maspirito

I have a new GT 3 with a manual transmission. With the sport mode button pushed I have found that in the shifts from fourth to third it does not rev match consistently sometimes it will, sometimes it won't.
I was wondering if anyone else has had a similar experience with this. It seems to match perfectly in every other downshift.

Mech33

cobrien

I've had no similar issues. Are you downshifting from high revs in 4th that might cause the engine to over-rev in 3rd?

sccchiii

Ive never had a issue but only used the sport button once to see what it does, timing is still involved...its a stupid computer that just is trying to match based on parameters at revs when you choose a gear. You can still screw it up if you don't work clutch with right timing? You can lead a horse to water...well you know the rest!

maspirito

I have usually been shifting so that it would need to be at 4500 rpm going into 3 so not high, and It's inconsistent only in the 4th to third downshift. No really getting the horse to water thing but whatever. I work with horses all day and all night.

GrantG

maspirito

That's probably it. I may have touched the throttle. Will continue to try and see how it goes.

Wild Weasel

I haven't figured out the system yet. In my Boxster it was simple. You stuck the stick in a gate and the car rev-matched that gear (if possible) no matter what.

The GT3 has some sort of witchcraft going on in it to predict what gear you should grab and I've also had it do nothing at all in pretty mundane situations for no reason I can think of. And when that happens, it seems to just take a union break or something as there's no convincing it to get back in the game. I've tried pulling back out of the gear and going into it again... choosing a different gear... it just gives up and leaves you to your own devices. Double-clutching it might get it back up and running.

I honestly don't understand it. It's a mystery.

maspirito

That has been my impression as well pretty inconsistent only 4 to 3

FourT6and2

I've not noticed any inconsistencies in mine. Seems to work well.

Dougr743

2400 miles, no issue, been messing with it a lot and think its spot on, while i can heal toe, its nice to have the button when in really tight roads going back and forth fro 2nd to 3rd (like the dragon) will play more from 4th to 3rd and see if i can get mine to act weird

Neb

I have experimented with this, and you are right it is inconsistent. I think it only rev matches if the gear and engine speed requires rev matching, if it's close 500rpm difference or your foot is on the brake already and slowed the car enough it won't. I agree it does not do it all the time.

Wild Weasel

It definitely won't if you're going to fast for the selected gear. The old system didn't either. I mean... what should it do? Just pin it to redline and let you blow it up? That's not an issue. That's at least predictable (and good) behaviour.

HenryPcar

It is still a stupid computer running on software within the parameters of situation. Just saying that perhaps the software algorithm can't cover all the basis.

Wild Weasel

There's more to it. The old one covered all the bases just fine.

I'm not saying this one is worse. I'm betting that if you're driving really well, this one is probably better. I'm sure that if I could ever understand why it does the unpredictable things it does, then I could work with it and be perfectly happy.