Vendors: "Built" Aisin 6MT Discussion - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

tech4pdx · 10-01-2013, 12:59 AM

FT86Club Vendors.. I'm sure many of you have been following the forums closely for quite some time. I have noticed a significant number of owners who have been inquiring (or commenting) about the quality and strength of the Aisin 6MT on these cars. On one hand, we are talking about guys who are heavily modified and wanting strength/reliability. On the other hand, we have those who are not heavily modified but still experiencing issues with reliability. I can't speak for everyone else, but what options (if any) can be had for building out a stronger and more reliable OEM unit? If not, what other options are feasible and reasonable?

I don't want this to be a discussion about warranty. Some of us have thrown the warranty out the window.

EvilBeaverFace · 10-01-2013, 05:33 AM

Somewhat related (other options), some on page 1, mostly page 2 - You've probably seen it so this can be for others checking the thread.

http://www.ft86club.com/forums/showthread.php?t=44765

tech4pdx · 10-01-2013, 07:12 PM

Ok, so the Tremec TKO. Can we have a discussion on it? What would it take to swap this in? Cost? Custom bellhousing? Compatibility with stock driveshaft, shifter mechanism, reverse lockout, etc? Modifications to interior (if any)? Is there a vendor willing to build kits to order?

I'm finding it hard to believe that little if anything on this subject is to be had from this forum.

mike the snake · 10-01-2013, 08:25 PM

I think that's because no one has modified their car to the extent of needing a full-tilt-boogie race transmission.

The only one's I've seen are the drift cars with sequential boxes. You might inquire in the racing/track/AX forum here.

504 · 10-01-2013, 08:34 PM

Has anyone considered cryogenic treatment? It sounds like an excellent way to strengthen the transmission for a relatively low cost without adding after market internals

mike the snake · 10-01-2013, 08:47 PM

That, and adding a pump and cooler will greatly help the transmission handle constant high loads, like seen on the track.

It won't help with drag racing or huge power duno runs, but keeping the heat down helps keep things together.

Turdinator · 10-01-2013, 10:33 PM

Have there been many people breaking the g/box? I have only heard of one and it was on a highly modded car (500 - 600RWHP) and it broke when the car landed after being airborn.

Dephective · 10-01-2013, 10:40 PM

Cryo treating the gears are your best bet. I know the local high powered STi's do it because of their shit gearboxes. Pretty much the cheapest route you are gonna get. You can do engine internals as well if you ever decide to go that route. Makes things pretty stout.

tech4pdx · 10-01-2013, 11:23 PM

Quote:

Originally Posted by 504

Has anyone considered cryogenic treatment? It sounds like an excellent way to strengthen the transmission for a relatively low cost without adding after market internals

I've considered cryo on this car and I have had a few parts on my old WS6 done, but I'm really interested to hear what the aftermarket has in store for an upgraded synchromesh transmission. Sequential transmission is pointless on the street. I'm not making anywhere near enough torque to break the stock transmission, but it would be nice to know that there are options for when I do. I'm planning another power upgrade in spring and I want to overbuild. If no vendors have this on their plate, I'm going to be looking at something custom locally.

tech4pdx · 10-01-2013, 11:24 PM

Quote:

Originally Posted by Turdinator

Have there been many people breaking the g/box? I have only heard of one and it was on a highly modded car (500 - 600RWHP) and it broke when the car landed after being airborn.

I've heard that Don at Accelerated did, but haven't spoken to him to discuss details.

DoctorNick · 10-02-2013, 05:53 PM

Are most of the guys in the tuner challenge just using the stock box then, eh?

wparsons · 10-03-2013, 12:33 PM

Quote:

Originally Posted by tech4pdx

I've heard that Don at Accelerated did, but haven't spoken to him to discuss details.

IIRC he bent a shift fork or something, not even a stripped/shattered gear.

JerryMichaels7 · 10-03-2013, 12:49 PM

Thought the title of his last post was, along the lines of how to shred 3rd gear.

Stock AISSIN Transmission Power Capacity
How much do you think a stock trans will hold before you shear third gear?

Thats what it was...and then he left the forums never to be heard of again...

