double clutching

[jeffro1265]

whats the point of double clutch downshifting? why isnt a single clutch with rev match good enough? i found this video and its seems kinda pointless...:shrug:
[ame=http://www.youtube.com/watch?v=5iXu5_ty3Zs]YouTube - Heel-Toe w/ Gary Sheehan driving an STi[/ame]

 

[crazyj0n]

Because toretto says so.

 

[SmokenGRA03]

That guy can drive. Did you see his heel/toe also!
I think the Double clutching is faster to do the to rpm match.

 

[BuckChoklit]

Maybe it gets the drivetrain spinning at the same speed as the powertrain?

 

[TwinTurbo4vGT]

double clutching is necessary when driving a rally car, because their RPMs spike so fast you need to do it. Rally cars are monsters, they see over 300hp at 1000rpms

 

[jeffro1265]

Maybe it gets the drivetrain spinning at the same speed as the powertrain?

yeha but a single clutch does the same thing :shrug:

 

[Stavesacre21]

Vin diesel says "granny shiftin...not double clutchin like ya should"

This didn't bring double clutching to mind did it? The last few threads i've read about it were rather inspired by ole Vin.

 

[jeffro1265]

Vin diesel says "granny shiftin...not double clutchin like ya should"

This didn't bring double clutching to mind did it? The last few threads i've read about it were rather inspired by ole Vin.

no, i was just watching random videos on "advanced shifting" and came across this. thought it was interesting

 

[BuckChoklit]

yeha but a single clutch does the same thing :shrug:

No it doesn't. With a single clutch, the synchronizers get everything matched up.

 

[Stavesacre21]

yeah, it used to be required in unsyncronized transmissions. Also as mentioned above, it's rather popular in Rally racing. If you haven't already, check out some details here. It shouldn't leave too many questions to the basics of why it's done.

 

[TwinTurbo4vGT]

yeha but a single clutch does the same thing :shrug:

the reason he double clutched, is because he is in a rally car. The shifter, rather than going straight to the next gear, makes a stop in neutral and then the clutch is released. This is to allow the engine to slow down (or with a tap on the gas, speed up when downshifting) so the transition into the next gear is much more smooth.

 

[dks]

the reason he double clutched, is because he is in a rally car.

No,he had different reasons. Gary Sheehan chimed in and explained it here:
http://www.svtperformance.com/forums/pics-videos-buffet-149/485101-double-clutch-downshifts.html
post #32 and after.

 

[darkhorse276]

Ask any racer.....any real racer.

Double clutching is the way to go.

 

[GetOffTheCar]

There's a show down in the desert called Race Wars and that's where you'll do it.

 

[canibus]

don't narc anyone

 

[ziggyspeez]

There's a show down in the desert called Race Wars and that's where you'll do it.

Thats if you don't get blown up by the NOS tanks first.

 

[03cobra#694]

Maybe it gets the drivetrain spinning at the same speed as the powertrain?

+1
Same principle as a big multiy speed truck w/o syncros.

 

[motoman991]

It's because he lives his life a quarter mile at a time.

 

[Chris _Scott]

what edwin knows is, its not how you stand by your car

...its how you double-clutch your car, you betta' learn dat.

 

[94five0]

because you blew the welds on your intake, your floor pan fell out.