Re: best affordable clutch assembly street/strip ???
[Re: RTSE4ME]
#821262
10/04/10 11:44 AM
10/04/10 11:44 AM
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Joined: Sep 2009
Posts: 105 Florida, USA.
john e
member
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member
Joined: Sep 2009
Posts: 105
Florida, USA.
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I'm a big fan of the Hay's Street & Strip. The last S&S pressure plate I had for over 20 years and it was still working great when I sold the car. Went through 3 discs in that time and the Hay's disc lasted the longest and worked the best.
Street racing is a mystery to most people, but I've got it figured out. If it blows up with a single 4, go dual quads. If that goes, inject it. And fix it fast.
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Re: best affordable clutch assembly street/strip ???
[Re: jcastle1]
#821263
10/12/10 11:35 PM
10/12/10 11:35 PM
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Joined: Apr 2003
Posts: 964 Cincinnati,Ohio
jcastle1
OP
super stock
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OP
super stock
Joined: Apr 2003
Posts: 964
Cincinnati,Ohio
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Thanks for all the replies! I checked out the Sachs,these may be a great setup,but unless you know the part numbers,nobody is willing to help you! I called the sams place,since that sounded interesting,but after several attempts,could not get anyone to answer the phone. Finally called Wes,@ Mancini Racing and received a Centerforce dual friction setup today. (even answered on the first ring)! Thanks again for helping, John
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Re: best affordable clutch assembly street/strip ???
[Re: 68LAR]
#821265
10/13/10 10:59 AM
10/13/10 10:59 AM
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Joined: Nov 2004
Posts: 7,647 Houston Texas
PAINT IT BLACK
Got a CHIP on my shoulder
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Got a CHIP on my shoulder
Joined: Nov 2004
Posts: 7,647
Houston Texas
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Quote:
You won't be dissappointed. Just remember to remove the "over center" spring under the dash and to install a clutch "return" spring from the fork to the bellhousing and you'll be good to go.
Why are you supposed to remove the over center spring?
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Re: best affordable clutch assembly street/strip ???
[Re: PAINT IT BLACK]
#821266
10/13/10 11:37 AM
10/13/10 11:37 AM
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Joined: Jan 2003
Posts: 5,467 So Cal
Sinitro
master
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master
Joined: Jan 2003
Posts: 5,467
So Cal
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Quote:
Quote:
You won't be dissappointed. Just remember to remove the "over center" spring under the dash and to install a clutch "return" spring from the fork to the bellhousing and you'll be good to go.
Why are you supposed to remove the over center spring?
Because.. Diaphragm spring clutches maintain higher clamp load than lever style clutches throughout the service life of the clutch. As disc friction material wears, clamp load increases during the first half of clutch life before decreasing gradually to its original level. Diaphragm spring clutches require less pedal effort the further the pedal is actuated, reducing stress on release system components. When replacing a coil spring clutch with a diaphragm spring, always remove over-center or release-assist springs. Designed to reduce the higher pedal effort associated with coil spring clutches, over-center springs may overcompensate when a diaphragm spring clutch is installed. This can result in a very soft pedal and, in some cases, a pedal will go to the floor and stay there.
Next question..
Just my $0.02...
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Re: best affordable clutch assembly street/strip ???
[Re: 5spdcuda]
#821269
10/13/10 01:47 PM
10/13/10 01:47 PM
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Joined: Jan 2003
Posts: 5,467 So Cal
Sinitro
master
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master
Joined: Jan 2003
Posts: 5,467
So Cal
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Quote:
This issue has been commented on many times in previous posts regarding clutches. My experience has been that early diaphragm clutches especially factory GM stuff in the '60's were notorious for hanging up usually at high rpm. This was at least partly due to an overcenter condition. Not hard to understand when you consider that a diaphragm spring is basically a big belleville washer. Since I happen to like a light pedal effort and since some sort of spring is needed anyway in order to prevent the throwout bearing from riding on the clutch fingers I prefer to keep the overcenter spring in place and use an adjustable pedal stop on the clutch pedal. If you do this you can have best of both worlds; ie. light pedal effort and no hanging up of the clutch.
Agreed.. Early diaphragm clutches were not reliable and could not take the horsepower.. However... Since I am ole school I still prefer the B&B 3 finger pressure plate..
Just my $0.02...
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Re: best affordable clutch assembly street/strip ???
[Re: 5spdcuda]
#821271
10/13/10 02:25 PM
10/13/10 02:25 PM
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Joined: Oct 2003
Posts: 4,016 South Park, Pa.
68LAR
master
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master
Joined: Oct 2003
Posts: 4,016
South Park, Pa.
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Quote:
This issue has been commented on many times in previous posts regarding clutches. My experience has been that early diaphragm clutches especially factory GM stuff in the '60's were notorious for hanging up usually at high rpm. This was at least partly due to an overcenter condition. Not hard to understand when you consider that a diaphragm spring is basically a big belleville washer. Since I happen to like a light pedal effort and since some sort of spring is needed anyway in order to prevent the throwout bearing from riding on the clutch fingers I prefer to keep the overcenter spring in place and use an adjustable pedal stop on the clutch pedal. If you do this you can have best of both worlds; ie. light pedal effort and no hanging up of the clutch.
This issue has indeed been discussed many times in the past, and as I have stated many times in the past, based on real life experience and using a CFDF for over 8 years, The clutch pedal DOES NOT stick to the floor at high rpm shifts. Unless you concider 6500 -6800rpm shifts low rpm. The CFDF works much better with the "over center" spring removed. The CFDF is NOT old school technology. Over the past 42 years of driving and racing my car, the Centerforce has without exception, been the best set up I've tried. If you doubt any of what I say, you should come to the track on a day that I am racing. It'll make a believer out of you.
4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight
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Re: best affordable clutch assembly street/strip ???
[Re: omnicrazy]
#821275
10/14/10 10:55 AM
10/14/10 10:55 AM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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Hayes street/strip clutch wouldn't hold the torque of my big block with street tires in the street.
went with a CFDF and been happy with it so far.
**Photobucket sucks**
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