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Twin disc metal surface clutch driving tips? by California Kid
Started on: 06-14-2019 08:16 AM
Replies: 9 (510 views)
Last post by: 2.5 on 08-15-2019 10:35 AM
California Kid
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Report this Post06-14-2019 08:16 AM Click Here to See the Profile for California KidSend a Private Message to California KidEdit/Delete MessageReply w/QuoteDirect Link to This Post
Hey all,

Work is nearly done on the California Kid. After taking out the faulty ancient alarm system that was causing the blinking issue, all that's left is to do is reassemble the interior and change the serpentine belt. Then it will move under it's own power for the first time in nearly 6 years.

Despite driving manuals for most of my adult life, Dad never let me have a go in the Kid because of the Quartermaster twin disc metallic surface clutch he had installed. He loved dropping the hammer at stop lights and was tired of replacing sprung clutches every year, so he went to a clutch that is not listed as "streetable".

Anyways between that and my desire to not break the car, I'm soliciting advice. Dad said the pedal is "On/Off" and you cannot slip it. I know Dad learned how not to snap necks at stop lights because I rode with him, but he did not share his secret...

Does anyone street a clutch like this or was my old man crazy for doing it in the first place?

D
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fierofool
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Report this Post06-14-2019 08:22 AM Click Here to See the Profile for fierofoolClick Here to visit fierofool's HomePageSend a Private Message to fierofoolEdit/Delete MessageReply w/QuoteDirect Link to This Post
I think I can see some body work in the future if you get caught in stop and go traffic.
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Tony Kania
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Report this Post06-14-2019 12:49 PM Click Here to See the Profile for Tony KaniaSend a Private Message to Tony KaniaEdit/Delete MessageReply w/QuoteDirect Link to This Post
It is in your DNA.
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fieroguru
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Report this Post06-14-2019 05:01 PM Click Here to See the Profile for fieroguruSend a Private Message to fieroguruEdit/Delete MessageReply w/QuoteDirect Link to This Post
I would swap it out for a spec stage 4+ for improved drivability. It is a solid hub clutch and will hold the power and be easy to drive.

If you have to stick with the dual clutch setup, try to run 1 organic disc and 1 sintered metal. The organic disc should help smooth out the engagement.
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hyperv6
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Report this Post06-17-2019 08:47 PM Click Here to See the Profile for hyperv6Send a Private Message to hyperv6Edit/Delete MessageReply w/QuoteDirect Link to This Post
Well to answer your question here is what I have found.

A true duel disc racing clutch is one where you just kind of have to do a quick release. There is no easy slipping transition.

The one I drove was in a Howe Late Model Sportsman Stock Car. You just get the revs up and kind of dump the clutch. You learn the sweet sport to where you get it sonit engages but no wheel spin or stall.

There are some duel clutch street clutches now from Ram that are much easier and smoother to use,
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Will
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Report this Post08-14-2019 09:25 AM Click Here to See the Profile for WillSend a Private Message to WillEdit/Delete MessageReply w/QuoteDirect Link to This Post
Last time I asked, Tilton would sell you a pack with one organic and one cerametallic disk.
Quartermaster would sell you a pack with two organic disks.
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2.5
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Report this Post08-14-2019 11:17 AM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
One "trick" I can think of is maybe get the idle rpm set at a high enough rpm so if you let the clutch out without pushing the gas pedal it wont die.
Just to add: I don't know the details of this car.
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Patrick
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Report this Post08-14-2019 04:26 PM Click Here to See the Profile for PatrickSend a Private Message to PatrickEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by 2.5:

One "trick" I can think of is maybe get the idle rpm set at a high enough rpm so if you let the clutch out without pushing the gas pedal it wont die.


Idle speeds of 5000 RPM aren't recommended.

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motoracer838
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Report this Post08-14-2019 11:55 PM Click Here to See the Profile for motoracer838Send a Private Message to motoracer838Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Patrick:

Idle speeds of 5000 RPM aren't recommended.



Joe
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2.5
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Report this Post08-15-2019 10:35 AM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Patrick:

Idle speeds of 5000 RPM aren't recommended.


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