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?
03-16-2007, 10:25 PM
#6
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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....
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....
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03-16-2007, 10:39 PM
#7
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....
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 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.
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03-16-2007, 11:14 PM
#8
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
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
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03-16-2007, 11:26 PM
#9
Junior Member
Join Date: Aug 2005
Location: Iowa
Posts: 338
Total Cats: 0
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...
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...
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03-17-2007, 10:57 AM
#11
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.
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.
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03-17-2007, 05:14 PM
#18
is this what you guys are reffering to? It looks to be more expensive than the ACT?
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03-17-2007, 05:32 PM
#20
Former Vendor
Join Date: Jun 2006
Location: Bell Tuning & Performance
Posts: 1,337
Total Cats: -99
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
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
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