CSP Limited Slip Differential choice - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Race Prep Miata race-only chat.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 10-16-2012, 02:09 PM   #1
Newb
Thread Starter
iTrader: (1)
 
Join Date: Feb 2011
Posts: 16
Total Cats: 0
Default CSP Limited Slip Differential choice

The autocross season is just finishing here in the great frozen north of upstate NY. My car is a 90 with a 2003 engine. Currently installed is a 94 differential housing with matching driveshaft and axles along with an RX7 clutch type LSD that feels a little weak. I also have, already on the shelf, a like new Type I torsen. I will be installing a 4.30 gear set so my diff housing will already be apart. My question is, should I rebuild the clutch type LSD or install the torsen? I know about the OS Giken but my short term plan will be to use one of the differentials that I already own. The car is dedicated for autocross use.
gregcuda is offline   Reply With Quote
Old 10-16-2012, 02:13 PM   #2
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,356
Total Cats: 1,322
Default

Rx7 differentials suck. Install the Torsen if you must, but get an OS Giken into the car as soon as you can. It makes a huge difference.
Savington is offline   Reply With Quote
Old 10-16-2012, 02:38 PM   #3
Elite Member
 
Join Date: Jul 2005
Location: Anacortes, WA
Posts: 2,476
Total Cats: 114
Default

FWIW this year’s national champion car in CSP and CSPL was using a stock Torsen. I still think I prefer the OS Giken though. The RX7 diffs I have driven were not near as smooth and predictable.

Bob
bbundy is offline   Reply With Quote
Old 10-17-2012, 09:56 AM   #4
Elite Member
iTrader: (1)
 
Leafy's Avatar
 
Join Date: Jun 2012
Location: NH
Posts: 9,091
Total Cats: 90
Default

Bob pretty much nailed it. I just helped adjust the sister car OS Geiken. Wasn't to difficult, hopefully the adjustment will get rid of the on throttle push issue. I like the torsen, as long as your setup keeps both rear wheels on the ground always its not a massive step down from a factory setup geiken. No comment on the RX7 diff.
Leafy is offline   Reply With Quote
Old 10-18-2012, 08:22 AM   #5
Senior Member
iTrader: (1)
 
Join Date: Jan 2011
Location: Chattanooga, Tn
Posts: 1,038
Total Cats: 157
Default

Until someone beats Scott Fraiser(CSP National Champion) with a OSG....I would say save your money, use the torsen and spend the $1,600 on driving the car.
TNTUBA is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1994 Spec Miata Race Car SM/SM2/SSM For Sale Quinn Cars for sale/trade 6 10-23-2016 08:58 AM
[CT] 1999 Mazda Miata 10th Anniversary Edition - $5800 Jike Spingleton Cars for sale/trade 3 09-20-2016 05:33 PM
Prepping my '95 for track asmasm Build Threads 82 05-26-2016 05:37 PM
91 Celica manual trans, is this fucked? Onyxyth Insert BS here 1 09-19-2015 08:27 PM
Mystery Engine Trouble. Halp, mt.net! vehicular General Miata Chat 12 09-14-2015 04:17 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:00 PM.