Anyone Master Downshift Rev-Matching

[Topless]

Originally Posted by san rensho

How much more difficult is it to blip the throttle in neutral, BEFORE you engage the lower gear? And do you doubt that blipping the throttle before shifting is better for the tranny?

You guys are both right. San Rensho's method is absolutely necessary in an Alpha or any car built in Italy if you wish to avoid scattering synchros all over the road. It is completely unnecessary in a modern German car, especially a Porsche.

That said, it is of course your car and you may downshift it anyway you like.

[jb92563]

What would be the best technique for a maximum performance takeoff from a standing start.

Shifting 1-2 seems rough if you clutch at 7000rpm into 2nd gear.

Maybe I'm not clutching slow enough before engaging 2nd and the enigne is still pulling too hard when I clutch in at 6800 rpm.

Feels like I might need to let up on the gas before the shift?

no problems with the other gears.

[san rensho]

Originally Posted by jb92563

What would be the best technique for a maximum performance takeoff from a standing start.

Shifting 1-2 seems rough if you clutch at 7000rpm into 2nd gear.

Maybe I'm not clutching slow enough before engaging 2nd and the enigne is still pulling too hard when I clutch in at 6800 rpm.

Feels like I might need to let up on the gas before the shift?

no problems with the other gears.

For the fastest launch, which is a real clutch killer, you need to get the revs up really high, around 6500 RPM, then start to let the clutch out and simultaneously, floor the throttle and hold it on the floor, then modulate the clutch so the motor doesn't bog down, over-rev or spin the tires.