slightly different ratios than the current Aisin box.
Provided the ratios don't change from the MX-5 transmission, the following should be a very accurate gear chart showing the differences between an '04-'08 car and the '09 R3. I omitted 1st gear from this, but first is significantly shorter, so it will run out sooner.
I'll work to verify that the ratios aren't going to change. We hope to have a test-mule transmission here to play with in a month or so, and when we do I'll let everyone know how it holds up.
Car (1st 2nd 3rd 4th 5th 6th FD)
04-'08' RX-8 (3.760 - 2.269 - 1.645 - 1.187 - 1.000 - 0.843 - 4.440)
09' RX-8 R3 (3.815 - 2.260 - 1.640 - 1.177 - 1.000 - 0.832 - 4.770)
Revs @60, '04-'08 RX-8 - 2nd - 8391.9 / 3rd - 6084.1 / 4th - 4390.1 / 5th - 3698.5 / 6th - 3117.9
Revs @60, '09 RX-8 R3 - 2nd - 8807.4 / 3rd - 6391.2 / 4th -4586.9 / 5th - 3897.1 / 6th - 3242.4
Speed @Redline, '04-'08 RX-8 - 2nd - 63.6 / 3rd - 87.8 / 4th - 121.6 / 5th - 144.4 / 6th - 171.3
Speed @Redline, '09 RX-8 R3 - 2nd - 60.6 / 3rd - 83.6 / 4th - 116.4 / 5th - 137.0 / 6th - 164.7
Rev drop, '04-'07 RX-8 - 2nd to 3rd - 6746.7 / 3rd to 4th - 6715.0 / 4th to 5th - 7839.9 / 5th to 6th - 7845.0
Rev drop, '09 RX-8 R3 - 2nd to 3rd - 6885.3 / 3rd to 4th - 6809.6 / 4th to 5th - 8061.4 / 5th to 6th - 7894.2
04-26-2009, 06:51 PM
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i wish there was some type of option for an upgrade i was thinking about a T-56 as well but i wonder how much of the work of getting a bellhouseing and such to work and to make it fit properly, i know the guy on the RX7 site use the T-56 with no problems on theres i need soemthing i can beat up on sometimes . My friend has one in his mustange with a pro shifter and shifting gears the handle barley moves an inch, only thing tho i dont want a hard a clutch pedal,
04-27-2009, 08:25 AM
#15
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i wish there was some type of option for an upgrade i was thinking about a T-56 as well but i wonder how much of the work of getting a bellhouseing and such to work and to make it fit properly, i know the guy on the RX7 site use the T-56 with no problems on theres i need soemthing i can beat up on sometimes . My friend has one in his mustange with a pro shifter and shifting gears the handle barley moves an inch, only thing tho i dont want a hard a clutch pedal,
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