well an update-
i did that adjustment method and there is a bit of improvement but not 100% fixed.
and also the drag test i did showed that i dont have any clutch drag issue.
as a conclusion of those two results that i came up with-what do you suggest me to do?
is it trans related?is it clutch related?maybe it worth to strip the trans and see how the fly wheel doing ?dunno....
car is still under warranty but i try to fix up things before i go to the dealer since i dont trust them and when they fix one they broke other they are bunch of retards(most not all of them)

Thanks for the update. It could be that the plate that guides the shift lever into the gear slots if "off" and needs adjusting? It could be that the 3rd gear synchronizer is worn.

If the clutch adjustment seemed to help, maybe more adjustment is in order (just be sure to leave some free play at the top).

You might consider taking the car back to a dealer and explain to the service manager that you would like his/her best trained mechanic that is familiar with that car, to work on it.

I hope you get it sorted out soon.


humfrz

1, 2, and 3 have triple cone synchros from what I've read, so that's probably part of why they are different than 4, 5, and 6.

dammit, humfrz.

You are actually shifting too slowly. Inexperienced careful owners often mistake shifting gently with shifting slowly. I will do my best to explain/support my argument. This will either cure the issue, or it will help us troubleshoot. Then humfrz will bookmark this thread and refer to it future owners who want to better understand their transmissions.

One good thing about shifting carefully is the reward felt from a well-executed shift. It also increases the number of miles - or more precisely, the number of shifts into each gear - it will take for your transmission to break in. Does it improve the overall service life of the transmission? I don't really know. It can't hurt.
__________________________


The syncros are carefully sized for this application. They don't give you any extra juice to make up for sloppy shifts. The gearbox is also more sensitive to viscous drag than any other I can recall. Opinions vary about how to manage this. I've read about how it likes to be man-handled, or how it only works well when you shift at a higher rpm, blah blah blah... I say that if you have a realistic idea of what's going on in there, you can tailor your shifting style according to operating conditions and potentially extend the vehicle's service life overall. For instance, with what I've learned about the oiling system, I shudder at the idea of running this engine cold above 2500 rpm. The whole idea of running it up to 4K just to get into second is ludicrous.


Do I have your attention?

Damn, grumpy, did you run out of fiber pills - again?


:iono:


humfrz

You know the drill. Why me?

You just like managing.

Did you just respond to your own question?

What do you think?

I know on my 2013 (~40k) at lower rpms, say 2000 RPM (or about 10 mph in first gear) i need to very slightly pause or i'll get kind of what OP is describing. It's definitely not a grind but it doesn't feel very nice through the shifter. It's only 1-2 shift.

At 3000+ RPM it doesn't matter, i can shift as quick as i want.

Try not pausing in neutral at all. Even first thing in the morning, if you flick it through neutral and immediately put pressure on second gear, it'll slip in while the input side is still spooling down.

If you pause even for a split second, you're pushing the gears through the thick oil with the syncro clutch. Then you have to be really forceful, or double clutch to spool up the input side and try again.

I thought this turned into the rhetorical question thread. ;)

Spuds: sure on 3rd also having tripple cone synchro? I thought that only 1st & 2nd one were.

Third too.

but other brz's doesnt feel like mine so i assume its not its normal behaviour.