double clutching??

[HuGo]

What exactly is double clutching?? Is double clutching when you drive and your in same gear, clutch rev the engine, and drop the clutch again in the same gear?? Is that helpful in racing? how exactly do you do it?? Does that give you a faster push off in gears?? If someone does this with their stock engine, how do you do it so i can start learning??

[DustenT]

Originally Posted by 1996Bmw318TI

What exactly is double clutching?? Is double clutching when you drive and your in same gear, clutch rev the engine, and drop the clutch again in the same gear?? Is that helpful in racing? how exactly do you do it?? Does that give you a faster push off in gears?? If someone does this with their stock engine, how do you do it so i can start learning??

Did you just watch Fast and the Furious? Dude, you have some of the funniest questions!!

"granny shifting, not double-clutching like you're supposed to"

I don't think people actually double-clutch anymore.

[HuGo]

Originally Posted by DustenT

Did you just watch Fast and the Furious? Dude, you have some of the funniest questions!!

"granny shifting, not double-clutching like you're supposed to"

I don't think people actually double-clutch anymore.

No i did not just watch it. My friend does it in his honda. I feel like when he does this, he pulls more power. I see him shifting wierd sometimes, for example, hell rev in first gear to 3,500 rpms then he drops the clutch, then he puts in the clutch revs and drops again, in first gear, then he goes to second, he clutches and revs again and lets go, in second gear. And everytime he does this, it pulls more and goes faster. Thats what im asking. Is that double clutching or what is that? And is it helpful

The way i race is. I rev in first gear at 4000rpms drop clutch, then i just go all the way up to redline each gear and shift. Is that how u drive?

[DustenT]

Here is a good definition:
http://en.wikipedia.org/wiki/Double_clutching

Used with straight-cut gears. Your friend with the Honda sounds like he's not a very good driver, or that Honda is a mut. Hondas make peak power close to red line, he's slipping the clutch to get to redline faster. It's very bad for the clutch, and actually slows you down.

[HuGo]

Originally Posted by DustenT

Here is a good definition:
http://en.wikipedia.org/wiki/Double_clutching

Used with straight-cut gears. Your friend with the Honda sounds like he's not a very good driver, or that Honda is a mut. Hondas make peak power close to red line, he's slipping the clutch to get to redline faster. It's very bad for the clutch, and actually slows you down.

Actually dude, hes a very good ****ing driver. Hes like the fastest guy here where i live. Everyone bugs him for advice and he does swaps in everyones cars. Hes like the mechanic for race car drivers here. He had a honda smoked wrx and lancers like nothing. I think thats what he did, and how he drives, i just know his **** pulls ****ing hard.

[1996 328ti]

It really isn't necessary to double clutch when you have perfectly working syncros.

Read this.
http://www.318ti.org/notebook/shifting/index.html

Also, a little less cursing.

[HuGo]

But is that like the proper way to shift when racing the way i do??

The way i race is. I rev in first gear at 4000rpms drop clutch, then i just go all the way up to redline each gear and shift. Is that how u drive?

[1996 328ti]

Originally Posted by 1996Bmw318TI

But is that like the proper way to shift when racing the way i do??

The way i race is. I rev in first gear at 4000rpms drop clutch, then i just go all the way up to redline each gear and shift. Is that how u drive?

I guess if you are drag racing. It's gonna get expensive if you keep that up. I don't know anything about racing in a straight line. At the track I tend to shift at red line.

[cali-ti]

btw, double clutching is ONLY FOR DOWN SHIFTING! people who race tend to still double-clutch when racing to match revs when downshifting coming into corners. if you don't, you risk tire spin.

that article steven linked to is a good one to get you up to speed on what double-clutching is and how to do it.

[HuGo]

so you guys race in corners and turns?? I dont really like that, i just like racing straight, Like from stop light to like 4-5 blocks ahead. I also like to race in freeway since the turns arent to hard. Just gotta be able to keep the steering wheel stable at turns.

I was reading the power shift thing but didnt get it. What is that?

[cali-ti]

Originally Posted by 1996Bmw318TI

No i did not just watch it. My friend does it in his honda. I feel like when he does this, he pulls more power. I see him shifting wierd sometimes, for example, hell rev in first gear to 3,500 rpms then he drops the clutch, then he puts in the clutch revs and drops again, in first gear, then he goes to second, he clutches and revs again and lets go, in second gear. And everytime he does this, it pulls more and goes faster. Thats what im asking. Is that double clutching or what is that? And is it helpful

i have no idea what that is but i can't see how it gains him anything other than increased wear on the clutch. i would ask him why he does it. i personally see no sense to it.

Originally Posted by 1996Bmw318TI

The way i race is. I rev in first gear at 4000rpms drop clutch, then i just go all the way up to redline each gear and shift. Is that how u drive?

it's not how i normally drive my car, but if i was going to race, that's how i'd do it.

[HuGo]

Originally Posted by cali-ti

i have no idea what that is but i can't see how it gains him anything other than increased wear on the clutch. i would ask him why he does it. i personally see no sense to it.

it's not how i normally drive my car, but if i was going to race, that's how i'd do it.

Well obviously in my normal driving i dont drop the clutch at 4000rpms and peel out everytime i take off, i would get pulled over. When i take off normal driving, i even out the gas with taking out the clutch. So maybe like at 1,500 rpms. Smooth you know. And i switch gears at 4000rpms. But when im racing is when i rev at 4000 and drop the clutch and redline every gear. Is that proper way though for just doing a quick race??

[HuGo]

Im sorry steve, i could tell the link you gave is really helpful, but i didnt understand it. I dont get what you mean by blip from 5th to 4th.

[cali-ti]

more or less, yes. you want to shift into peak torque of the next gear, if at all possible. you'd need to look at the HP and torque curves of the m44 engine to see where the peaks are. the idea is to rev it out in the current gear until the point where you'd be close to the revs at which in the next gear up you'd be at your peak torque. this may or may not always be possible, it depends on where the engine builds peaks of HP and torque.

[dodj]

blip mean tap the accelerator when downshifting to match the revs the gear below would be doing at the speed you are currently doing. so its smooth and doesnt really feel like you changed gear. i think