Transmission Options?

Whizbang · 04-07-2013, 11:10 PM

i think because they are 04s and there was some sort of defect with the length of the shift linkage.

WankelsRevenge · 04-07-2013, 11:40 PM

In all reality this will just be going into a street ported NA motor, so Im sure any trans will be able to handle the power. Sadly with the scarcity of FC transmissions they are either going up in price, or are in questionable condition.

Whizbang · 04-07-2013, 11:44 PM

really? i never seem to have problems finding them at the pull apart

***TitaniumTT*** · 04-08-2013, 09:08 AM

Quote:

Originally Posted by Whizbang

i think because they are 04s and there was some sort of defect with the length of the shift linkage.

It wasn't a defect, but there was a TSB put out and a different part available if the shift rod was at a diffrent spec.

Quote:

Originally Posted by WankelsRevenge

In all reality this will just be going into a street ported NA motor, so Im sure any trans will be able to handle the power. Sadly with the scarcity of FC transmissions they are either going up in price, or are in questionable condition.

It has nothing to do with power why these tranny's "break." I've never seen one break from torque input, that to me defines a weak tranny.

By the way, I have at least one n/a tranny if you're interested.... condition unknown, shipping would cost you more than the tranny...

If you wanan go all out, we offer fully rebuilt, cryo'ed, basically "blueprinted" trannies for the ITS racers that we have legions of... shoot em a PM if you're interested in that option

infernosg · 04-08-2013, 12:29 PM

Any Mazda "Type M" transmission can be swapped in (all N/A RX-7'd, old B-series pickups, '04 and earlier Miatas, RWD 626's, etc.). This makes any number of gear ratios available. You can even mix/match 5th and reverse gears if you'd like. You will have to swap the housings (bell, intermediate, and extension) and also pay attention to the length of the input shaft. You can't swap the input shafts but you can turn down the longer ones to RX-7 specifications.

My5ABaby · 04-08-2013, 02:50 PM

Swapping any tranny into an N/A 7 really doesn't make much sense (sans maybe a race car). Just get another N/A tranny, or do a TII tranny swap, and be done with it. It's more than strong enough, and many people run them on turboed cars and have no problems.

***TitaniumTT*** · 04-08-2013, 05:32 PM

ITS racers usually strip the teeth off 4th gear after a few races.... These are 180rwhp race cars....

My5ABaby · 04-08-2013, 07:20 PM

Quote:

Originally Posted by TitaniumTT

ITS racers usually strip the teeth off 4th gear after a few races.... These are 180rwhp race cars....

K. Sans race cars.

infernosg · 04-09-2013, 03:08 PM

Quote:

Originally Posted by TitaniumTT

ITS racers usually strip the teeth off 4th gear after a few races.... These are 180rwhp race cars....

Are they shearing the teeth off both the input shaft and the cog on the mainshaft or just one of those? Just curious because I plan on road racing with my Miata transmission.

diabolical1 · 04-11-2013, 08:52 AM

Quote:

Originally Posted by TitaniumTT

What makes you think the RX8 transmission is weak?

Quote:

Originally Posted by TitaniumTT

Define broken.

Quote:

Originally Posted by TitaniumTT

It wasn't a defect, but there was a TSB put out and a different part available if the shift rod was at a diffrent spec.

Quote:

It has nothing to do with power why these tranny's "break." I've never seen one break from torque input, that to me defines a weak tranny.

I've been trying to follow the bread crumbs you've dropped thus far, but I'm not sure if I've still gotten anything from your cues. maybe i'm slow. at any rate, what's the deal with the Rx-8 tranny? full commentary/dialog is fine with me. hell, even conjecture on your part is welcome.

for me, despite what I've been seeing people say about them, I can't say I was ever swayed into thinking of them as a lost cause. I had/have every intention of using mine in the event I decide to put an older 13B in my 8.

