What power/torque can the OEM box handle? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

smudge · 05-13-2016, 11:51 AM

As per the title really, just wondering if anyone knows the limitations to the OEM manual gearbox?

freerunner · 05-13-2016, 12:14 PM

I remember reading about 280Nm. Don't know where exactly. Probably in the transmission carnage thread.

smudge · 05-13-2016, 12:43 PM

Quote:

Originally Posted by freerunner

I remember reading about 280Nm. Don't know where exactly. Probably in the transmission carnage thread.

That's the auto trans surely? I know the manual can handle more than that

humfrz · 05-13-2016, 01:33 PM

As much as an FA20 engine will put out ...... if you shift slowly and ease on the power ......

humfrz

Lynxis · 05-13-2016, 01:57 PM

Quote:

Originally Posted by smudge

That's the auto trans surely? I know the manual can handle more than that

~205 ft lb of torque at the flywheel for the 6MT sounds about right to me. I know of guys who were making 205 ft lb at the wheels blew their transmission at the tail end of a season of track days. They'd be making a bit more at the flywheel but I suspect it wouldn't be more than say 230.

Yes it was a track car so it was a worst case scenario for the transmission but the rated power output assumes that.

It's also my understanding that the auto handles big power better than the manual does.

mrk1 · 05-13-2016, 10:12 PM

How long are you looking for it to last? thats the real question. It really comes down to how you use it.

05-13-2016, 11:51 AM	#1
smudge Senior Member Join Date: Feb 2015 Drives: Supercharged GT86 Location: UK Posts: 287 Thanks: 75 Thanked 163 Times in 85 Posts Mentioned: 4 Post(s) Tagged: 2 Thread(s)	What power/torque can the OEM box handle? As per the title really, just wondering if anyone knows the limitations to the OEM manual gearbox?

05-13-2016, 10:12 PM	#6
mrk1 Senior Member Join Date: Mar 2013 Drives: Sterling BRZ Ltd Location: New England Posts: 1,702 Thanks: 403 Thanked 1,389 Times in 671 Posts Mentioned: 21 Post(s) Tagged: 2 Thread(s)	How long are you looking for it to last? thats the real question. It really comes down to how you use it. __________________ The Build Thread GT28RS - eBoost2 - 3.91 Final Drive - Supra LSD

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05-13-2016, 12:14 PM	#2
freerunner Senior Member Join Date: Jun 2015 Drives: GT86 Location: Germany Posts: 142 Thanks: 141 Thanked 41 Times in 34 Posts Mentioned: 3 Post(s) Tagged: 2 Thread(s)	I remember reading about 280Nm. Don't know where exactly. Probably in the transmission carnage thread.

05-13-2016, 01:33 PM	#4
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 30,432 Thanks: 29,826 Thanked 32,845 Times in 16,844 Posts Mentioned: 715 Post(s) Tagged: 2 Thread(s)	As much as an FA20 engine will put out ...... if you shift slowly and ease on the power ...... humfrz

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