Which LSD to take: Cusco or OS Giken - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

mrbbs · 02-17-2013, 01:32 PM

Hi,

I would like to replace my original LSD with a Cusco or OS Giken one (1.5 way).
Use: fast road trips, hand brake use, rally minded driving on narrow mostly bumpy b-roads

Can you anyone explain difference between Cusco RS or OS Giken Spec S/X?

Thanks!
Kevin

P.S. Will be placing a Cusco 4.81 final drive along.

Grip Ronin · 02-17-2013, 09:24 PM

havent had either but os giken is in alot of competition cars. id pick them

Turdinator · 02-17-2013, 09:33 PM

I have a Cusco RZ in my TA22 Celica and i love it. Smooth engagement but it locks solid when needed.

I haven't driven a car with an OS Giken but i have heard nothing but good things about them. I would have to check but i think they run more friction plates than most other LSDs on the market.

86drift · 02-17-2013, 09:33 PM

Quote:

Originally Posted by mrbbs

Hi,

I would like to replace my original LSD with a Cusco or OS Giken one (1.5 way).
Use: fast road trips, hand brake use, rally minded driving on narrow mostly bumpy b-roads

Can you anyone explain difference between Cusco RS or OS Giken Spec S/X?

Thanks!
Kevin

P.S. Will be placing a Cusco 4.81 final drive along.

Cusco make a 4.556 final drive and have an LSD to suit Toyota 4.875 and 5.125 final drive. I can't find information on a 4.81 one.

I ordered the Cusco 1.5/2 way with 5.125 gears. I'll set it up as 1.5 to start with, then will try it as a 2 way.

mrbbs · 02-18-2013, 01:48 AM

Quote:

Originally Posted by 86drift

Cusco make a 4.556 final drive and have an LSD to suit Toyota 4.875 and 5.125 final drive. I can't find information on a 4.81 one.

I ordered the Cusco 1.5/2 way with 5.125 gears. I'll set it up as 1.5 to start with, then will try it as a 2 way.

Correct, I meant the 4.875 one. What make LSD will you take?

Z3D · 02-18-2013, 02:09 AM

Try some Grateful Dead skulls or some Albert Hoffman 50th Anniversary.

86drift · 02-18-2013, 02:39 AM

Quote:

Originally Posted by mrbbs

Correct, I meant the 4.875 one. What make LSD will you take?

I may be wrong, but that final drive won't work with the OS Giken LSD. Make sure you check before you buy.

I'll take any type of LSD...

mrbbs · 02-18-2013, 03:44 PM

Thanks for the note, I'll pay attention.
I heart the OS Giken LSD will give less understeer while light throttle is applied and will be more progressive with their patented design with more plates.
By this design there also would be less heat in the diff and so also less wear.

Quote:

Originally Posted by 86drift

I may be wrong, but that final drive won't work with the OS Giken LSD. Make sure you check before you buy.

I'll take any type of LSD...

wootwoot · 02-18-2013, 07:08 PM

Quote:

Originally Posted by Z3D

Try some Grateful Dead skulls or some Albert Hoffman 50th Anniversary.

What he said....

mashal · 02-18-2013, 07:17 PM

Quote:

Originally Posted by wootwoot

What he said....

What they said

GT86_PRAGUE · 11-29-2014, 11:10 AM

Quote:

Originally Posted by 86drift

Cusco make a 4.556 final drive and have an LSD to suit Toyota 4.875 and 5.125 final drive. I can't find information on a 4.81 one.

I ordered the Cusco 1.5/2 way with 5.125 gears. I'll set it up as 1.5 to start with, then will try it as a 2 way.

Hi, how that worked out? Thanks...

whataboutbob · 11-29-2014, 02:27 PM

I put the Cusco 1.5RS with a 4.556 final in my Sprintex SC'd automatic twin. The LSD and final drive made a huge difference on the autocross courses. I can get on the throttle so much earlier on corner exit and the final drive really helps the car accelerate more quickly. The final drive change did make it necessary to shift to 3rd on some of the faster sections of the autocross course.

troek · 11-29-2014, 06:48 PM

The csg guys have alot of experience with these. Id talk to them.

TylerLieberman · 11-30-2014, 06:55 PM

I remember my cusco rs 2 way I had in my old s14. Worked very well but was pretty aggressive for daily driving.

Can't go wrong either way in my opinion.

02-17-2013, 01:32 PM	#1
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)	Which LSD to take: Cusco or OS Giken Hi, I would like to replace my original LSD with a Cusco or OS Giken one (1.5 way). Use: fast road trips, hand brake use, rally minded driving on narrow mostly bumpy b-roads Can you anyone explain difference between Cusco RS or OS Giken Spec S/X? Thanks! Kevin P.S. Will be placing a Cusco 4.81 final drive along.

02-17-2013, 09:24 PM	#2
Grip Ronin The Mechanic Join Date: Mar 2012 Drives: Civic Turbo,FR-S Location: NJ Posts: 928 Thanks: 130 Thanked 171 Times in 119 Posts Mentioned: 2 Post(s) Tagged: 1 Thread(s)	havent had either but os giken is in alot of competition cars. id pick them __________________ IG-Joey_Soul Progress Thread Ported billet 20G

11-30-2014, 06:55 PM	#14
TylerLieberman Senior Member Join Date: Dec 2011 Drives: '24 GR86 Location: Arizona Posts: 3,676 Thanks: 655 Thanked 3,344 Times in 1,577 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	I remember my cusco rs 2 way I had in my old s14. Worked very well but was pretty aggressive for daily driving. Can't go wrong either way in my opinion. __________________ Old 2013 FRS Build Thread (SOLD) Hakone 86 GR Build Thread (SOLD)

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Z3D Member Join Date: Jan 2013 Drives: BRZ Location: Massachusetts Posts: 89 Thanks: 38 Thanked 20 Times in 13 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Try some Grateful Dead skulls or some Albert Hoffman 50th Anniversary.

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