Looking for feedback on type and thoughts on the conversation.
short shift gear shift
- Thread starter Kendarke42
- Start date
Not a Boxster, but my old 911, owned and hillclimbed for 37 years.
4 short shift kits inc a factory option.
All poor and back to the original which is so much better.
IMHO short shift kits are great initially but quickly become tiresome as the effort of changing gear increases.
4 short shift kits inc a factory option.
All poor and back to the original which is so much better.
IMHO short shift kits are great initially but quickly become tiresome as the effort of changing gear increases.
I’ve not taken the short-shift route on my 987.2 CS but those who have say that gear engagement when the transmission oil is cold is more obstructive and therefore potentially could lead to more longer-term wear on the synchromesh mechanism … higher peak force over a shorter time?
Unless you’re planning a lot of track days I’m not convinced that you’ll gain much over the standard shift; but your call.
Jeff
Unless you’re planning a lot of track days I’m not convinced that you’ll gain much over the standard shift; but your call.
Jeff
The extra weight is simply because you have less leverage with the short shift, therefore more force required on the lever at all times. This may be more noticeable when cold but does not mean more force is being applied to the synchromesh mechanism. The internal force on the gearbox does not change.I’ve not taken the short-shift route on my 987.2 CS but those who have say that gear engagement when the transmission oil is cold is more obstructive and therefore potentially could lead to more longer-term wear on the synchromesh mechanism … higher peak force over a shorter time?
Unless you’re planning a lot of track days I’m not convinced that you’ll gain much over the standard shift; but your call.
Jeff
Yes I’d appreciated that Ian, and agree fully with you once the transmission oil has reached normal running temperature. However, as you can see I was referring to the situation when the oil is still cold and merely was speculating that owing to the more obstructive nature of a short-shift it’s possible inadvertently to apply more force than necessary [above that due to the leverage effect] to obtain gear engagement.
Admittedly many years ago, but on the one occasion when I drove a vehicle with a short-shift I seem to recall having to apply what I considered to be a disproportionate force to get it into gear from cold. Maybe other factors were in-play too.
Probably I’m overthinking this? I’ll get my coat!
Jeff
No, it is simple.
Work done = force x distance.
The box needs a level of effort (work done) to shift gear, over come oil resistance, frictions etc.
If you decrease the distance (shorten the shift length) the force has to increase to make the equation work.
The force is you pushing the lever, thus you have to apply more force every shift movement, and that can become tiresome.
Work done = force x distance.
The box needs a level of effort (work done) to shift gear, over come oil resistance, frictions etc.
If you decrease the distance (shorten the shift length) the force has to increase to make the equation work.
The force is you pushing the lever, thus you have to apply more force every shift movement, and that can become tiresome.
I have had a Porsche one in my 987.2 for 10years and love it each to their own.
Yes as said I’m fully aware of the physics involved Graham, and could continue this line of discussion, but I think the original poster is more interested in hearing from anyone who has actual experience of fitting one of the many short-shift options available for Boxsters and so I will say no more here.
Jeff
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