follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Speed By Design
Register Garage Community Calendar Today's Posts Search

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > Engine, Exhaust, Transmission

Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.

Register and become an FT86Club.com member. You will see fewer ads

Reply
 
Thread Tools Search this Thread
Old 10-09-2013, 11:41 AM   #15
ft86me
Senior Member
 
ft86me's Avatar
 
Join Date: Feb 2013
Drives: 2013 FRS
Location: Endor
Posts: 1,231
Thanks: 802
Thanked 349 Times in 212 Posts
Mentioned: 60 Post(s)
Problem solved. Thanks everybody!!!
ft86me is offline   Reply With Quote
Old 10-09-2013, 11:44 AM   #16
staycrushing
Senior Member
 
staycrushing's Avatar
 
Join Date: May 2012
Drives: A Hot Mess
Location: SO CAL
Posts: 199
Thanks: 22
Thanked 150 Times in 67 Posts
Mentioned: 22 Post(s)
I am running a kaaz 1.5way with 255 Toyo R1R.

the driving experience is AMAZING.

I took it up to big bear to test it out and the drive up was epic.
__________________
one of the first people to ruin the frs.
staycrushing is offline   Reply With Quote
The Following User Says Thank You to staycrushing For This Useful Post:
ft86me (10-09-2013)
Old 10-09-2013, 11:44 AM   #17
SubiePig
Senior Member
 
Join Date: Apr 2013
Drives: -'02 PSM WRX, '94 Miata, '13 BRZ
Location: Lafayette, Louisiana
Posts: 438
Thanks: 188
Thanked 155 Times in 112 Posts
Mentioned: 13 Post(s)
A diff will change the way the car puts the power to the ground and in the case of a 1.5 or 2 way change the corner entry characteristics of the car as well, if setup properly take advantage of the grip that's available. A 1.5 way would be the way to go for a track car. Depending on power levels and setup it could be setup for your application based on power and driving style. Here's a good article to read.
http://www.motoiq.com/MagazineArticl...ferential.aspx

Then this one goes more in depth.
http://www.motoiq.com/MagazineArticl...co-RS-LSD.aspx
__________________

Sponsered by:Chasebays/Corr Performance Tuning/KartBoy/Bad Panda Motorsports/Racer-X Fabrication
STX Build thread 14th/67 SCCA Nationals (2014)
SubiePig is offline   Reply With Quote
The Following User Says Thank You to SubiePig For This Useful Post:
ft86me (10-09-2013)
Old 10-09-2013, 11:50 AM   #18
G-Man
Senior Member
 
G-Man's Avatar
 
Join Date: Mar 2012
Drives: 1980 corvette, 2014 Subaru BRZ
Location: the colony
Posts: 366
Thanks: 217
Thanked 141 Times in 98 Posts
Mentioned: 5 Post(s)
Garage
Quote:
Originally Posted by ft86me View Post
Problem solved. Thanks everybody!!!
what did you do to solve your problem?
G-Man is offline   Reply With Quote
Old 10-09-2013, 11:59 AM   #19
rice_classic
Senior Member
 
rice_classic's Avatar
 
Join Date: Jun 2012
Drives: Nevermorange FRS
Location: Seattle, WA
Posts: 4,175
Thanks: 758
Thanked 4,215 Times in 1,809 Posts
Mentioned: 78 Post(s)
Quote:
Originally Posted by ft86me View Post
Problem solved. Thanks everybody!!!
It doesn't appear as if you got much help here. You should have posted in the "tracking/autox/hpde" subforum.

The Torsen LSD in this car is quite good and due to the nature of its function it actually works better when you throw bigger/grippier tires at the rear end. However, the Torsen LSD won't distribute power when a tire is in the air or on an extremely slippery surface (oil/snow and water to an extent).

If you like the way the Torsen LSD ramps up, it's smooth application but you want a greater distribution of load between the axles and you want to eliminate it's short coming when a tire is airborne then you should consider a WAVETRAC rear differential. It's a mechanical worm gear LSD (torsen style) with internal ramp plates that still provide lock up when a wheel is lifted. It's literally the best of both worlds.

The other option that works really well is to go for a clutch plate LSD that is 1.5 way. Typically the Clutch Plate LSD's are going to provide a higher percentage of torque distribution vs an OEM torsen option. They also remained locked when a tire is airborne and with a 1.5 way you get the full percentage of lock under accel and 50% of lock (or thereabouts) under decel which can help with balance.

If you are a track-only setup or you don't care about a little chatter at low speed daily driving than I would say go for a 1.5way Clutch Plate setup like Cusco or KAAZ.
__________________
PRO86 | WTCC | STL
rice_classic is offline   Reply With Quote
The Following 2 Users Say Thank You to rice_classic For This Useful Post:
ft86me (10-09-2013), SubiePig (10-09-2013)
Old 10-09-2013, 12:02 PM   #20
ft86me
Senior Member
 
ft86me's Avatar
 
Join Date: Feb 2013
Drives: 2013 FRS
Location: Endor
Posts: 1,231
Thanks: 802
Thanked 349 Times in 212 Posts
Mentioned: 60 Post(s)
Quote:
Originally Posted by rice_classic View Post
It doesn't appear as if you got much help here. You should have posted in the "tracking/autox/hpde" subforum.