I always assumed input shaft issues and that was from simply reading between some of the lines of bullshit over at the Rx8Club. if I recall, one of the turbocharged 20B Rx-8 guys had his pulled apart and fashioned a custom input shaft for it. to my knowledge that was all he did, but obviously I can't say for sure.

so is that in line with whatever secret you hold?

diabolical1 · 04-11-2013, 08:54 AM

... and just a general question since we're talking trannies ... are there any other models out that there that used the Type R? i'm asking simply because i'm curious if there would be any other choices for gear ratios outside of the T2.

infernosg · 04-11-2013, 09:51 AM

Quote:

Originally Posted by diabolical1

... and just a general question since we're talking trannies ... are there any other models out that there that used the Type R? i'm asking simply because i'm curious if there would be any other choices for gear ratios outside of the T2.

My understanding is the Type R transmissions were used in turbocharged/heavy duty applications. So think turbo RX-7's, RWD 929's, later B-series trucks, etc. I've not read anything about people swapping gears with those, however. This page has some information toward the bottom: http://www.solomiata.com/Drivetrain.html.

Rotary Evolution · 10-11-2013, 06:50 PM

Quote:

Originally Posted by TitaniumTT

Define broken.

since i had another 8 in with a "broken" transmission i figured i would take a picture for you..

i have never pulled a 'turtle' out of any other early transmission, though they have different weaknesses.

was not turbocharged, did not have an engine swap, all 190ish whp glory of the renesis engine.

Quote:

Originally Posted by TitaniumTT

It has nothing to do with power why these tranny's "break." I've never seen one break from torque input, that to me defines a weak tranny.

you did say that, correct? i suppose you are half right. the issue isn't with the amount of torque input, it is with the amount of output and the problems in the back half of the transmission.

WankelsRevenge · 10-11-2013, 09:35 PM

I think I might go with a T2 swap. Im just trying to sift through all the chaff and figure out what I actually need for the swap. I know I need a T2 driveshaft, but there seems to be debate over which flywheel/clutch I need to mate it up to.

silverfdturbo6port · 10-11-2013, 10:01 PM

you will need a t2 flywheel and clutch to run the t2 trans. THat is if the t2 flywheel will fit. Im not sure what the diameter of the rx8 flywheels are.

04-07-2013, 11:10 PM	#16
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	i think because they are 04s and there was some sort of defect with the length of the shift linkage. __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

04-07-2013, 11:44 PM	#18
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	really? i never seem to have problems finding them at the pull apart __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

04-08-2013, 12:29 PM	#20
infernosg IT'S ALIVE! Join Date: Dec 2009 Location: Richmond, VA iTrader: (5) Posts: 811 Rep Power: 15	Any Mazda "Type M" transmission can be swapped in (all N/A RX-7'd, old B-series pickups, '04 and earlier Miatas, RWD 626's, etc.). This makes any number of gear ratios available. You can even mix/match 5th and reverse gears if you'd like. You will have to swap the housings (bell, intermediate, and extension) and also pay attention to the length of the input shaft. You can't swap the input shafts but you can turn down the longer ones to RX-7 specifications. __________________ '86 Mazda RX-7 Base '79 Mazda RX-7 GS

04-08-2013, 02:50 PM	#21
My5ABaby Sigh..... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (6) Posts: 2,377 Rep Power: 19	Swapping any tranny into an N/A 7 really doesn't make much sense (sans maybe a race car). Just get another N/A tranny, or do a TII tranny swap, and be done with it. It's more than strong enough, and many people run them on turboed cars and have no problems. __________________ 1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."

04-08-2013, 05:32 PM	#22
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	ITS racers usually strip the teeth off 4th gear after a few races.... These are 180rwhp race cars.... __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

10-11-2013, 10:01 PM	#30
silverfdturbo6port 500hp club Join Date: Feb 2011 Location: spokane iTrader: (0) Posts: 79 Rep Power: 14	you will need a t2 flywheel and clutch to run the t2 trans. THat is if the t2 flywheel will fit. Im not sure what the diameter of the rx8 flywheels are. __________________ 500hp AEM EMS RotaryAutomotive street ported Aviation sealed 13b-rew 20B 20BEEST FD 23A 4 rotor Long gone 72 rx3 drag machine