6 Speed Tranny a weak link?
Originally Posted by DaWorstPlaya
Top End Evo: I used to own a WRX, that my brother now drives. It's still on the original tranny. The reason the WRX tranny's gave up has nothing to do with case flex, and everything to do with gear width and tiny teeth, this has been discussed several times in countless WRX forums, those who though case flex was the issue are wrong. The RA gearset helped a little by improving the tooth profile. Put too much power and the gears would start to fatigue. BTW, I never called myself a GURU. I'm here just like anyone else trying to get to truth about how much powerlevel the 6 speed can hold. If you own a 5 speed then the issues with the 6 speed don't even concern you, please stop cluttering this thread with your opinion as you aren't adding anything factual to help.
smack evo: The pic you posted is of Voidhawk's tranny, his sychro got fried because his wife kept resting her hand on the shifter the entire time she was driving. I haven't had a single issue with it being hard to shift (only when its really cold out). If anything shifting gets easier and smoother as the tranny fluid warms up at the track.
smack evo: The pic you posted is of Voidhawk's tranny, his sychro got fried because his wife kept resting her hand on the shifter the entire time she was driving. I haven't had a single issue with it being hard to shift (only when its really cold out). If anything shifting gets easier and smoother as the tranny fluid warms up at the track.
please find me a post in here where i was talking about wrx and gears and quote me please...
Originally Posted by DaWorstPlaya
Top End Evo: I used to own a WRX, that my brother now drives. It's still on the original tranny. The reason the WRX tranny's gave up has nothing to do with case flex, and everything to do with gear width and tiny teeth, this has been discussed several times in countless WRX forums, those who though case flex was the issue are wrong. The RA gearset helped a little by improving the tooth profile. Put too much power and the gears would start to fatigue. BTW, I never called myself a GURU. I'm here just like anyone else trying to get to truth about how much powerlevel the 6 speed can hold. If you own a 5 speed then the issues with the 6 speed don't even concern you, please stop cluttering this thread with your opinion as you aren't adding anything factual to help.
smack evo: The pic you posted is of Voidhawk's tranny, his sychro got fried because his wife kept resting her hand on the shifter the entire time she was driving. I haven't had a single issue with it being hard to shift (only when its really cold out). If anything shifting gets easier and smoother as the tranny fluid warms up at the track.
smack evo: The pic you posted is of Voidhawk's tranny, his sychro got fried because his wife kept resting her hand on the shifter the entire time she was driving. I haven't had a single issue with it being hard to shift (only when its really cold out). If anything shifting gets easier and smoother as the tranny fluid warms up at the track.
I dont know what fourms your reading honestly
? Its a "Fact" the case flexs and thats the reason why people swap them out for the jdm sti trans or usdm sti trans. Instead of putting in stronger gears because guess what if you launch it hard they will break to. Yes i will agree the wrx gears are not strong to start with but, the trans case is where the problem lies.
Originally Posted by Top_End_EVO
Dude what are you talking about? i never called you a guru and i never even spoke of a wrx tranny. I never even mention wrx in any thread posting in these forums. I never talked about case flex.. I think you mistaken me for someone else talking about wrx's. all I did was simply state that this thread is funny and that it's causing a panic to MR owners, and I was suprised to see one 9 sec 6 speed evo... damn dude why u calling me out like that.. I didn't say anything to you...
please find me a post in here where i was talking about wrx and gears and quote me please...
please find me a post in here where i was talking about wrx and gears and quote me please...
LOL top_end_evo he was talking to me i think
Originally Posted by ToMuchBoost
Spoken like a true noob ? Wrx tranny flexs and the gears dont line up correctly and end up breaking.. even people with RA gears sometimes break thoes to because its a case problem not a gear problem.
As for the grinding i never said 5 speed gears were weaker. I said they tend to have more problems aka grinding ect.
It seems to be heat is the reason the 6 speed gears are breaking not that they are weak.. you are starting to remind me on the guys on nasioc that think they are guru's
..
