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Old 08-24-2014, 03:05 PM   #28
paulca
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Drives: Toyota GT86 Coupe Red (UK)
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Quote:
Originally Posted by aznatama View Post
Third, It's not going into first because the gear speeds don't match up, you'll need to revmatch, double-clutch, or sequentially downshift.
That's what synchros are for. Rev matching with the engine does nothing as the clutch is down the engine is not even connected to the gearbox. You rev match simply to prevent a lurch on a down change that might destabilise the car. So only really necessary when at the very limit.

Double de-clutching is a technique associated with very, very old cars with no syncros, so you had to reconnect the engine to the gearbox while in neutral, spin the shafts up the new gear road speed and then re-clutch to select the gear. Completely unnecessary today as the syncro's will do a far better job. You just have to give them a little time and not get impatient and force them.

In the OPs scenario double declutching, ie. clutch in, neutral, clutch up, throttle blip to 5k RPM, clutch in, select 1st, *might* make it easier if done correctly, but it would take him a lot longer than just waiting on the syncro.

If you try driving along at 30mph, put the clutch down and hold the shifter lightly against 1st and listen, you will hear and asscending whine as the gearbox spins up to effectively 7k rpm. It's a pretty cool sound, but I wouldn't recommend doing it all that often. Though if your brakes ever fail on you, you can always use 1st gear and the clutch for brakes.
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