The Torsen LSD in this car is quite good and due to the nature of its function it actually works better when you throw bigger/grippier tires at the rear end. However, the Torsen LSD won't distribute power when a tire is in the air or on an extremely slippery surface (oil/snow and water to an extent).

If you like the way the Torsen LSD ramps up, it's smooth application but you want a greater distribution of load between the axles and you want to eliminate it's short coming when a tire is airborne then you should consider a WAVETRAC rear differential. It's a mechanical worm gear LSD (torsen style) with internal ramp plates that still provide lock up when a wheel is lifted. It's literally the best of both worlds.

The other option that works really well is to go for a clutch plate LSD that is 1.5 way. Typically the Clutch Plate LSD's are going to provide a higher percentage of torque distribution vs an OEM torsen option. They also remained locked when a tire is airborne and with a 1.5 way you get the full percentage of lock under accel and 50% of lock (or thereabouts) under decel which can help with balance.

If you are a track-only setup or you don't care about a little chatter at low speed daily driving than I would say go for a 1.5way Clutch Plate setup like Cusco or KAAZ.
Thanks for the input. Should've posted in there. Thanks!! Very helpful.
ft86me is offline   Reply With Quote
Old 10-09-2013, 12:29 PM   #21
wparsons
Senior Member
 
wparsons's Avatar
 
Join Date: Jul 2012
Drives: 2013 Asphalt FR-S Manual
Location: Whitby, ON, Canada
Posts: 6,716
Thanks: 7,875
Thanked 3,353 Times in 2,134 Posts
Mentioned: 99 Post(s)
Garage
Beating the dead horse some more, unless you're lighting up the inside tire when putting power down exiting a corner a different LSD isn't going to do a single thing to improve grip.

If you have too stiff of a RSB you can end up three wheeling and as soon as the inside tire gets too light you'll send all the power to it. If that's your issue, then a clutch or hybrid LSD will help, but the real issue there is too stiff of a RSB, not the LSD.
__________________
Light travels faster than sound, so people may appear to be bright until you hear them speak...
flickr
wparsons is offline   Reply With Quote
Old 10-09-2013, 06:54 PM   #22
G-Man
Senior Member
 
G-Man's Avatar
 
Join Date: Mar 2012
Drives: 1980 corvette, 2014 Subaru BRZ
Location: the colony
Posts: 366
Thanks: 217
Thanked 141 Times in 98 Posts
Mentioned: 5 Post(s)
Garage
Quote:
Originally Posted by rice_classic View Post
It doesn't appear as if you got much help here. You should have posted in the "tracking/autox/hpde" subforum.
I think there was a lot of feedback but its more of a XY problem(That is, you are trying to solve problem X, and you think solution Y would work, but instead of asking about X when you run into trouble, you ask about Y.) he just wanted more grip(from what i could tell) and there are plenty of better and cheaper ways to get that instead of just getting a new LSD. and the "I was TOLD" kinda of brought the need of a LSD in question, he could have been told by someone that didn't know the car already had one for all we knew.

more information of why would have really helped get to the answer was best not just an info dump on LSD's. I am still really curious what solved his solution and what the real cause of the problem was.
G-Man is offline   Reply With Quote
Old 10-09-2013, 07:52 PM   #23
rice_classic
Senior Member
 
rice_classic's Avatar
 
Join Date: Jun 2012
Drives: Nevermorange FRS
Location: Seattle, WA
Posts: 4,175
Thanks: 758
Thanked 4,215 Times in 1,809 Posts
Mentioned: 78 Post(s)
If a fat man walks into my burger shop as asks for a burger I'm not going to sell him dieting advice, I'm going to sell him a burger.
__________________
PRO86 | WTCC | STL
rice_classic is offline   Reply With Quote
The Following User Says Thank You to rice_classic For This Useful Post:
Ranatsu (10-10-2013)
Old 10-11-2013, 02:08 AM   #24
Corner3garage
Senior Member
 
Corner3garage's Avatar
 
Join Date: Apr 2013
Drives: FR-S & BRZ
Location: Laguna Hills, CA
Posts: 2,716
Thanks: 205
Thanked 120 Times in 93 Posts
Mentioned: 31 Post(s)
To us os giken is unbeatable.

quiet for the street and perfect lockup for the track.

Its pricey but definitely worth it.
Corner3garage is offline   Reply With Quote
 
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Italian mafia vs. Russian mafia vs. Yakuza vs. Triad vs. Mexican drug cartels tranzformer Off-Topic Lounge [WARNING: NO POLITICS] 27 02-08-2012 03:22 PM


All times are GMT -4. The time now is 07:50 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2026 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.