Clutch advice

[scotts99snake]

I brought my cobra to the track over the weekend. I tried slicks for the first time and now my clutch is slipping. I have been researching this for quite some time now but need opinions. The car is shy of 600 whp and sees the track a handful of times a year but being mostly street driven I don't want an "on-off" clutch. I have a 26 spline spec stage 3 in my garage, but I am nervous about using it for this reason. I am also not going to spend $1000 on a twin disc clutch. I have read good things on the stage 3+ and also the fidanza 4.3 although the fidanza I have heard complaints of it being "grabby". I am not sure what is in the car now for a clutch as I bought the car used and it doesn't feel stock.

I guess my question would be for a clutch recommendation. Also, if I should replace the flywheel as some manufactures recommend. Any help is appreciated.

 

[onlycodered]

How much torque are you pushing at the flywheel? If you don't know that, what's the torque at the wheels. You can just estimate the flywheel by increasing that number by about 15%. The stage 2 clutches for your car can handle about 510 ft-lbs of torque.

 

[scotts99snake]

How much torque are you pushing at the flywheel? If you don't know that, what's the torque at the wheels. You can just estimate the flywheel by increasing that number by about 15%. The stage 2 clutches for your car can handle about 510 ft-lbs of torque.

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[scotts99snake]

I can't remember exactly what the torque numbers were. 52? at the rear wheels so close to 600 at the flywheel.

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[Noterminator]

Stage 3 Centerforce or Ram. I personally would look into the Ram HD Powergrip. They can handle big power and take a serious beating.

 

[MaximumRisk]

I have had good luck with the Spec 3+. I have used 3 of them and would recommend them

 

[scotts99snake]

Thanks for the replies guys. I am leaning toward the spec stage 3+ right now. I am absolutely upgrading to the 26spine input shaft also. Someone recommended the promotion 650hp clutch to me. Anyone have any experience with those?

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[scotts99snake]

Stage 3 Centerforce or Ram. I personally would look into the Ram HD Powergrip. They can handle big power and take a serious beating.

How is it in terms of drivability? Is it streetable?

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[Noterminator]

The Ram HD stage 3 is also a 650hp rated clutch. Read up on them and ask around. They have a great reputation. They've been used in fox bodies for years and years.

 

[Noterminator]

How is it in terms of drivability? Is it streetable?

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It is streetable. Very firm, but any high performance clutch is going to be. Especially ones with the high power rating capabilities.

 

[scotts99snake]

I started reading on the promotion clutches. Everything I heard was good. I couldn't find one bad story. Great clamping power, no chatter, light petal. I guess their customer service is top notch as well. I think I may go that route now.

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[Noterminator]

Never heard of them. Let us know how it all works out.

 

[dsblk93gt]

Pro Motion makes good quality clutches, I was looking into getting a built T-5 from them and a clutch if I ended up keeping my car. I forgot all about them until you mentioned it.

 

[Timspony]

Get a clutch yet?? ...I did install a new FRPP flywheel

 

[mcallister]

I've got a spec stage 3 and its not bad on the street.

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[scotts99snake]

I bought a ProMotion 650hp clutch kit and a fidanza flywheel. Also installed a 26 spline input shaft for good measure. I am just going to sell the spec stage 3. I think I am going to put it back in the beginning of next week. I can't wait to get it operable again.

 

[Chuckie B]

let me kno when or if ur going to sell the spec 3...my car is under clutched bc the previous owner thought he was only going to port it...then decided to go whipple

 

[scotts99snake]

I installed the clutch kit Monday morning and am now in the process of breaking it in. Although I haven't been able to get on it yet I am very pleased with the feel of the pedal. I can feel it under my foot but doesn't seem like it will be a chore to sit at a traffic light. Another few hundred miles and I will report on how it holds!

 

[1slovert]

i know this post is a little old now but a lot of people seem to be going the route of the Mcleod Twin Disk clutch. The RST isnt too badly priced, I got mine for about $650 but am on the fence about the flywheel I plan on running. Picked up a Fidanza aluminum flywheel but heard there a little tricky with the twin disk. Also picked up a built T3650 from promotion. very pleased with there customer service from them. My car should be up and running soon with a full build thread in the works.

 

[Timspony]

How's the new clutch?