How much can a stock frs transmission take? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Matthew_ · 09-29-2019, 04:48 AM

I don't see too many people talking about the frs transmissions max power, pretty new to it, does anybody know how much max hp and torque it can take reliably?and what you can do to make it more reliable and achieve higher hp and torque?

Spawn_Of_Creation · 09-29-2019, 08:15 AM

Stock manual tranny's are known to break on stock power. Anything above 225-250hp and you need a better clutch. When you do your clutch, do the bearing, aftermarket clutch fork and joint. However hp numbers wise, 300ish supercharged, 350ish turbo is the general rule. Going above 400hp you are probably looking at helical synchromesh or straight cut gearset and carbon fiber syncro rebuild. At this point it's going to be cheaper to do a t56 or cd009 swap.

86MLR · 09-29-2019, 08:24 AM

Rated at 250nm from manufacturer

86TOYO2k17 · 09-29-2019, 11:15 AM

Stock auto rated at 220ft lbs, SSP upgrades to handle 400ft lbs.
Stock manual rated at 184ft lbs, upgrade clutch depending on which you choose can increase rating to about 300ft lbs before your gears “usually 3rd or 4th” will have a much higher likeliness to shear. Also synchros will wear out pretty quickly more power you add. Jacks transmission has some good manual upgrades to handle lots of power.

HaXx · 09-29-2019, 11:32 AM

yeah, trans are rated by torque, not hp.

Matthew_ · 09-29-2019, 09:53 PM

Quote:

Originally Posted by 86TOYO2k17

Stock auto rated at 220ft lbs, SSP upgrades to handle 400ft lbs.
Stock manual rated at 184ft lbs, upgrade clutch depending on which you choose can increase rating to about 300ft lbs before your gears “usually 3rd or 4th” will have a much higher likeliness to shear. Also synchros will wear out pretty quickly more power you add. Jacks transmission has some good manual upgrades to handle lots of power.

Will an oil cooler also help keep the tranny reliable? And possibly allow more torque?

Ultramaroon · 09-29-2019, 10:08 PM

Power has absolutely nothing to do with syncro wear. Poor technique causes all wear beyond that from typical use.

bulldog11267mad · 09-29-2019, 10:16 PM

Quote:

Originally Posted by Matthew_

I don't see too many people talking about the frs transmissions max power, pretty new to it, does anybody know how much max hp and torque it can take reliably?and what you can do to make it more reliable and achieve higher hp and torque?

mine went out on the dyno at 380 torque. transmission was hard to shift sometimes with less than that.

Clutch Dog · 09-29-2019, 10:49 PM

Its a generally accepted notion that anything about 350 ft lbs will break the transmission. Its an Aisin design I believe AZ6 coded. the upgraded internals of the AY6 are about 400 ft lbs capable. But generally speaking we are talkin about clutch dumps with massive sticky tires. if you keep the tires sane it shouldnt be a huge huge issue.

or just keep the car near stock power levels and drive the piss outta it?

Mr.ac · 09-30-2019, 12:09 AM

Quote:

Originally Posted by Matthew_

I don't see too many people talking about the frs transmissions max power, pretty new to it, does anybody know how much max hp and torque it can take reliably?and what you can do to make it more reliable and achieve higher hp and torque?

Simple. Sell pos under powered car. Get any V6/8 sports car.

Clutch Dog · 09-30-2019, 12:32 AM

Quote:

Originally Posted by Mr.ac

Simple. Sell pos under powered car. Get any V6/8 sports car.

literally the ecoboost mustang is your next step up and makes 170 more ft lbs of torque

humfrz · 09-30-2019, 01:15 AM

Quote:

Originally Posted by Matthew_

I don't see too many people talking about the frs transmissions max power, pretty new to it, does anybody know how much max hp and torque it can take reliably?and what you can do to make it more reliable and achieve higher hp and torque?

Welcome to our forum, Matthew_ -

Yep, shift smoothly and apply the power through the transmission gradually.

And that don't cost nutten.

humfrz

humfrz · 09-30-2019, 01:18 AM

Quote:

Originally Posted by Mr.ac

Simple. Sell pos under powered car. Get any V6/8 sports car.

Don't you have any Civic Type Rs to sell him -

humfrz

Matthew_ · 09-30-2019, 02:59 AM

Quote:

Originally Posted by Clutch Dog

Its a generally accepted notion that anything about 350 ft lbs will break the transmission. Its an Aisin design I believe AZ6 coded. the upgraded internals of the AY6 are about 400 ft lbs capable. But generally speaking we are talkin about clutch dumps with massive sticky tires. if you keep the tires sane it shouldnt be a huge huge issue.

or just keep the car near stock power levels and drive the piss outta it?

