R32 Gtst - Track Car

[MBS206]

Any idea why the shifter stopped working randomly, but would start working and then stop again on the next lap?

[Komdotkom]

It's not the dreaded rusty actuator syndrome I hope. I've often wondered if for short events like WTAC whether there is a benefit to running a tank for the shifter instead of a compressor to get around this issue.

[bcozican]

12 hours ago, MBS206 said:

Any idea why the shifter stopped working randomly, but would start working and then stop again on the next lap?

 

2 hours ago, Komdotkom said:

It's not the dreaded rusty actuator syndrome I hope. I've often wondered if for short events like WTAC whether there is a benefit to running a tank for the shifter instead of a compressor to get around this issue.

insert technical terms here......    the motec didnt know what gear the box was in, selector sensor plus barrell not engaging after the above 2nd run it just went to sh*% and basically didnt work thats all I know

box is out and going to Jason at Samsonas

[Komdotkom]

Oh righto, Brad is always banging on about the gear pos sensor and how critical it is.

Better than rusty actuator like a holinger

[GTSBoy]

24 minutes ago, Komdotkom said:

Oh righto, Brad is always banging on about the gear pos sensor and how critical it is.

If this was an industrial application (and more so, an equipment/health safety thing) then I'd be mooting a 2 out of 3 voting system. You have 3x sensors, expect and want all 3 of them to agree, but in the event of disagreement of one of them, you use the agreed value of the other 2. And raise a fault.

This then places the common failure mode on whatever linkage you have connecting the 3 sensors to the thing that moves, but some common sense can be applied to make that similarly redundant, space being available, of course.

[MBS206]

OR, Tell the Motec to STFU, you said shift, so try shifting!

But then yes, I agree, more sensors needed to.
Put either a wheel speed sensor, or a diff speed sensor on it.

Then get an input shaft speed sensor too. (I say input shaft speed, and not engine RPM). This way, you can now also log and see if the clutch is slipping (RPM, vs input shaft speed), and you can calculate gear (Input shaft speed / Output shaft speed). At least then if the gear position sensor fails you have a backup.

And realistically, the Motec should only worry about what gear you're in for the parts where I'm assuming you have some power management strategies in it for the lower gears. (IE, lower boost, maybe different throttle curves, different ignition curves, etc etc).

But it should stop it shifting. Pull the flappy, that f**ker should just attempt the motion! Heck, even on a sequential like on a motorbike, you can keep trying to kick it up a gear all you want, the physically part of the box takes care of not being able to loop the whole way around the box! Only part you'd have to worry is how it gets to reverse.  But that's on the driver... An R32 shouldn't be so smart as to try and override the driver on a gear shift  

[bcozican]

 This thing sounds like a friggin jet fighter 😆 must be that Neo head @Dose Pipe Sutututu lol

 

Using all the track great shot coming out of the last turn onto the straight 

 

 

 

Edited July 4 by bcozican

[Dose Pipe Sutututu]

Hell yeah, NEO head ftw!

Also you and Brad probably bought all the spare NEO heads lying around and drove the price of them right into the stratosphere lol.

[bcozican]

10 hours ago, Dose Pipe Sutututu said:

Hell yeah, NEO head ftw!

Also you and Brad probably bought all the spare NEO heads lying around and drove the price of them right into the stratosphere lol.

I do know where there is a fair few 😉

[MBS206]

3 hours ago, bcozican said:

I do know where there is a fair few 😉

Your back garage, second shelf from the bottom?

[Komdotkom]

I've got three stashed away but it's starting to get silly with the prices