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OT: SVRA Mid Ohio this weekend

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Old 07-03-2013, 10:21 AM
  #31  
mike1111
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You handled that like a pro
Old 07-03-2013, 10:35 AM
  #32  
TRAKCAR
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Originally Posted by Izzone

Wow, just wow!!
That's Ron driving,. or did you get a new helmet?
Why the duct tape on the front, no contact right?

Sooo, lucky. Crazy how quick the car was gone on a straight line.
Old 07-03-2013, 10:53 AM
  #33  
FLA997
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Definitely Ron driving - the double clutch master.
Old 07-03-2013, 10:59 AM
  #34  
Izzone
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Originally Posted by TRAKCAR
Wow, just wow!!
That's Ron driving,. or did you get a new helmet?
Why the duct tape on the front, no contact right?

Sooo, lucky. Crazy how quick the car was gone on a straight line.
That video alone is testament to why safety gear and safe car are important. It could have ended bad and even a pro at the wheel there is nothing you can do but put two feet in

Not me driving....still practicing double clutching on the street in the mini, and doing it a bit in the track. Its not that hard to do, and sure helps from keeping the gearbox hot. During the 90 minute endure I got in the car after Ron and the trans shifted perfect.....imagine what a GT3 would shift like after 90 minutes LOL

The front sits so low the tire hit the headlight bucket in the grass and cracked it
Old 07-03-2013, 12:29 PM
  #35  
M3EvoBR
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How does double clutching helps the gearbox temps ?
Old 07-03-2013, 12:49 PM
  #36  
scott40
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Lucky the spin was just out of the keyhole- more room for run off there compared to farther down the back straight.
Old 07-03-2013, 01:41 PM
  #37  
Izzone
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Originally Posted by M3EvoBR
How does double clutching helps the gearbox temps ?
Ron explained it to me one day in his shop with a gear box disassembled showing me how it works. If I could explain it I would. Next time you see him at the track ask him, or call him im sure he can explain it

In short it reduces friction on downshifts. Friction equals heat

He told me that during the 996 cup days when the car had a manual transmission most drivers would do it during an endurance race even with a syncromesh box.....I questioned him on it....then he showed me video of Patrick Long doing it during the 24 hours of Daytona

When Giesha was a track car I rode with him around Road Atlanta, it is butter smooth when he does it
Old 07-03-2013, 04:34 PM
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Nick Wong
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When you double declutch, the synchros do not work anywhere near as hard. The act of manually spinning up the trans out of gear keeps the synchromesh friction to a minimum.
Old 07-03-2013, 10:13 PM
  #39  
M3EvoBR
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Originally Posted by Izzone
Ron explained it to me one day in his shop with a gear box disassembled showing me how it works. If I could explain it I would. Next time you see him at the track ask him, or call him im sure he can explain it

In short it reduces friction on downshifts. Friction equals heat

He told me that during the 996 cup days when the car had a manual transmission most drivers would do it during an endurance race even with a syncromesh box.....I questioned him on it....then he showed me video of Patrick Long doing it during the 24 hours of Daytona

When Giesha was a track car I rode with him around Road Atlanta, it is butter smooth when he does it
Interesting, because in theory that is the function of a good clutch and why we have boxes with synchromesh.
I remember in the old days I used to drive tractors and an old low 70s ford Corcel at the farm and neither one had synchros. The ford had on the higher gears, but 1-2 you had to set the correct time, always missed in the beginning. I was 5-6 years old
Old 07-04-2013, 09:12 AM
  #40  
KaiB
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Originally Posted by Nick Wong
When you double declutch, the synchros do not work anywhere near as hard. The act of manually spinning up the trans out of gear keeps the synchromesh friction to a minimum.
This.



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