PASSDU2 has it right. However, it is usually only done when downshifting. Double clutching is much easier on the synchros too so it has a purpose. I always do it when driving normally but when racing--> :barf:GTmustang00 said:ive always thought double clutching was when going into a corner, it will take the weight or momentum off the front end. my cousin was showing me it in his porsche and double clutching is much better then just shifting into corners. im sure he has a different transmission than us.
That's one of the dumbest things I've heard since my 6th grade friend insisted that continually hitting the decompression button on his moped made him faster, for exactly the same reason. What a rush when the compression kicked back in! If your car is faster because disengaging the clutch (thereby disengaging the power and stopping all acceleration) and then re-engaging it at a higher RPM actually works then you are either operating in a different dimension or you need to shift back down a gear.psychoII said:Double clutching also is done in racing, it is when you feel your car isn't pulling like it should so you push in the clutch so the rpm can race higher, then release the clutch, it gives that sudden feel like you just increase in power. I don't know about the rest of you, but I have tried it, and it works, just for a second. I was racing this guy back home, I had an 82 mustang. He had a 91 mustang. I jumped him off the line, as he started to ease up beside me, I double clutched and held him through the 1/4. That is what Vin Diesel meant in the movie, not clutching and going to neutral.
Rev matching as you do, is done in the interest of the clutch etc.ThisAintNoHonda said:I don't see why anyone would bother double-clutching a car transmission, because the limited amount of friction passing through the clutch when it's disengaged is still enough to accelerate or slow the gears. In a truck there is so much mass spinning in the transmission that you have to double-clutch but in my car when I downshift I just step on the clutch, take it out of gear, rev it, and pop it into the lower gear.