Rear End/Gear/Differential Ratio - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

fly2low · 01-24-2013, 05:34 PM

It seems to me that the focus has been to extra more ponnies out of the engine.

It surprises me that nobody/tuner tries to do the old trick of swapping the rear end gears into something more aggressive. Any tuning houses out there care to address this? I am just curious.

For me, for this kind of car, rear gears swap + lightweight flywheel/pulley could be simple upgrades of a very fun car. Thanks.

mact · 01-24-2013, 06:06 PM

1st gear doesn't sound very fun with a higher FD than the car already has.

philstar · 01-24-2013, 10:18 PM

there is definitely a few options on the market now, 4.3, 4.5, and higher

That TRD Griffon model that laps Tsukuba in the 1:01 range has a 4.8 FD.

I totally agree with you, its the route I plan to take, higher final drive, light flywheel, FUN FUN FUN!

Opposed · 01-24-2013, 10:27 PM

Yep, 4.77's in my S2k was super fun.

OrbitalEllipses · 01-24-2013, 10:51 PM

Quote:

Originally Posted by fly2low

It seems to me that the focus has been to extra more ponnies out of the engine.

It surprises me that nobody/tuner tries to do the old trick of swapping the rear end gears into something more aggressive. Any tuning houses out there care to address this? I am just curious.

For me, for this kind of car, rear gears swap + lightweight flywheel/pulley could be simple upgrades of a very fun car. Thanks.

@Racecomp Engineering has the Cusco 1st, 2nd, and FD I think.

86drift · 01-25-2013, 01:22 AM

Cusco have an LSD which will take 5.1 gears. That should add some go.

WatchmaN · 01-25-2013, 05:20 PM

Got some here,
http://ft86speedfactory.com/drivetra...9a12509ebc25f7

seven · 01-25-2013, 06:51 PM

Quote:

Originally Posted by fly2low

It seems to me that the focus has been to extra more ponnies out of the engine.

It surprises me that nobody/tuner tries to do the old trick of swapping the rear end gears into something more aggressive. Any tuning houses out there care to address this? I am just curious.

For me, for this kind of car, rear gears swap + lightweight flywheel/pulley could be simple upgrades of a very fun car. Thanks.

It surprises you because you might not have been looking hard enough

There's a few options for rear gears on the market now. I'd say

for some of them.

fly2low · 01-26-2013, 05:46 AM

Guilty as charged. Still researching the car before deciding to pull the trigger. What I know now is i like the car from my 3 test drives. I also know that from the characteristics of the engine, i probably wont do FI. So i thought I d go with gearing and light pulley or flywheel maybe cams. I searched the forum and didnt find any discussions on gearing. I appreciate the links, and even more links. Thanks

mrbbs · 02-09-2013, 12:53 PM

Can anyone help me to find where I can order the Cusco 4.875 final drive?

01-24-2013, 05:34 PM	#1
fly2low Member Join Date: Jan 2013 Drives: Yes, I drive Location: Beautiful Southern California Posts: 36 Thanks: 0 Thanked 5 Times in 4 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Rear End/Gear/Differential Ratio It seems to me that the focus has been to extra more ponnies out of the engine. It surprises me that nobody/tuner tries to do the old trick of swapping the rear end gears into something more aggressive. Any tuning houses out there care to address this? I am just curious. For me, for this kind of car, rear gears swap + lightweight flywheel/pulley could be simple upgrades of a very fun car. Thanks. __________________ 2013 Lexus GS350, 2013 VW Touareg, 2003 Mitsubishi Evolution, 2007 Triumph Daytona 675

01-24-2013, 06:06 PM	#2
mact Senior Member Join Date: Feb 2012 Drives: 13 GTI Location: WI Posts: 416 Thanks: 119 Thanked 204 Times in 97 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	1st gear doesn't sound very fun with a higher FD than the car already has. __________________

01-24-2013, 10:18 PM	#3
philstar Senior Member Join Date: Jan 2012 Drives: Argento FR-S Location: Chicago, IL Posts: 436 Thanks: 59 Thanked 349 Times in 144 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	there is definitely a few options on the market now, 4.3, 4.5, and higher That TRD Griffon model that laps Tsukuba in the 1:01 range has a 4.8 FD. I totally agree with you, its the route I plan to take, higher final drive, light flywheel, FUN FUN FUN! __________________

01-24-2013, 10:27 PM	#4
Opposed Senior Member Join Date: Jun 2012 Drives: 2013 Asphalt FR-S Location: Bloomington, MN Posts: 1,156 Thanks: 499 Thanked 447 Times in 294 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Yep, 4.77's in my S2k was super fun. __________________ Asphalt FR-S: EcuTek Visconti STG2 tune, MAPerformance turbo kit, MAPerformance 3" exhaust, Hotchkis springs, Mach-V 17x9 Awesomes. Build thread: http://www.ft86club.com/forums/showthread.php?t=30703

01-25-2013, 05:20 PM	#7
WatchmaN Senior Member Join Date: Jul 2012 Drives: the girls crazy Location: Anjou Posts: 276 Thanks: 160 Thanked 95 Times in 69 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Got some here, http://ft86speedfactory.com/drivetra...9a12509ebc25f7 __________________ Vortech SC(314hp/226tq), Perrin pully, Tanabe strut tower bar, Perrin exhaust, LP Tune, hsd coilovers, DTC-60 fr, hp+rear),track rubber RS3 and Continental :-), Forester oem oil cooler,Custom brake cooling kit. Driveway lab rear diffuser, Wasp front spliter, TRD canard/fenders.

01-25-2013, 01:22 AM	#6
86drift Join Date: Jun 2012 Drives: Toyota 86 GT Location: Sydney, Australia Posts: 517 Thanks: 85 Thanked 263 Times in 147 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	Cusco have an LSD which will take 5.1 gears. That should add some go.

01-26-2013, 05:46 AM	#9
fly2low Member Join Date: Jan 2013 Drives: Yes, I drive Location: Beautiful Southern California Posts: 36 Thanks: 0 Thanked 5 Times in 4 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Guilty as charged. Still researching the car before deciding to pull the trigger. What I know now is i like the car from my 3 test drives. I also know that from the characteristics of the engine, i probably wont do FI. So i thought I d go with gearing and light pulley or flywheel maybe cams. I searched the forum and didnt find any discussions on gearing. I appreciate the links, and even more links. Thanks __________________ 2013 Lexus GS350, 2013 VW Touareg, 2003 Mitsubishi Evolution, 2007 Triumph Daytona 675

02-09-2013, 12:53 PM	#10
mrbbs Member Join Date: Feb 2013 Drives: GT86 Location: belgium Posts: 52 Thanks: 3 Thanked 22 Times in 7 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Can anyone help me to find where I can order the Cusco 4.875 final drive?

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