Spec clutch and Fidanza flywheel - Miata Turbo Forum -Boost cars, acquire cats.

Welcome to Miataturbo.net   Members

949Racing - Miata Accessories 949 Racing 20601 Canada Rd Suite A Lake Forest, CA 92630-8100

LinkBack Thread Tools Search this Thread
Old 04-20-2008, 09:40 PM   #1
Junior Member
Thread Starter
Join Date: Mar 2008
Location: Hawaii
Posts: 53
Total Cats: 0
Default Spec clutch and Fidanza flywheel

I am saving up for the stage 2. Best price around, but I haven't been able to find any opinions on them. Any experiences?
2kBlk is offline   Reply With Quote
Old 04-20-2008, 09:59 PM   #2
Elite Member
iTrader: (7)
samnavy's Avatar
Join Date: Apr 2006
Posts: 5,820
Total Cats: 145

I've got one... about 10k miles so far.
If you search some of my past threads on it, you'll see I had some really bad luck upon initially installing it. It held good for about 1k miles and then started slipping really badly over 8psi or once it got hot. I dealt with it for a long time and cursed the name Spec.

When I installed my new motor, I found that I had 2 hot spots on the PP and a clear uneven wear line on the disc. I decided to reinstall it anyways in case the problems I were having were due to install error.

I made sure I was VERY CAREFUL and methodical in my install. All of the flywheel and PP bolts were installed in a crosswise pattern at 5lb increments. I lubed everything very carefully and overall was simply very ---- about it. It's been holding 14-15psi for the last 2k miles. I just did an auto-x school. At one point I did about 20 laps in a row, EXTREMELY hard launches and shifting and it held like a champ.

It has stock (or even better) pedal feel, great modulation, great holding... since the re-install, I'm a believer.
samnavy is offline   Reply With Quote
Old 04-20-2008, 10:16 PM   #3
Elite Member
iTrader: (14)
Join Date: Mar 2006
Location: Edmonton, AB
Posts: 4,922
Total Cats: 0

I echo Sam's comments. My Spec (1.6l) stage 2 is excellent. I have a Spec light weight flywheel as well. If I were buying a new clutch, I'd opt for the stage 2+ in 1.8l and skip the flywheel.
jayc72 is offline   Reply With Quote
Old 04-23-2008, 03:45 PM   #4
Junior Member
Thread Starter
Join Date: Mar 2008
Location: Hawaii
Posts: 53
Total Cats: 0

This is good to hear!
2kBlk is offline   Reply With Quote
Old 05-01-2008, 11:11 AM   #5
Join Date: Sep 2007
Posts: 27
Total Cats: 0

Are the Specs really that good? I got a Stage 2+ for my 200-215 RWHP SC'd track car 2 years ago. Here are the facts.

Spec Stage 2+ clutch
Torque rating: 300 ft-lbs
Friction Material: Kevlar on one side, Carbon Fiber on the other.
Original Friction Disk Thickness: 0.310"
Current Friction Disk Thickness: 0.293"
Permitted Disk Wear: .020" - .025"

That leaves me with .003" - .008" of life left. Let's assume .003" for worst case. I've got 20 track weekends on the clutch - no ideas what mileage that represents. Plus I drove it to events the first year. The car sees no street time to speak of.

.017/20=.00085" wear per event.
.003/.00085=3.5 events remaining.

Do I A) replace just the material disk? B)replace the whole clutch?

Is this kind of life comparable to what some of you other guys are getting? The car is only putting out ~180 ft-lbs of torque, but it does get used hard 100% of the time.

Is this is a crappy life span? I would have thought with the over rated application and tougher materials it would have lasted longer.

rrroadster is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 52 08-28-2016 04:18 AM
1994 Spec Miata Race Car SM/SM2/SSM For Sale Quinn Cars for sale/trade 5 11-21-2015 01:03 PM
ACT race clutch and AASCO 7lb. aluminum flywheel graexodus Miata parts for sale/trade 5 10-26-2015 01:48 PM
Are my coils failing? viriiguy General Miata Chat 5 09-28-2015 07:39 PM
WTB HPDE miata - Texas Voltwings Cars for sale/trade 0 09-27-2015 06:40 PM

spec, wear

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 On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 10:04 PM.