It's an awesome car, I don't want crazy power out of it, I just want a little more juice, I drive the piss out of it stock as is with just suspension and beefier tires.

09-29-2019, 04:48 AM	#1
Matthew_ Member Join Date: Aug 2019 Drives: 2014 scion frs Location: CA Posts: 11 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	How much can a stock frs transmission take? I don't see too many people talking about the frs transmissions max power, pretty new to it, does anybody know how much max hp and torque it can take reliably?and what you can do to make it more reliable and achieve higher hp and torque?

09-29-2019, 08:15 AM	#2
Spawn_Of_Creation Human Join Date: Jan 2016 Drives: 2015 BRZ Black Location: Dallas, TX Posts: 208 Thanks: 105 Thanked 102 Times in 67 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Stock manual tranny's are known to break on stock power. Anything above 225-250hp and you need a better clutch. When you do your clutch, do the bearing, aftermarket clutch fork and joint. However hp numbers wise, 300ish supercharged, 350ish turbo is the general rule. Going above 400hp you are probably looking at helical synchromesh or straight cut gearset and carbon fiber syncro rebuild. At this point it's going to be cheaper to do a t56 or cd009 swap. __________________ "Always listen to experts. They'll tell you what can't be done, and why. Then do it." - The Notebooks of Lazarus Long Last edited by Spawn_Of_Creation; 09-29-2019 at 08:34 AM.

09-29-2019, 08:24 AM	#3
86MLR Senior Member Join Date: Aug 2018 Drives: 2002 VX Commodore SS LS1 Auto Location: Sydney Posts: 2,203 Thanks: 500 Thanked 2,185 Times in 1,111 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	Rated at 250nm from manufacturer __________________ Disclaimer: This post represents the official views of the voices in my head at the time of posting. http://www.ft86club.com/forums/showthread.php?t=133311 I'm only here for the biscuits

09-29-2019, 10:08 PM	#7
Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,395 Thanks: 53,053 Thanked 37,228 Times in 19,308 Posts Mentioned: 1117 Post(s) Tagged: 9 Thread(s)	Power has absolutely nothing to do with syncro wear. Poor technique causes all wear beyond that from typical use. __________________ service manuals

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Stock Automatic Transmission torque capacity	Toyota86.ir	Engine, Exhaust, Transmission	0	01-13-2016 01:20 PM
Ranking of Transmission Mods from Stock	ajcarson11	Engine, Exhaust, Transmission	17	09-28-2015 09:10 PM
Transmission Stock Capacity	504	Engine, Exhaust, Transmission	15	12-02-2014 09:06 PM
Stock AISSIN Transmission Power Capacity	Don@Accelerated	Forced Induction	37	07-03-2013 11:15 PM
Manual transmission FR-S in-stock	scioneric	Dealer Cars	1	01-09-2013 08:26 PM

09-29-2019, 11:15 AM	#4
86TOYO2k17 Senior Member Join Date: Jan 2018 Drives: 2017 toyota 86 Location: PNW Posts: 2,131 Thanks: 336 Thanked 1,189 Times in 781 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	Stock auto rated at 220ft lbs, SSP upgrades to handle 400ft lbs. Stock manual rated at 184ft lbs, upgrade clutch depending on which you choose can increase rating to about 300ft lbs before your gears “usually 3rd or 4th” will have a much higher likeliness to shear. Also synchros will wear out pretty quickly more power you add. Jacks transmission has some good manual upgrades to handle lots of power.

09-29-2019, 11:32 AM	#5
HaXx Member Join Date: Dec 2017 Drives: jrsc_brz Location: boston Posts: 965 Thanks: 726 Thanked 676 Times in 337 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	yeah, trans are rated by torque, not hp.

09-29-2019, 10:49 PM	#9
Clutch Dog Senior Member Join Date: Jan 2019 Drives: 2017 BRZ PP , 2005 Saab 97X Location: CA Posts: 1,052 Thanks: 754 Thanked 721 Times in 405 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Its a generally accepted notion that anything about 350 ft lbs will break the transmission. Its an Aisin design I believe AZ6 coded. the upgraded internals of the AY6 are about 400 ft lbs capable. But generally speaking we are talkin about clutch dumps with massive sticky tires. if you keep the tires sane it shouldnt be a huge huge issue. or just keep the car near stock power levels and drive the piss outta it?

User Name		Remember Me?
Password