08-30-2014, 08:00 AM
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#1
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Registered User
Join Date: Aug 2014
Location: Toronto, Ontario. Canada
Posts: 73
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Double clutching is different than heel and toe.
The confusion around all this is rampant.
Here's by far the best video to slowly and articulately explain it all:
http://m.youtube.com/watch?v=X3288FKOe_M
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08-30-2014, 09:00 AM
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#2
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Registered User
Join Date: May 2011
Location: Miami florida
Posts: 1,591
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Quote:
Originally Posted by Jim Rockford
Double clutching is different than heel and toe.
The confusion around all this is rampant.
Here's by far the best video to slowly and articulately explain it all:
http://m.youtube.com/watch?v=X3288FKOe_M |
The difference is really pretty easy. Heel and toe is what you do if you brake while rev matching while downshifting.
__________________
Current car
2000 Boxster 2.7l red/black
Previous cars
1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
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09-03-2014, 09:36 AM
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#3
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Registered User
Join Date: Apr 2008
Location: Southern New jersey
Posts: 1,054
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I have rev-matched both ways, double-clutching, or with a single clutch movement. I call it a pseudo double-clutch downshift, you just don't let it out in neutral.
It won't matter as far as the throwout bearing, it will be accelerated to the same RPM in either case. It may have more pressure on it while single-clutching, but that's what they're built do do....
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09-03-2014, 12:01 PM
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#4
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Registered User
Join Date: Aug 2009
Posts: 1,466
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__________________
2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
Last edited by jsceash; 09-03-2014 at 12:09 PM.
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09-03-2014, 12:23 PM
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#5
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Registered User
Join Date: Jun 2012
Location: Peoria IL
Posts: 529
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Clutches are for sissies. Just rev it slightly to pop it out of gear, then rev it a bit more and slide the shifter down a gear.
P.S. Does anybody know of a place where I can buy new synchros? 
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09-03-2014, 03:04 PM
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#6
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On the slippery slope
Join Date: Mar 2014
Location: Austin and Palm Springs
Posts: 3,800
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Quote:
Originally Posted by CoBeerToad
Clutches are for sissies. Just rev it slightly to pop it out of gear, then rev it a bit more and slide the shifter down a gear.
P.S. Does anybody know of a place where I can buy new synchros? |
We don't need no stinkin clutch!
__________________
2004 Boxster S 6 speed - DRL relay hack, Polaris AutoTop DIY
2004 996 Targa Tip
Instructor - San Diego region
2014 Porsche Performance Driving School
2020 BMW X3, 2013 Ram 1500, 2016 Cmax, 2004 F-150 "Big Red"
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09-03-2014, 04:02 PM
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#7
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Registered User
Join Date: May 2011
Location: Miami florida
Posts: 1,591
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Quote:
Originally Posted by jsceash
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Because they are not double clutching since the gear boxes have synchros, just like our cars. You don't have to double clutch, its just the technique for downshifting that puts the least wear on the synchros and gear box.
Heres a" from the testicles point of view" video of double clutching alternating between just a straight double downshift to a heal and toe double clutch.
https://www.youtube.com/watch?v=Vw-MewZRsAM
__________________
Current car
2000 Boxster 2.7l red/black
Previous cars
1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
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09-03-2014, 08:00 PM
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#8
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Certified Boxster Addict
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
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Quote:
Originally Posted by jsceash
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This makes me really want a sequential gearbox!
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
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1997 Porsche Boxster
2004 Porsche Boxster S
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