Hey guys,
I wanna get my 5 speed transmission for my Evo8 rebuild since the 4th gear seems to be grinding and locking me out at high rpm ( over 6k ).
I spoke to my mechanic and told me most likely the synchro is damaged.
So question for any of you guys here that replaced your synchros, did u went with the oem or did anyone try the synchrotech synchros? Please any feedback would be appreciated. I did some research on cost and the synchrotech are not that expensive didn't get the cost for the oem but i heard price is similar .

 

Maybe you have, but wanted to make sure youve seen this thread

https://www.evolutionm.net/forums/ev...st-thread.html

 

I did but this thread is so long i didn't get to the conclusion lol and never read the whole thing.

 

TRE showing what Carbon synchros are capable of.

If you want the best shifting trans, just send it to TRE to let Aaron and Jon work their magic on it.

 

synchrotech shift better but wear faster

 

TRE doesn't seem to be a fan of the carbon synchros then

makes me re-think keeping mine to put in the transmission soon...

 

Wow I never knew that. I was curious to get Jon's .02 on those after he tested them. Crazy indeed. Sooner or later Ill be sending him my trans. Hate pulling the thing out but I'll be excited when the time comes.

 

I heard of their names mentioned before but don't know much abt them.
Where are they located?

 

Kalamazoo, MI


http://teamrip.com/index.html

 

guess i will go with the oem synchros man !

 

thanks!!

 

WOW! That is some crazy gear wear. We have sold and installed thousands of carbon synchros and I have never seen anything like this before. Even when abused or run with incorrect lubrication the Synchros will normally burn the carbon but not damage the gear cone. Did the rest of the gears also show this type of wear? Was it an OEM gear or aftermarket? My guess would be that this was an issue with the gear hardening rather than from the synchro. In either case I would be very interested in more information about the gear failure in the picture posted.

 

That would be an OEM gear, that's all TRE uses unless you buy a dog box. That being said, he only stated it was a carbon synchro, not necessarily yours. But, if you call TRE, I'm sure Jon would be more than happy to discuss it at length. He's hard to get off the phone sometimes once you get him on LOL

 

I've got a call with him sometime in the next few days to ask this exact question, I'll let you know what he says. Regarding hard to get off the phone, I'd rather have that than someone who just wants to get off the phone! Means he's passionate about what he does

 

I completely understand those who only want Genuine OEM parts as I have many customers like this as well, but I do feel we have designed and developed a very high quality part that will benefit those who are looking for something more performance based. I look forward to getting more details from TRE about this gear after you talk to him. My guess is that it is a reverse gear from an EVO X with an OEM carbon synchro. The grooves are all in line as is the OEM synchro while ours is designed with offset friction pads in a 4,3 pattern to evenly distribute the force across the gear cone.