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Old 05-18-2012, 04:35 PM   #23
san rensho
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Join Date: May 2011
Location: Miami florida
Posts: 1,591
Quote:
Originally Posted by Frodo View Post
Since we've somewhat gotten onto this subject anyway, a h/t question, something I've never quite understood:

When you are braking and simultaneously 'blipping' the throttle, is the blip to
(1) rev match engine & transmission (ie you're doing it while the clutch is depressed and you are downshifting---after which you shift your right foot off the brake and back over to the accelerator to give it gas while letting the clutch out), or

(2) rev match the engine & wheels (ie you're doing it as you let the clutch out to accelerate, as in out of a turn)?
I'm guessin' it's (1), since the other suggests you're braking and trying to accelerate at the same time. But (acknowledging it'll wear your synchros faster) it's entirely possible to brake/clutch/down-shift all simultaneously without out blipping the throttle at all, until you start letting the clutch out. Is h/t primarily to save the transmission, or is it actually a faster way of negotiating a turn on a track?
HT downshifting is done on the straight, before you you turn in. The whole time you do this procedure you are on the brakes. You get on the brake, then you put depress the clutch, while you are still pressing on the brake you immediately downshift to the lower gear. With the clutch still depressed, you either roll the top of your foot , or rotate your heal to the accelerator and press down to blip the throttle. As soon as you blip the throttle, you let the clutch out. If you did it right, the car will neither accelerate or decelerate when you let the clutch out, The art of HT is how much you blip the throttle and the instant you let the clutch out.

It takes a lot of practice. When you get it right, its a thing of beauty.

Now if you really want to save your synchros, you have to double clutch downshift, but thats another complicated lesson.
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1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
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1989 (?) Alfa Romeo Milano
1993 Saab 9000

Last edited by san rensho; 05-18-2012 at 04:38 PM.
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