You at Blyton on Friday, Tony? Hello btw
Left foot braking
- Thread starter ian harvey
- Start date
You at Blyton on Friday, Tony? Hello btw
Definitely Chris
Tony,
I posted on here a little while ago noting that - unusually - my rear pads appeared to have worn more than the fronts (down to 5mm vs 7mm R/F). I've done a quite few track days in my manual CS and the general consensus was that probably it was due to the PSM kicking-in, although I've not noticed it.
If you're leaving the PSM engaged on track I suspect this effect could be exacerbated by you braking and accelerating simultaneously. I'd be interested to hear if your pad wear profile is similar to mine.
To those attending this week's Blyton track day, sorry I can't join you this time but look forward to catching up with you all next year. Have fun..!
Jeff
I posted on here a little while ago noting that - unusually - my rear pads appeared to have worn more than the fronts (down to 5mm vs 7mm R/F). I've done a quite few track days in my manual CS and the general consensus was that probably it was due to the PSM kicking-in, although I've not noticed it.
If you're leaving the PSM engaged on track I suspect this effect could be exacerbated by you braking and accelerating simultaneously. I'd be interested to hear if your pad wear profile is similar to mine.
To those attending this week's Blyton track day, sorry I can't join you this time but look forward to catching up with you all next year. Have fun..!
Jeff
Clive, I think you may be right about pvt I assumed it didn't matter with psm but re-reading the handbook psm does take account of throttle position - I just don't know if it does in this instance. Most modern cars have a fuel shut off when braking which inhibits left foot braking, having read your link (which I agree with) with a manual transmission the whole point is to be able to hold the throttle open, either to adjust the attitude of the car or in the case of early turbos to keep the turbo spinning. It's relatively easy to use on front drive cars, on rear (or fwd) adjustable brake balance comes into the question.
My use in the Cayman is simply to reduce the time between coming off the accelerator and braking following an article back in the mists of time by the notable LJK Setright on how to drive automatics. To answer Andrew, the only reason I'm not coming fully off the accelerator is habit - this being the first car owned with the level of electronic intervention where it might be an issue.
Further investigation is in order! This might provide further info for Jeff too, although what he describes is I believe fairly common. The handbook says that the rear brakes are employed to stop 1 wheel spinning or to counter front wheel slip - now at what point understeer becomes front wheel slip I don't know.
Tony
My use in the Cayman is simply to reduce the time between coming off the accelerator and braking following an article back in the mists of time by the notable LJK Setright on how to drive automatics. To answer Andrew, the only reason I'm not coming fully off the accelerator is habit - this being the first car owned with the level of electronic intervention where it might be an issue.
Further investigation is in order! This might provide further info for Jeff too, although what he describes is I believe fairly common. The handbook says that the rear brakes are employed to stop 1 wheel spinning or to counter front wheel slip - now at what point understeer becomes front wheel slip I don't know.
Tony
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