Anyone fitted either the rod or linear sensor? If you know what I've just asked, without further explanation, then you'll probably be able to help.... please.

I've had a linear sensor on one of the gearchange bellcranks, works with some reliability, though cut point in the change could vary a tad.... probably a bit of slop/vibration, but nothing obvious. My new car has a PCIII and a cable shift...

I've got the offer of a push-pull sensor that simply plugs into my PCIII. The sensor will simply slot into the gearchange cable end. Simples. Before I take the plunge though, anyone used a push/pull sensor - how much effort do they take to contact, and is that effort appropriate to kill the fuelling at the right time on a BEC change?

I've got a Trickshifter (http://www.trickshifter.com/shifter.html) which I believe are now sold under a slightly different name with a few more variations (in terms of functionality and cost).

As you can see on the link it uses a sensor which you pretty much have to make part of the linkage - that's what I've done anyway.

So I can only comment on how it works in that fashion - not sure if it could be made to work satisfactorily with a cable change and also not sure how this compares to the "push pull" PC3 sensor.

The way the trickshifter sensor works is detecting either being compressed or stretched (probably a strain gauge?). It doesn't actually move a visible amount when being pushed or pulled.

It is adjustable via a grub screw (with locking nut) on the top.

Works really well.

Also this system cuts the ignition rather than the fuel I believe so can make some rather loud bangs on changes in higher gears when you're "on it"!

[Edited on 1/2/10 by hobbsy]

Thanks, yep, although the visual appearance of your sensor looks like a linear version, it appears from what you say, to be operating as a push/pull. I'll take that as a positive view on latter. Thanks, much appreciated.

BTW: The catalyst in the exhaust is making the can glow orange as it is, I think an ignition-cut explosion would be even more dangerous for the marshals! Fuelling cut looks better for my purposes.