I have a B18C in my EK hatch. Now... I do drive my car hard and all.. But I never have once grinded my 3rd gear or 4th gear.. Then all of a suddent... 3rd and 4th gear grind when tranny temp gets hot.... Running royal purple fluid in it. I have no Idea why. I have a Evolution aluminium flywheel and an ATC 6 puck sprung clutch... I have heard that ATC's clutches were know for not disingaging all the way... but I don't think thats the problem.. I have no idea what is going on... since 3rd and 4th gear share the synco hub... I think that is going bad....

Also... Some times when I let my clutch out... it make a loud grapping sound.. But it doesn't do it all the time... I think my 6 puck is eating away my flywheel surface... Clutch still grabs fine and all.. ???? I dunno... ***** expletive up.

 

have u tried changin the fluid again