? Wrx tranny flexs and the gears dont line up correctly and end up breaking.. even people with RA gears sometimes break thoes to because its a case problem not a gear problem.As for the grinding i never said 5 speed gears were weaker. I said they tend to have more problems aka grinding ect.
It seems to be heat is the reason the 6 speed gears are breaking not that they are weak.. you are starting to remind me on the guys on nasioc that think they are guru's
..
ok now back to the main subject please...
has anyone figured out a good reliable fix for this issue with the 6 speed?
I plan to run mine for a few events at Watkins Glen
and I dont want to worry about losing the transmission while Im there
thats a whole 6 hour drive away
or rather
what would I need to switch over to a 5 speed in my IX MR
has anyone figured out a good reliable fix for this issue with the 6 speed?
I plan to run mine for a few events at Watkins Glen
and I dont want to worry about losing the transmission while Im there
thats a whole 6 hour drive away
or rather
what would I need to switch over to a 5 speed in my IX MR
Last edited by 555R; Nov 5, 2006 at 06:49 PM.
Originally Posted by GEARS
I'd hope to see temps stay below 200*F. Where that probe is located the transmission receives a healthy bath of oil from the final drive gear.
Driving it semi hard in the twisties, mainly 2nd and 3rd gear with some short 4th gear bursts the temp went up to 181F.
Two 4th gear pulls on the highway brought the temp up to 188F.
This is without the cooler and with approx 1.9qts redline MT-90 and approx .4qts redline shockproof heavy.
It will be interesting to see what it hits at the track.
Originally Posted by DaWorstPlaya
smack evo: The pic you posted is of Voidhawk's tranny, his sychro got fried because his wife kept resting her hand on the shifter the entire time she was driving. I haven't had a single issue with it being hard to shift (only when its really cold out). If anything shifting gets easier and smoother as the tranny fluid warms up at the track.
5-speed*15 days=no problems
6-speed*25 minutes=cooked syncro
i don't mean to sound like a dick it's just that i'm tired of reading posts about how there isn't a problem or people are using the wrong fluids, don't know how to drive, or whatever else.
i'm not saying there is a problem with all 6-speeds since there could just be a bad run of some internals but i know that i went through one and things seem to be acting up again.
Originally Posted by Top_End_EVO
Dude what are you talking about? i never called you a guru and i never even spoke of a wrx tranny. I never even mention wrx in any thread posting in these forums. I never talked about case flex.. I think you mistaken me for someone else talking about wrx's. all I did was simply state that this thread is funny and that it's causing a panic to MR owners, and I was suprised to see one 9 sec 6 speed evo... damn dude why u calling me out like that.. I didn't say anything to you...
please find me a post in here where i was talking about wrx and gears and quote me please...
please find me a post in here where i was talking about wrx and gears and quote me please...
TooMuchBoost: I don't want to take this thread out of topic about the 6 speed by injecting useless WRX tranny issues, so let's just agree to disagree ... leave it at that.
Razorlab: Going to a thicker tranny fluid and one that is synthetic will probably help with the longevity of the gears in the 6 speed. Goodluck and I really do hope your tranny holds up to the rigors of the track. Keep us updated in the other thread ...
smack evo: I don't know how you drive as I have never personally seen you drive or know you. Then again, I would hope that someone who tracks their EVO is proficient at driving stick and can easily do either a "heel and toe" or "double clutch". As you said, it may be that the synchros aren't up to the task or some of them have factory defects.
I've also seen a lot of first time manual drivers learn to drive stick-shift on the EVO, 2 that I personally know of in my region.
But if each of us reports back with our experiences we can paint a better picture.
Last edited by DaWorstPlaya; Nov 6, 2006 at 07:58 AM.
Originally Posted by DaWorstPlaya
Razorlab: Going to a thicker tranny fluid and one that is synthetic will probably help with the longevity of the gears in the 6 speed. Goodluck and I really do hope your tranny holds up to the rigors of the track. