Drivetrain Clutch, Torque Converter, Transmission, Driveline, Axles, Rear Ends

Spec 4 --to much for the streets???

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Old May 7, 2006 | 03:51 PM
  #1  
detroit1994z28's Avatar
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Spec 4 --to much for the streets???

Looking into the spec 4 clutch. Spec states that this clutch is to aggressive for street driving. I really dont drive my car everyday. Mostly on the weekends. Just wondering if the clutch would be to aggressive for the streets. I want to avoid spec 3 because of the springs and problems with them. So I wanted to hear information from members who has had them or running them in there cars right now. Is the spec 5 more aggressive?? Also How long do the spec 4 /5 clutches last for with normal driving and little abuse here and there?
Old May 7, 2006 | 04:20 PM
  #2  
5.0THIS's Avatar
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From: Colorado
Re: Spec 4 --to much for the streets???

I have a SPEC 4. It probably still isnt fully broken in yet, but it isnt that bad IMO... reverse sucks, and taking off from a dead stop takes some getting used to (there is some chattering).. but once moving it is like driving a stocker...
Old May 7, 2006 | 05:08 PM
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From: Alaska
Re: Spec 4 --to much for the streets???

I have a Spec 4. I love it. My friend drove my car and he says its very streetable. I drive my car pretty much everyday. It just takes some getting used to. But I wouldnt consider it non streetable.

Mine just broke yesterday though. I am in the process of pulling my tranny out to take a look at it and see what exactly broke. I am having a hell of a time getting that damn spline shaft to come out.
Old May 7, 2006 | 06:55 PM
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detroit1994z28's Avatar
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Re: Spec 4 --to much for the streets???

I never really had a aftermarket clutch before - always the stock clutch. Did you guys notice a huge difference in the way the clutch grabs. Also I can re-use my stock flywheel with the spec 4 correct?? Just need it resurfaced. I'm thinking either a spec 4 or spec 5.
Old May 7, 2006 | 07:05 PM
  #5  
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From: Alaska
Re: Spec 4 --to much for the streets???

Yes, and Yes. I resurfaced my stock flywheel and it has worked great until yesterday. I cant get the tranny input spline to remove from the clutch or I would let you know if it was the clutch that went bad or if it was something tranny related.

But I have been VERY pleased with the clutch. It grabs really well, but since its hydraulic it doesnt make it hard to depress. I just have to get my REV's up to about 1300RPM in order to take off from a stop or else it will stall. I also have a BIG cam, GM847. So that may be why I have to rev it up so much. But really, 1300rpm seems not all that much to me. I have the kevlar disc and it broke in excellent, there is zero chatter. If this clutch is bad I would actually look into going with a Spec 5.
Old May 7, 2006 | 07:11 PM
  #6  
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From: Cortland NY
Re: Spec 4 --to much for the streets???

I love my spec 4, I honestly couldnt tell alot of difference from the stock clutch.
Old May 7, 2006 | 09:54 PM
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From: Dobson, NC
Re: Spec 4 --to much for the streets???

Its very diff. Thats all i can say as for my thoughts. Is it streetable? I think it is but every persons opion varys. Its like asking some people there idea of a street car.
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