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

SPEC stage3+

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Old Jan 11, 2007 | 07:15 PM
  #1  
woody80z28's Avatar
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Joined: Nov 2004
Posts: 33
From: Walton, NY
SPEC stage3+

Who has it? Do you like it? What kind of power are you making?

I'm planning on this clutch with Spec's retrofit flywheel for my SBC with about 400hp and maybe a 100 shot soon. Will be running 4.10s with slicks for the track.

This is a snippet of my email with a Spec guy:
Absolutely. We have the most advanced pull-type unit on the market.
There
is no benefit to going back to conventional push-type, other than we (or
the
other manufacturer) would have to sell you a conversion hydraulic
throwout
bearing. I prefer to have the external hydraulic slave and fork like
the
stock setup, as if the slave ever had to be changed it takes 5 minutes
instead of 2+ hours (the trans can stay in) .
The pull type is lighter and allows for an additional .5inch plate face
diameter over the push type alternative. We build the same clamp load
in
the pull as can be put in the push, so no performance advantage exists
with
the push. If you were to ever build an engine to turn over 10K rpm, the
pull would shift better.
Since you already have the flywheel (if you don't we make it in
rebuildable
billet steel and rebuildable billet aluminum), I would go with stage 2+,
3
or 3+. Each is good for the street, hold more power than you would be
putting down with the nitrous, and wear extremely well. Is this a daily
driver, weekend/track car or strictly track car?
The st2+ and st3+ both drive very nicely. The st3 ends up being a
decent
street clutch, but not until a good 500-700 breakin miles. There is no
doubt the st2+ and 3+ are the best options, but people often by the st3
because it is less expensive.
Either + clutch will cover your power, but the st3+ is the flagship. We
offer 1050 high carbon billet steel and billet aluminum versions. On
slicks
with yours mods you will be happier with the steel. The CF is WAY too
heavy
..it is really a crank and engine bearing killer. You'll lose hp with
it.
Our billet steel is closer to the weight of a stock type LT1 steel wheel
but
much stronger , designed to be resurfaced MULTIPLE times for extra long
life, yet weighs a little less for some hp gain without detrimental
inertia
loss. If you bought the complete package you'd get a race bolt kit free
and
15% off. The flywheel list is 329..less with the disoucnt. This is the
only flywheel on the market machined to a .001 tolerance. There is a
lot of
nice machine work on it , too...almost too pretty to install.....!
Old Jan 11, 2007 | 07:31 PM
  #2  
john35thss's Avatar
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Joined: Mar 2003
Posts: 239
From: Caledon Ont Canada
3+ here, 660 rwhp 10.72. Love my spec have had it in the car 1 season np.

John
Old Jan 11, 2007 | 09:54 PM
  #3  
woody80z28's Avatar
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Joined: Nov 2004
Posts: 33
From: Walton, NY
That's what I like to hear.
Old Feb 28, 2007 | 03:51 PM
  #4  
cmroSS97's Avatar
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Joined: Mar 2004
Posts: 235
From: parsippany nj
ttt
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