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Old 04-23-2002, 01:29 PM   #1
Chris Stein
Scooby Newbie
Member#: 13959
Join Date: Jan 2002
Location: Chesterfield, CT
2000 2.5RS
Silverthorn Metallic

Default Clarifying function of 5zigen twin mode clutch

The following is excerpted from the description of the 5Zigen Twin Mode clutch on the Takakaira web site (http://www.takakaira.com/php/template.php3?id=185&cat=2).

This excerpt gives the impression that the Twin Mode converts to sequential shifting in addition to automatically actuating the clutch:

"Depressing the switch turns the system on, and the transmission will act like a clutch-less shifter, where each push of the gear knob will raises a gear, and each pull of the gear knob will knock down a gear."

On this assumption, I was all set to lay out the $$ so I called 5Zigen-USA who provided me with the name of an authorized dealer - Motorsports Dynamics in CA.

Henry Chung of Motorsports Dynamics first asserted and later confirmed that the Twin Mode ONLY performs the clutch actuation. The driver still shifts using the original H pattern - no sequential shifting.

His email response is as follows:
i spoke to the people in japan, as well as my friend who has used the system, and both parties confirm what i have already told you. that is the twin mode clutch system only operates the clutch engagement/dis-engagement by use of an electrically controlled switch. I am sorry for the
mis-leading explanation on the taika-kaira page, but that information is totally incorrect.

If anyone has any substantive information to the contrary, I'd be interested in hearing about it. Otherwise, I hope that this saves others some time and effort in following up on the Twin Mode, only to find out that it isn't a sequential shifter.


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Old 04-23-2002, 01:53 PM   #2
Scooby Specialist
Member#: 2918
Join Date: Nov 2000
Location: Simi Valley, CA, USA
2002 Impreza WRX
Silver Sedan


Good to hear confirmation, but I've always assumed it was still using the standard H pattern. Kinda like the new clutchless shifting MR2 Spyder.
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Old 04-23-2002, 09:41 PM   #3
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Chapter/Region: SCIC
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02 duburu arr exu


hrm...still its quite an appealing system. i wonder if its still possible to double clutch with the system on
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Old 04-24-2002, 12:58 AM   #4
Dynamic Uno
Member#: 1
Join Date: Jun 1999
Chapter/Region: BAIC
Location: Alameda, CA
2011 Impreza WRX STi


No. All it does is make your clutch system electronicly-controlled. So in stead of pressing the clutch pedal, you press a buttom and hydrolic pump pushes the slave cylinder.

So you will have 2 master cylinders. One regular - pedal controlled and the second one is electronicly controlled.

Hope this makes sense. That info on Taka Kaira is wrong.

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