Differential decisions - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Fastbrz · 10-04-2014, 03:52 AM

Trying to pick between a 1.5 and 2 way differential for road racing/ auto x the car will also be driven on the street. Any help would be appreciated.

@CSG Mike

CSG Mike · 10-04-2014, 12:52 PM

1 or 1.5 way; 2 way is typically reserved for drifting.

Fastbrz · 10-04-2014, 05:28 PM

Quote:

Originally Posted by CSG Mike

1 or 1.5 way; 2 way is typically reserved for drifting.

Would you happen to know what the cusco differential is rated for and or other brands you would recommend for high hp use?

CSG Mike · 10-04-2014, 10:24 PM

Quote:

Originally Posted by Fastbrz

Would you happen to know what the cusco differential is rated for and or other brands you would recommend for high hp use?

We share diffs with a MKIV Supra; unless you're making power up in 2JZ range, don't worry about the diff. You have other things that will break first (e.g. axles)

cdrazic93 · 10-05-2014, 12:49 AM

Quote:

Originally Posted by CSG Mike

We share diffs with a MKIV Supra; unless you're making power up in 2JZ range, don't worry about the diff. You have other things that will break first (e.g. axles)

Is that because of the design? Im just curious as to know why FBM would offer the 8.8 ford rear end for our cars when 2JZ 'range' is like 800-1000whp

CSG Mike · 10-05-2014, 02:20 AM

Quote:

Originally Posted by cdrazic93

Is that because of the design? Im just curious as to know why FBM would offer the 8.8 ford rear end for our cars when 2JZ 'range' is like 800-1000whp

Parts bin... it's on a LOT of Toyotas.

Why they offer it? Because people will buy it.

I wouldn't put 800whp though the stock rear diff though.

Fastbrz · 10-05-2014, 02:22 AM

@CSG Mike

What version of the cusco lsd do you recommend?

CSG Mike · 10-05-2014, 02:28 AM

Quote:

Originally Posted by Fastbrz

@CSG Mike

What version of the cusco lsd do you recommend?

What kind of power level?
Tires?
Suspension?
Driver experience level?

You can't go wrong with a Cusco RS or OS Giken.

Fastbrz · 10-05-2014, 02:37 AM

Quote:

Originally Posted by CSG Mike

What kind of power level?
Tires?
Suspension?
Driver experience level?

You can't go wrong with a Cusco RS or OS Giken.

Tarmac 2 coil overs, apr gt250 wing,
Perrin Steering Rack Lock
GrimmSpeed Master Cylinder Brace
Perrin Front Control Arm Brace
Perrin PSRS - Offset
Perrin Rear Endlinks
Perrin Urethane Front Endlinks
Perrin Transmission Support Mount
Whiteline Positive Traction Kit
Essex Sprint brake kit

Driving experience- 1 track day or otherwise amateur

Tires proxes r888 -3 camber front -2 rear, slight toe in rear

Engine- gtx2867 with meth injection. Not finalized but around 400whp

Fastbrz · 10-05-2014, 02:44 AM

Other mods include

Wheels k57 CCW front- 18x10 +13 offset. Rear 18x11 -13mm

Rocket bunny kit v2

Sparco EVO seats

Rear seat delete
cipher 5 point harness
Essex harness bar
Exedy twin disk
Mishmoto oil cooler
Aquamist meth injection kit
Perrin header back system
Ft86speedfactory lightweight battery kit
DeatSchwerks fuel pump
SeibonCarbon fiber hood DV style
Aero catch hood pins
AEM guages

CSG Mike · 10-05-2014, 03:27 AM

You'll be fine with the type RS. PM us for a quote

10-04-2014, 03:52 AM	#1
Fastbrz Senior Member Join Date: Sep 2014 Drives: Wrb brz Location: Texas Posts: 152 Thanks: 12 Thanked 32 Times in 17 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Differential decisions Trying to pick between a 1.5 and 2 way differential for road racing/ auto x the car will also be driven on the street. Any help would be appreciated. @CSG Mike

10-05-2014, 02:44 AM	#10
Fastbrz Senior Member Join Date: Sep 2014 Drives: Wrb brz Location: Texas Posts: 152 Thanks: 12 Thanked 32 Times in 17 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Other mods include Wheels k57 CCW front- 18x10 +13 offset. Rear 18x11 -13mm Rocket bunny kit v2 Sparco EVO seats Rear seat delete cipher 5 point harness Essex harness bar Exedy twin disk Mishmoto oil cooler Aquamist meth injection kit Perrin header back system Ft86speedfactory lightweight battery kit DeatSchwerks fuel pump SeibonCarbon fiber hood DV style Aero catch hood pins AEM guages Last edited by Fastbrz; 10-05-2014 at 02:58 AM.

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10-04-2014, 12:52 PM	#2
CSG Mike Join Date: Jul 2012 Drives: S2000 CR Location: Orange County Posts: 14,564 Thanks: 8,942 Thanked 14,213 Times in 6,856 Posts Mentioned: 970 Post(s) Tagged: 14 Thread(s)	1 or 1.5 way; 2 way is typically reserved for drifting.

10-05-2014, 02:22 AM	#7
Fastbrz Senior Member Join Date: Sep 2014 Drives: Wrb brz Location: Texas Posts: 152 Thanks: 12 Thanked 32 Times in 17 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	@CSG Mike What version of the cusco lsd do you recommend?

10-05-2014, 03:27 AM	#11
CSG Mike Join Date: Jul 2012 Drives: S2000 CR Location: Orange County Posts: 14,564 Thanks: 8,942 Thanked 14,213 Times in 6,856 Posts Mentioned: 970 Post(s) Tagged: 14 Thread(s)	You'll be fine with the type RS. PM us for a quote

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