[ChrisM623]

Originally Posted by alihamza

LMAO!!! Good joke man!

[lidrew]

THERE IS NO NEED TO DOUBLE CLUTCH...EVER. This isn't a 1960s Pickup Truck.

[howboutthemapplz]

Originally Posted by ChrisM623

If I were going from 6 to 4 I'd clutch in, rev it, throw it in 4 and let the clutch out. No need to double clutch at all.

Step 1:
The action of double clutching is highly recommended if you are trying to slow your vehicle in slippery conditions. It allows you to use the motor instead of your breaks. Double clutching doubles up the shifting into gear. First you will need to be into gear. Let's assume you are in 4th.
Step 2:
Next press the clutch as you normally would to downshift.
Step 3:
Now instead of going straight into let's say 2nd gear, bring the stick shift to neutral position, and release the clutch.
Step 4:
Press the gas slightly to bring up the revs of the engine as it will be going to a higher RPM when you downshift. Bringing the engine to speed that way will allow a smoother transition.
Step 5:
Now press the clutch again and bring the stick to your target gear: 2nd.
Step 6:
You can now release the clutch faster as the engine is matched in RPMs. This can also be used to upshift in a race car or a large truck's transmition.
__________________________________________________ _______________________________
above is taken from a website.. how would this be different from rev matching??? i understand the extra step. but why would this ever be neccesary?

[ChrisM623]

Double clutching involves throwing it in neutral...letting the clutch out then putting it back in and shifting...

Tell me...how is this saving my syncros any better then rev matching?

[Seppo]

^ exactly, rev matching does the same exact thing.

[howboutthemapplz]

/close

[Real Deal]

Originally Posted by ChrisM623

Double clutching involves throwing it in neutral...letting the clutch out then putting it back in and shifting...

Tell me...how is this saving my syncros any better then rev matching?

yeah seriously
it just sounds like more work
rev matching does the exact same thing as double clutching
minus the extra clutch in, neutral, clutch out, clutch in, rev match, downshift, clutch out
i think its pretty ridiculous to do that much more

[STiSubyMan]

I just Rev Match. works fine

[ChrisM623]

Double clutching is more work...I don't know why some of you guys insist that it is better at all!

[Kit08]

yeah dude, makin double clutchin sound so much more technical than i ever thought it was. I mostly rev match anyways..

[tyler_sti]

I belive double clutching is used for cars without syncros aka race trannys. I think its useless in a street car unless the tranny is really cold. IMO

[sticop]

Originally Posted by tyler_sti

I belive double clutching is used for cars without syncros aka race trannys. I think its useless in a street car unless the tranny is really cold. IMO

i do it when the car is cold. it... likes it... lol. other than than just rev match

[IlliniSTi]

Originally Posted by ChrisM623

Double clutching involves throwing it in neutral...letting the clutch out then putting it back in and shifting...

Tell me...how is this saving my syncros any better then rev matching?

In a normal, single clutch rev-matched shift, the lay shaft is going at a different speed than the wheels and the engine. This results in wear to the clutch and synchros as the speeds of the gear, layshaft and flywheel are equalized. In a double clutch shift, your rev match makes the flywheel and layshaft both spin at the speed of the gear you are going to. This way there is very little difference in speed between the gear, layshaft, and flywheel. Or so the theory goes...

[steelgraySTi06]

Originally Posted by tyler_sti

I belive double clutching is used for cars without syncros aka race trannys. I think its useless in a street car unless the tranny is really cold. IMO

exactly it's an old technique that was used before syncros were invented

[Seppo]

Originally Posted by IlliniSTi

In a normal, single clutch rev-matched shift, the lay shaft is going at a different speed than the wheels and the engine. This results in wear to the clutch and synchros as the speeds of the gear, layshaft and flywheel are equalized. In a double clutch shift, your rev match makes the flywheel and layshaft both spin at the speed of the gear you are going to. This way there is very little difference in speed between the gear, layshaft, and flywheel. Or so the theory goes...

But when you rev match, you still blip the throttle while clutch is fully in (essentially neutral), so everything is going at the same speed.