I just got my first 911 C2.. 2 weeks ago and i got some questions about the manual transmission. My dealer told me its best to shift at 4k but i have been having a rough time shifting and been getting jerks at each shift (don't really know what I'm doing wrong). My previous car before this was an m3 in MT and i never had a problem. I was wondering at what rpms do you guys usually shift at in normal driving.
From 1-2.. 2-3 ect..

 

i had bimmer manual before the 991 too and had to adjust my clutch work with the porsche. i dont think it has anything to do with rpms--upshifts generally best at 3k rpm or higher to avoid lugging the engine in the next gear. note that the clutch engage point on the 991 is much lower to the floor than the bmw, meaning the clutch catches much sooner as you let the pedal up. also as you engage the clutch, just apply a subtle amount of throttle to keep the shifting smooth. go out and enjoy the practice!

 

After your done practicing post up a few pictures Enjoy.

 

I agree on the clutch vs a BMW. I also came out of an MT M3, and while my shifts have been pretty smooth, I will admit that I have stalled a couple of times because I am so used to the clutch engagement higher on the pedal. All in all, I find it to be a smoother transmission than the M3 which I found near impossible to shift smoothly, especially the 1-2 upshift unless it was at 8K RPMs

 

I noticed too that the engagement is low, but then there is a lot of excess clutch travel. That being said I think the shifts are as smooth as any other car. You often hear a "thump" with the shift which is normal from reading other posts. If you're going slow but reving high, and then shifting, it probably won't be smooth, and vice-versa. I think you'll just get used to it and shift smoother with more driving.

 

Agree entirely. Just practice a bit and you'll find that the MT in the 991 is smoother and more rewarding than the MT in the M3. I came out of a E93 M3, and I was surprised by how much stiffer the clutch pedal is (M3's is spongy by comparison), how much higher the engagement is on the 991, and how much more precise and perfect the 991 shift is.

 

whew, I thought it was just me. After 2 months of hard shifts, I finally had a week of smooth shifts. Definitely have to be quicker shifting before the revs drop on grabbing the next gear.

Didn't drive it for a week because of the weather, and now I'm back to hard jerky shifts. Had a friend in the car today, and it was almost embarrassing how bad the car was jerking.

 

never encountered this problem-practice practice should solve the problem. Beautiful MT!

 

i think the 991 MT is as smooth as any (although tougher to modulate in sport mode), my only problem has been shifting at too low rpm and stalling a few times. guess it's not a car that wants to be babied

 

I had an 08 and an 11 M3 cars alongside the last 9 Porsches . I have found the Porsche gearbox to be the best I have ever driven . It slices trough the gears like butter and the gears engage smoothly. In the M3 cars the gearbox felt sloppy , knotchy, and the shift lever was so ill positioned . There is a huge difference and my only guess is that when one becomes accustomed to a car it takes time to adjust to a new car . As for RPM shifting Porsche does suggest a break in period .

My own personal feeling is that when i get a new Porsche I am getting aquainted with it and visa versa . Just as I am learning the car's style I feel that the car breaks in according to my driving habits (much like shoes which wear out to ones walking style) .

Congrats on the new car !!

 

shift between 3k anmd 4k until broken in - then shift anywhere from 4-7k depending on how agressive you want to be

 

Breaking in is how long? 2,000 miles?

 

You shouldn't be watching the tachometer while shifting, unless you're racing or tearing up a long straightaway.

A driver needs to get used to applying the proper amount of gas while artfully releasing the clutch. This all becomes second nature after practice. It's the same as throwing an opponent in a Judo match: your moves need to be fluid and done by rote. The more you think about the move, the more you screw up.

The "Centipede's dilemma" sums it up in a nutshell:

http://en.wikipedia.org/wiki/The_Centipede%27s_Dilemma
The shifts in my 2013 991MS are totally seamless with no jerking whatsoever when entering a new gear. The only time I feel any type of jerkiness is while speed-shifting at the optimal performance range, which isn't right at red-line by the way.

Good luck and enjoy your wonderful machine!

 

Yea i too thought i was the only one. But I have been taking your guys advice and giving a little gas before i completely let go of the clutch and it has helped make the shift a lot smoother.

 

r u serious...if u have been driving a mt car u should be able to sit down and after 5 min get used to the clutch.