Centerforce clutches

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1990BerettaGTZ2.3L
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Centerforce clutches

Postby 1990BerettaGTZ2.3L » Thu Apr 18, 2013 8:14 pm

So I'm taking out a loan for a gtz and the clutch is fried I'm trying to find a good clutch do the car but am having trouble picking one I'm looking at the centerforce clutches on jegs website, I can't decide from a dual friction or a dfx clutch and I have no idea the diameter, he used the factory flywheel in the car and put a w-41 3.94 trans in her need to know what's best and diameter I need and the spline she's a 90 gtz


1990 Beretta GTZ Quad,226 cams, 3.94 W-41 trans
1990 Beretta GTZ Quad 4, 3.61 muncie 5 speed (project)
1968 Chevelle 300 deluxe 327ci 4 speed M-21, 12 bolt 4.10 posi
1978 Chevy K10 Z77 Sport 4x4
1977 GMC Sierra Classic 25 454 crew cab
-Ryan

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Re: Centerforce clutches

Postby Slinky » Thu Apr 18, 2013 9:33 pm

Woody90gtz would have your answers im sure..


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Re: Centerforce clutches

Postby woody90gtz » Thu Apr 18, 2013 11:41 pm

Never tried a Centerforce. And I dont remember off the top of my head, but mine is apart right now so I can get you measurements and a spline count if you need. I got a SPEC 2+ from specclutch.com. But I found this website later on that would have been a little cheaper. Here's a link to a 2+ for you.
http://www.specclutchsuperstore.com/ber ... 16582.html


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91 "SS" 3400/5spd - EP, FFP, TCE, SPEC, DSS, S&S, OBD1, 13s? GEARHEAD dezign

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Re: Centerforce clutches

Postby Cliff8928 » Fri Apr 19, 2013 5:56 am

I had a centerforce in my old GT way back when... The conclusion is that it's nothing special.

The ClutchMasters FX300 in my current GT is great.


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Re: Centerforce clutches

Postby 1990BerettaGTZ2.3L » Fri Apr 19, 2013 6:19 am

I wonder if the quad has a different flywheel


1990 Beretta GTZ Quad,226 cams, 3.94 W-41 trans
1990 Beretta GTZ Quad 4, 3.61 muncie 5 speed (project)
1968 Chevelle 300 deluxe 327ci 4 speed M-21, 12 bolt 4.10 posi
1978 Chevy K10 Z77 Sport 4x4
1977 GMC Sierra Classic 25 454 crew cab
-Ryan

1990BerettaGTZ2.3L
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Re: Centerforce clutches

Postby 1990BerettaGTZ2.3L » Fri Apr 19, 2013 6:20 am

I just said my last comment cause I notice the spec 2 clutch is for the 3.1L call me old school but what the heck does spec mean lmao never heard of it in the muscle car field


1990 Beretta GTZ Quad,226 cams, 3.94 W-41 trans
1990 Beretta GTZ Quad 4, 3.61 muncie 5 speed (project)
1968 Chevelle 300 deluxe 327ci 4 speed M-21, 12 bolt 4.10 posi
1978 Chevy K10 Z77 Sport 4x4
1977 GMC Sierra Classic 25 454 crew cab
-Ryan

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Re: Centerforce clutches

Postby heavywoody » Fri Apr 19, 2013 6:59 am

Quad's do have different flywheels than the V6's do.

And I will second Cliff's nomination for the Clutchmasters unit.


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woody90gtz
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Re: Centerforce clutches

Postby woody90gtz » Fri Apr 19, 2013 7:19 am

The clutch for v6/quad is the same part number. I have always heard Clutchmasters are good, but they are big money too.

SPEC = Star Performance Engineered Clutches. I have them in my Beretta and my Camaro and like them both.

Is this car mostly stock? You may be able to get away with a stock clutch and save some money.


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Re: Centerforce clutches

Postby themixer » Fri Apr 19, 2013 8:32 am

after market excedy, fantastic smooth clutch put about 100,000 miles of hard driving in my old 2.2 5 speed before the transmission broke. I replaced it with another of the exact same brand when put in a new trans.



1990BerettaGTZ2.3L
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Re: Centerforce clutches

Postby 1990BerettaGTZ2.3L » Fri Apr 19, 2013 12:20 pm

Car is not stock mild rebuilt engine in 08 with 226 cams and its completely rebalanced he had the flywheel turned and put a spacer in it, he also put the W-41 3.94 trans in it


1990 Beretta GTZ Quad,226 cams, 3.94 W-41 trans
1990 Beretta GTZ Quad 4, 3.61 muncie 5 speed (project)
1968 Chevelle 300 deluxe 327ci 4 speed M-21, 12 bolt 4.10 posi
1978 Chevy K10 Z77 Sport 4x4
1977 GMC Sierra Classic 25 454 crew cab
-Ryan

1990BerettaGTZ2.3L
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Posts: 740
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Location: Meadville, PA
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Re: Centerforce clutches

Postby 1990BerettaGTZ2.3L » Fri Apr 19, 2013 12:24 pm

Reason I ask for the diameter is because it has 2 different sizes on jegs it has the 8.5" and the 9.125" I might end up goin with a fidanza lightweight flywheel to might as well while its out, who makes w41 chips cause this car is still carry its factory tuned settings with those cams I'm sure she's begging for free'd up power


1990 Beretta GTZ Quad,226 cams, 3.94 W-41 trans
1990 Beretta GTZ Quad 4, 3.61 muncie 5 speed (project)
1968 Chevelle 300 deluxe 327ci 4 speed M-21, 12 bolt 4.10 posi
1978 Chevy K10 Z77 Sport 4x4
1977 GMC Sierra Classic 25 454 crew cab
-Ryan

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Re: Centerforce clutches

Postby MY91GT(Z) » Fri Apr 19, 2013 4:15 pm

talk to racin17 on the quad forums im sure his has a burn for that setup



1990BerettaGTZ2.3L
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Re: Centerforce clutches

Postby 1990BerettaGTZ2.3L » Sun Apr 21, 2013 6:47 am

Waitin on a reply


1990 Beretta GTZ Quad,226 cams, 3.94 W-41 trans
1990 Beretta GTZ Quad 4, 3.61 muncie 5 speed (project)
1968 Chevelle 300 deluxe 327ci 4 speed M-21, 12 bolt 4.10 posi
1978 Chevy K10 Z77 Sport 4x4
1977 GMC Sierra Classic 25 454 crew cab
-Ryan


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