Rocket.BRZ · 05-31-2014, 08:59 AM

Bump

10-01-2013, 12:59 AM	#1
tech4pdx Make love Join Date: Nov 2012 Drives: H8R.. Not really Location: Edge of the Milky Way Posts: 780 Thanks: 524 Thanked 214 Times in 143 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	Vendors: "Built" Aisin 6MT Discussion FT86Club Vendors.. I'm sure many of you have been following the forums closely for quite some time. I have noticed a significant number of owners who have been inquiring (or commenting) about the quality and strength of the Aisin 6MT on these cars. On one hand, we are talking about guys who are heavily modified and wanting strength/reliability. On the other hand, we have those who are not heavily modified but still experiencing issues with reliability. I can't speak for everyone else, but what options (if any) can be had for building out a stronger and more reliable OEM unit? If not, what other options are feasible and reasonable? I don't want this to be a discussion about warranty. Some of us have thrown the warranty out the window.

10-01-2013, 10:40 PM	#8
Dephective Senior Member Join Date: Mar 2013 Drives: '13 Whiteout FRS Location: Bay Area, Florida Posts: 233 Thanks: 110 Thanked 79 Times in 58 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Cryo treating the gears are your best bet. I know the local high powered STi's do it because of their shit gearboxes. Pretty much the cheapest route you are gonna get. You can do engine internals as well if you ever decide to go that route. Makes things pretty stout. __________________ Previous: '01 Accord-daily '93 Rx7-fire breathing track monster 545hp 397tq 2300lb. '06 Mazdaspeed6 one helluva love-hate relationship

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10-01-2013, 07:12 PM	#3
tech4pdx Make love Join Date: Nov 2012 Drives: H8R.. Not really Location: Edge of the Milky Way Posts: 780 Thanks: 524 Thanked 214 Times in 143 Posts Mentioned: 31 Post(s) Tagged: 0 Thread(s)	Ok, so the Tremec TKO. Can we have a discussion on it? What would it take to swap this in? Cost? Custom bellhousing? Compatibility with stock driveshaft, shifter mechanism, reverse lockout, etc? Modifications to interior (if any)? Is there a vendor willing to build kits to order? I'm finding it hard to believe that little if anything on this subject is to be had from this forum.

10-01-2013, 08:25 PM	#4
mike the snake Senior Member Join Date: Jul 2013 Drives: 2013 BRZ Location: Norcal Posts: 1,592 Thanks: 1 Thanked 623 Times in 378 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	I think that's because no one has modified their car to the extent of needing a full-tilt-boogie race transmission. The only one's I've seen are the drift cars with sequential boxes. You might inquire in the racing/track/AX forum here.

10-01-2013, 08:34 PM	#5
504 Senior Member Join Date: Feb 2013 Drives: 2014 86 GTS Location: Sydney, Australia Posts: 168 Thanks: 131 Thanked 85 Times in 57 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Has anyone considered cryogenic treatment? It sounds like an excellent way to strengthen the transmission for a relatively low cost without adding after market internals

10-01-2013, 08:47 PM	#6
mike the snake Senior Member Join Date: Jul 2013 Drives: 2013 BRZ Location: Norcal Posts: 1,592 Thanks: 1 Thanked 623 Times in 378 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	That, and adding a pump and cooler will greatly help the transmission handle constant high loads, like seen on the track. It won't help with drag racing or huge power duno runs, but keeping the heat down helps keep things together.

10-02-2013, 05:53 PM	#11
DoctorNick Senior Member Join Date: Feb 2011 Drives: '13 BRZ Location: Chicago, Il. Posts: 118 Thanks: 17 Thanked 51 Times in 33 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Are most of the guys in the tuner challenge just using the stock box then, eh?

10-03-2013, 12:49 PM	#13
JerryMichaels7 Senior Member Join Date: Mar 2013 Drives: Whiteout FRS Location: South, Ga Posts: 348 Thanks: 19 Thanked 144 Times in 80 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Thought the title of his last post was, along the lines of how to shred 3rd gear. Stock AISSIN Transmission Power Capacity How much do you think a stock trans will hold before you shear third gear? Thats what it was...and then he left the forums never to be heard of again...

05-31-2014, 08:59 AM	#14
Rocket.BRZ Banned Join Date: May 2014 Drives: 2010 WRX (sold) 2013 brz Location: my mind Posts: 345 Thanks: 6 Thanked 113 Times in 89 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	Bump

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