spec clutch. - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 03-16-2007, 09:30 PM   #1
Senior Member
Thread Starter
 
Join Date: Dec 2005
Posts: 1,167
Total Cats: -1
Default spec clutch.

Im looking for the site that has the great deas on the spec stage 2 clutches, I didnt save to my favorites, whats the bast place to buy spec clutches from?
RicanmiataRacer is offline   Reply With Quote
Old 03-16-2007, 09:44 PM   #2
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

Why would you buy a spec after so many people have had troubles with them. The ACTs have pretty much zero bad rap, is it just the $$ difference that makes you want the spec?
cjernigan is offline   Reply With Quote
Old 03-16-2007, 10:02 PM   #3
Senior Member
Thread Starter
 
Join Date: Dec 2005
Posts: 1,167
Total Cats: -1
Default

yes Im a cheap basterd I admit, But you are right, where can I get a good deal on a act then for my 1.8
RicanmiataRacer is offline   Reply With Quote
Old 03-16-2007, 10:42 PM   #4
Senior Member
 
Join Date: Oct 2005
Location: Knoxville
Posts: 1,168
Total Cats: 0
Default

how much is a spec anyway?
Al Hounos is offline   Reply With Quote
Old 03-16-2007, 10:52 PM   #5
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

Stage 3 for 320 ft lbs of torque is $389 MSRP.
Stage 1 for 230 ft lbs is $319.

I'd spend the money and get the ACT.
cjernigan is offline   Reply With Quote
Old 03-16-2007, 11:25 PM   #6
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

so you'd spend the extra money on an act over a spec, but you won't spend more on the name brand timing belt vs an ebay special? :gay:

BTW, I agree. Spend the extra money on the act which is pretty much guaranteed to hold. The spec is iffey in that department. I rather would have had the "stock" pedal feel of the spec, but went with the safe bet ACT. I chose the HD over the XT to get a mild clutch pedal/pressure plate. FM has had a HD on a 300 ftlb car for 40k miles and its holding....
Ben is offline   Reply With Quote
Old 03-16-2007, 11:39 PM   #7
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

Quote:
Originally Posted by Ben View Post
so you'd spend the extra money on an act over a spec, but you won't spend more on the name brand timing belt vs an ebay special? :gay:

BTW, I agree. Spend the extra money on the act which is pretty much guaranteed to hold. The spec is iffey in that department. I rather would have had the "stock" pedal feel of the spec, but went with the safe bet ACT. I chose the HD over the XT to get a mild clutch pedal/pressure plate. FM has had a HD on a 300 ftlb car for 40k miles and its holding....
I decided to buy from mazda as per your recommendation and father's experience from earlier. Guess i didn't post that decision.
I also don't feel that the extra money would be poorly spent on a clutch that doesn't have a bad history of slipping and falling apart compared to the tried and true ACT.
cjernigan is offline   Reply With Quote
Old 03-17-2007, 12:14 AM   #8
Elite Member
iTrader: (7)
 
samnavy's Avatar
 
Join Date: Apr 2006
Location: VIRGINIA BEACH, VA
Posts: 6,020
Total Cats: 175
Default

I think besides me there has been one other person around here who had a problem. That guys problem was catastrophic failure of the disc, but he's the only one I ever heard of that. Other people over at m.net have stories, but I read them and it looks like they're just putting too much power through them.

My problem was that I was pushing 180ftlbs @18psi at 4400rpm and that amount of torque at that low an RPM was overwhelming it. Since I've gotten my boost under control and am only pushing around 12psi, my power delivery is a lot smoother, and the amount of torque I was seeing at 4400, probably isn't being applied now until much later in the power band where the clutch has more clamping power.

Let me put it this way. The old DSM turbo running 18psi overpowered the clutch too early... my new SR20det turbo feels twice as fast and I'm only running about 12psi. I can bang shifts through third no problem, but in fourth and fifth, I've got to ease up on the throttle and make sure the clutch is all the way out before getting back into serious boost.

It is on the ragged edge of being able to hold the power as is. I've gotta tell you, if the old turbo was showing 180ftlbs, this has gotta be near 200ftlbs, it's just that much faster... which is right at the limit of the Spec Stage II which is rated for 240ftlbs at the motor.

I recommend a Spec StageII for sub 200rwhp/180ftlb motors, due the super soft stock pedal effort.
Above that power, it's a tossup between going with an ACT XT, or the Spec StageII 1.8 (don't forget the flywheel). If this current clutch can give me a solid 50k miles, I'll be sticking with Spec and going the 1.8 upgrade... if it fry's next week, I'll be getting the ACT and saying "That's what I should have done in the first place."

