Update
ZF gear tooth speed sensor arrived today (part no GS100701). This is the same sensor ive seen for £70 -100 on a few tuner places, where in reality its £30 from Rs Components.
With weather being good and curious to see if it was a goer, i freed a couple of hours up this afternoon to fit it to the Trophy.
It was a relatively easy fit as straight into my homemade bracket. Small amount of extra wiring as 3 wire. The sensor is rated from 5v to 24v dc. I planned on wiring 12v but without butchering more wiring in fusebox for an ign live, i decided to give it a go on the ecu sensor 5v circuit, using sensor earth on ecu and vss pin.
The spec sheet says give it a 1k pullup at 5v and ecumaster has that selectable on the ecu so no adding external pullup resistors.
I was not really confident this would work on the 182 abs ring, as the spec sheet has minimum specs for tooth height, gap etc and the 182 abs ring is a fair bit smaller than suggested.
With the send it, it will either read or not approach, i fired the car up with front end on axle stands and ran it up in gear. It only reported vss frequency on the logs straight away so was a goer.
Initially it said aomething daft like 180kmh at 20mph, messed about with the frequency divider setting it at 4, and fine tuning with the speed ratio i managed to get it to read about c**k on with oem speedo in kmh of course as metric only.
Took it out and with the mrs driving, i set up the gear calculations so the ecu knows what gear we are in. This is done by viewing the gear ratio log, and inputting the average of the numbers logged on each step when in gear as seen below in green.
As no gear sensor on the box, gear selection is calculated by rpm & wheel speed (might be wrong but im fairly confident). Anyway it appears to work well, with tunerview actually logging gear selected for first time ever. Prob still needs a little tweak, im sure Chris will fine tune it if needs be.
Vss should add a few nice features. Oem stuff like throttle strategies for increased idle when rolling up to junctions out of gear. Possibly throttle blipper but might not work without gear sensor.
The spicey stuff like boost by gear, rolling anti lag, launch etc should work though. With the f4r being piss weak ill prob not use the latter two but boost by gear will be superb.