Hi Matt, if I understand you correctly you say the revs went up for scenario one so its doesn't really sound like the ASR traction control system to me, which only cuts power, or brakes wheels.
Can I ask were you changing down a gear very aggressively beforehand?
IF you had changed gear well before this happened and had drive in that gear then you can ..ignore this mail
This has happened to me very rarely (2 or three times on the track) over the last few years when I have stuffed up a heel and toe gear change while doing limit braking.
The revs go very high for a few seconds even after removing all throttle and all engine braking is lost, applying the clutch has no effect so the car is not really in gear, and you can't change gear.
I was wondering was it possible to beat the synchromesh somehow and the gearchange somehow gets stuffed up.
I can't really remember did I have to re-change to 2nd gear to gain drive - there was a corner approaching a bit more rapidly than I had planned.. :-)
(Aside: haven't had it ever happen when I use double de-clutch heel and toe changes, which shouldn't strictly be neccessary in theory)
The 156 GTA has an MSR system (would guess other 156s too) which is designed to intervene if you change down a gear in such a way that the resultant torque applied to the driven wheels would cause a lock up (i.e. shift-lock).
I don't know if this system could be responsible for this behaviour.
Anyway If this sounds like your experience its hopefully going to be a pretty rare one, but I'm not 100% sure of the technical explanation.
Originally Posted by matt_att_att
i spanked round a corner rescently in 2nd gear... the revs flew up as i put my foot down - but it felt as if the clutch slipped, no power, until i came out of the corner, was this ASC or do i have a worn clutch??? (the bite point is quite high)