FA20 Stock Capacity - Page 5 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Kronos · 12-02-2014, 01:09 AM

Quote:

Originally Posted by Grip Ronin

I believe the fa20T is a bit tougher from the heavier weighted internals. FA20 pistons coming in at 311.2g, rods being 346.8g and cap at 112.3g.
The fa20T pistons being 360g, rods coming in at 370.9g and cap at 120.7g. As per Tomei not my own observations.

That's a good bit of info. I had no idea

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s2d4 · 12-02-2014, 01:25 AM

Or is it because the NA needs higher/free rev response so they've done more engineering to shave the weight on the internals?

Grip Ronin · 12-02-2014, 02:04 PM

Quote:

Originally Posted by s2d4

Or is it because the NA needs higher/free rev response so they've done more engineering to shave the weight on the internals?

Its probably both. Less cost for less material too
.

Caspeed · 12-05-2014, 07:35 PM

Quote:

Originally Posted by Reaper

One of them is on stock tires too. Syncros failed.

Synchro failure has nothing to do with power or torque. Their sole purpose is to match gear speeds while shifting.

86SPEED · 12-05-2014, 08:00 PM

Stock block C38 KW supercharger at 19 psi, should be over 400hp, it gets dyno next week.. should be because the other KW C38 was doing 408 at 16 psi and i easily pulled on him.. both on E85 he had over 10k miles until a meeting with a K barrier ended everything, im over 5k so far no issues

Thomas

Reaper · 12-05-2014, 08:17 PM

Quote:

Originally Posted by Caspeed

Synchro failure has nothing to do with power or torque. Their sole purpose is to match gear speeds while shifting.

Your barking up the wrong tree. I have a case open pending legal action right now about a failed syncro warranty claim that was denied because a dealer claimed it was because of hp. I'm fully aware hp doesn't kill syncros.

Caspeed · 12-06-2014, 10:44 AM

What is failing in the boxes that you have replaced?

Reaper · 12-06-2014, 02:46 PM

I either shear 4th gear, or a syncro goes out. I've seen/replaced transmissions in other cars for a sheared 4th gear and a worn out 5th syncro and a worn out 2nd gear syncro. Same problems as me/fullblown/element tuning/don/synack and the list goes on.

Reaper · 12-06-2014, 02:48 PM

I'm running an oil cooler now but I don't see temps hot enough for it to turn on.

blown · 12-09-2014, 12:40 PM

http://www.synchrotech-transmissions..._Synchros.html

maybe these guys can make some synchros for our gearbox?

Reaper · 12-09-2014, 02:39 PM

Quote:

Originally Posted by blown

http://www.synchrotech-transmissions..._Synchros.html

maybe these guys can make some synchros for our gearbox?

You'll still shear 4th gear off
And most of those are single cone honda replacements. Hence why they don't make one for the ap1 triple cone. It would cost more then what I paid for a used transmission.

Pkush · 12-09-2014, 04:37 PM

Quote:

Originally Posted by Reaper

Your barking up the wrong tree. I have a case open pending legal action right now about a failed syncro warranty claim that was denied because a dealer claimed it was because of hp. I'm fully aware hp doesn't kill syncros.

I would love to get an update on how that turns out!

blown · 12-09-2014, 05:11 PM

Quote:

Originally Posted by Reaper

You'll still shear 4th gear off
And most of those are single cone honda replacements. Hence why they don't make one for the ap1 triple cone. It would cost more then what I paid for a used transmission.

how much wheel tq do you have?

raven1231 · 12-09-2014, 05:17 PM

Quote:

Originally Posted by blown

how much wheel tq do you have?

build thread shows 379

12-02-2014, 01:25 AM	#58
s2d4 Senior Member Join Date: Mar 2013 Drives: R32 GTR, AW11 MR2 SC, GTS86 R Location: OZ Posts: 2,615 Thanks: 603 Thanked 1,224 Times in 708 Posts Mentioned: 35 Post(s) Tagged: 0 Thread(s)	Or is it because the NA needs higher/free rev response so they've done more engineering to shave the weight on the internals? __________________

12-06-2014, 02:46 PM	#64
Reaper in orbe terrum non visi Join Date: Jan 2014 Drives: violent Location: Mountains Posts: 1,747 Thanks: 279 Thanked 762 Times in 446 Posts Mentioned: 62 Post(s) Tagged: 1 Thread(s)	I either shear 4th gear, or a syncro goes out. I've seen/replaced transmissions in other cars for a sheared 4th gear and a worn out 5th syncro and a worn out 2nd gear syncro. Same problems as me/fullblown/element tuning/don/synack and the list goes on. __________________ I have E85 where there isn't E85, that's my secret. http://www.ft86club.com/forums/showt...t=reaper+build

12-06-2014, 02:48 PM	#65
Reaper in orbe terrum non visi Join Date: Jan 2014 Drives: violent Location: Mountains Posts: 1,747 Thanks: 279 Thanked 762 Times in 446 Posts Mentioned: 62 Post(s) Tagged: 1 Thread(s)	I'm running an oil cooler now but I don't see temps hot enough for it to turn on. __________________ I have E85 where there isn't E85, that's my secret. http://www.ft86club.com/forums/showt...t=reaper+build

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12-05-2014, 08:00 PM	#61
86SPEED Senior Member Join Date: May 2013 Drives: The silvertrooper 10 series Location: Las Vegas Posts: 1,671 Thanks: 1,072 Thanked 665 Times in 376 Posts Mentioned: 158 Post(s) Tagged: 3 Thread(s)	Stock block C38 KW supercharger at 19 psi, should be over 400hp, it gets dyno next week.. should be because the other KW C38 was doing 408 at 16 psi and i easily pulled on him.. both on E85 he had over 10k miles until a meeting with a K barrier ended everything, im over 5k so far no issues Thomas

12-09-2014, 12:40 PM	#66
blown Senior Member Join Date: Sep 2014 Drives: ft86 Location: ft86 Posts: 232 Thanks: 3 Thanked 25 Times in 21 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	http://www.synchrotech-transmissions..._Synchros.html maybe these guys can make some synchros for our gearbox?

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