Rican, here's the link you're looking for:
http://www.jdsperformance.com/spec.a...iata&fcmd=cars
samnavy is offline   Reply With Quote
Old 03-17-2007, 12:26 AM   #9
Junior Member
 
Join Date: Aug 2005
Location: Iowa
Posts: 338
Total Cats: 0
Default

talk to Gary from TDR...
www.trackdogracing.com

mention my name... he can get you either the SPEC or the ACT
and tell you about them so you can decide which one you need...
Mouglie is offline   Reply With Quote
Old 03-17-2007, 11:56 AM   #10
Senior Member
iTrader: (6)
 
nester's Avatar
 
Join Date: Sep 2005
Location: Houston, TX
Posts: 812
Total Cats: 0
Default

I just bought a stage 4 competition clutch for mine.. we'll see how that works..
nester is offline   Reply With Quote
Old 03-17-2007, 11:57 AM   #11
Senior Member
iTrader: (6)
 
nester's Avatar
 
Join Date: Sep 2005
Location: Houston, TX
Posts: 812
Total Cats: 0
Default

This assembly, available with a double spring, six rivet carriage is good for ease of gear transition with higher horsepower. This disc complimented by a performance pressure plate provides 250% increase in torque capacity.

The 1620 Series kit includes a performance pressure plate, a six puck high torque sprung disc with Ceramic buttons, all applicable bearings, and the appropriate alignment tool.
nester is offline   Reply With Quote
Old 03-17-2007, 12:20 PM   #12
:(
iTrader: (7)
 
Join Date: Jul 2006
Location: nowhere
Posts: 8,281
Total Cats: 2
Default

dude how much did that run ?
magnamx-5 is offline   Reply With Quote
Old 03-17-2007, 12:38 PM   #13
Senior Member
iTrader: (6)
 
nester's Avatar
 
Join Date: Sep 2005
Location: Houston, TX
Posts: 812
Total Cats: 0
Default

They retail for 495. I paid less than that, but I'm a Comp Clutch Wholesale Dealer.

If you interested in any of their clutches, I can get you a price, I just can't post it on the internet.
nester is offline   Reply With Quote
Old 03-17-2007, 12:48 PM   #14
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,910
Total Cats: 1,793
Default

cheapest place ive found for ACT is prostreetonline.com

$265 for a 1.6 HD
$323 for a 1.6 XT
Braineack is offline   Reply With Quote
Old 03-17-2007, 01:10 PM   #15
Senior Member
 
Join Date: May 2005
Location: San Francisco
Posts: 547
Total Cats: 0
Default

I love my spec 2 and got it from ultrarev. call em for better pricing.
turbored is offline   Reply With Quote
Old 03-17-2007, 06:08 PM   #16
Elite Member
iTrader: (5)
 
akaryrye's Avatar
 
Join Date: Jul 2006
Location: Central California
Posts: 2,526
Total Cats: 0
Default

dude i havea spec stage 3 and its great
akaryrye is offline   Reply With Quote
Old 03-17-2007, 06:13 PM   #17
Elite Member
iTrader: (13)
 
cjernigan's Avatar
 
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 6
Default

Hell, i was under the impression that everyone hated them. Sounds like if you get the correctly rated clutch or one step up you'll be fine. My bad guys, sorry for speaking when all the knowledge i had was from reading.
cjernigan is offline   Reply With Quote
Old 03-17-2007, 06:14 PM   #18
Senior Member
iTrader: (1)
 
Join Date: Oct 2006
Location: Burbank, CA
Posts: 536
Total Cats: 0
Default

Quote:
Originally Posted by turbored View Post
I love my spec 2 and got it from ultrarev. call em for better pricing.
http://www.ultrarev.com/SPEC_Stage_3...20-p22021.html

is this what you guys are reffering to? It looks to be more expensive than the ACT?
PaKMaN is offline   Reply With Quote
Old 03-17-2007, 06:20 PM   #19
Senior Member
 
Join Date: May 2005
Location: San Francisco
Posts: 547
Total Cats: 0
Default

i got the spec stage 2 talk to ray at ultrarev and tell him he hooked up your friend and you're looking for a discount too.
turbored is offline   Reply With Quote
Old 03-17-2007, 06:32 PM   #20
Former Vendor
 
Join Date: Jun 2006
Location: Bell Tuning & Performance
Posts: 1,338
Total Cats: -78
Default

Since it is directly related, I thought I would share a recent experience.

I sell, use and recommend ACT. I have a customer that wanted the stock feel of the SPEC 2 clutch. He bought it, had it installed, and it was broken in for 650 miles. The clutch DID NOT hold 7 psi for 50 miles. It began slipping real bad so we pulled the tranny to look at it. Not only were there burn marks on the pressure plate but also the flywheel. The pressure plate had also deformed. It looked like an oval and was also concave shaped. So.... pulled it out and replaced it with a spec3. We are keeping fingers crossed that it works. If not, ACT it is.

I was speaking with a previous Spec dealer and they said that Spec was being investigated for something. Anyone know what that is about? The dealer would not say.
Stephanie
Stephanie Turner 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
Mazdaspeed 2.0L C-Spec ITB motor w/ accessories graexodus Miata parts for sale/trade 9 10-25-2015 04:34 PM
Replacement clutch disc for FM1, or something else altogether? matthewdesigns Suspension, Brakes, Drivetrain 1 10-10-2015 03:07 AM
WTB HPDE miata - Texas Voltwings Cars for sale/trade 0 09-27-2015 07:40 PM
Obligatory "N00B" post! D_Breezy Meet and Greet 5 09-08-2015 06:37 PM


Thread Tools

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 06:40 PM.