Another 6 speed bites the dust.
#81
https://www.miataturbo.net/suspensio...-speeds-55371/
It's been done - apparently. Would love to see a write up on this.
Edit - Ap1/2 has been done... Not sure about the AZ6, but I'm sure I have read somewhere of this being done.
It's been done - apparently. Would love to see a write up on this.
Edit - Ap1/2 has been done... Not sure about the AZ6, but I'm sure I have read somewhere of this being done.
#84
I would just send you the RX8 bits and let you worry about it, but I'm 2500 miles away from you and it would cost seven fortunes.
Last edited by vehicular; 10-18-2013 at 10:43 AM.
#85
Elite Member
Thread Starter
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,478
Total Cats: 144
Actually I could use that sort of encouragement My car budget credit card is maxed out right now and I cant afford anything till the first of the month.
Good news is RX8 6 speeds seem to run a few hundred less than Miata 6 speeds.
bundybob @ EarthLink Dot net
Good news is RX8 6 speeds seem to run a few hundred less than Miata 6 speeds.
bundybob @ EarthLink Dot net
#87
How much power are these transmissions holding on those cars? Does anyone think they're as strong as a TII?
I can use a Miata 6spd in my project with about the same modification time as the TII will require, but the TII being stronger and way cheaper, i threw that out pretty quick.
If the RX8 trans halves that difference and is TII strong, but better-feeling 6spd vs. vaguely truck-y 5spd, i'm down with that. Would work well with a 3.23-ish. Plus then, if we're using Miata tails, that cut downs on fab work for install, as well as being able to use off the shelf V8R driveshaft.
If you want to get real crazy, the BRZ/FRS twins use a derivation of the AZ6 trans as well.
I can use a Miata 6spd in my project with about the same modification time as the TII will require, but the TII being stronger and way cheaper, i threw that out pretty quick.
If the RX8 trans halves that difference and is TII strong, but better-feeling 6spd vs. vaguely truck-y 5spd, i'm down with that. Would work well with a 3.23-ish. Plus then, if we're using Miata tails, that cut downs on fab work for install, as well as being able to use off the shelf V8R driveshaft.
If you want to get real crazy, the BRZ/FRS twins use a derivation of the AZ6 trans as well.
Last edited by concealer404; 10-18-2013 at 12:05 PM.
#88
Moderator
iTrader: (12)
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 20,652
Total Cats: 3,011
I sure am glad you guys figured out what I already told you. The RX8 six speed and Miata six speed are almost identical except for the cases. This from a shop that builds Spec Miatas, RX8s, and RX7s for SCCA.
#92
Elite Member
Thread Starter
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,478
Total Cats: 144
But the RX8 2nd gear synchro is ****. I need to replace mine, I know a guy that went through 3 and another on his second. Just be warned. You can find 6-speeds used on rx8club.com for 300 - 600 but that synchro is a iffy. I intend to swap mine out with an 09+ trans next year.
#93
Elite Member
Thread Starter
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,478
Total Cats: 144
Bob, your car is fast but you fail at reading. ^This is from much earlier in this same thread.
I sure am glad you guys figured out what I already told you. The RX8 six speed and Miata six speed are almost identical except for the cases. This from a shop that builds Spec Miatas, RX8s, and RX7s for SCCA.
I sure am glad you guys figured out what I already told you. The RX8 six speed and Miata six speed are almost identical except for the cases. This from a shop that builds Spec Miatas, RX8s, and RX7s for SCCA.
Last edited by bbundy; 10-18-2013 at 01:51 PM.
#98
Elite Member
Thread Starter
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,478
Total Cats: 144
Some more discoveries. S15 Silvia SR20DET
Stock HP/Tq 245/202 at just 7 lbs of boost. Note: same exact center casting as the 6 speed miata. Note web site shows some mix and matched sections of these transmissions bolted together.
AZ6 Family.
S15 6 spd 3.626 2.200 1.541 1.213 1.000 0.767
NISMO 2.907 1.989 1.537 1.218 1.000 0.862
RX8 6 spd 3.760 2.269 1.645 1.187 1.000 0.843
Miata 6-spd 3.760 2.269 1.645 1.257 1.000 0.843
SXE10 6 sp 3.874 2.175 1.484 1.223 1.000 0.869
TRD 3.106 2.175 1.585 1.223 1.000 0.869
See more at: 6speed option for your Toyota "A"powered rwd car: Grassroots Motorsports forum: Classic Motorsports
S15 Silvia SR20DET Transmission, same center section as Miata.
Stock HP/Tq 245/202 at just 7 lbs of boost. Note: same exact center casting as the 6 speed miata. Note web site shows some mix and matched sections of these transmissions bolted together.
AZ6 Family.
S15 6 spd 3.626 2.200 1.541 1.213 1.000 0.767
NISMO 2.907 1.989 1.537 1.218 1.000 0.862
RX8 6 spd 3.760 2.269 1.645 1.187 1.000 0.843
Miata 6-spd 3.760 2.269 1.645 1.257 1.000 0.843
SXE10 6 sp 3.874 2.175 1.484 1.223 1.000 0.869
TRD 3.106 2.175 1.585 1.223 1.000 0.869
See more at: 6speed option for your Toyota "A"powered rwd car: Grassroots Motorsports forum: Classic Motorsports
S15 Silvia SR20DET Transmission, same center section as Miata.
#100
Elite Member
Thread Starter
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,478
Total Cats: 144
S15 box with the miata 6th swapped in looks pretty good too for gear ratios to me.
I cant figure out what the TRD transmission is out of images of Altezza transmissions I can find look different.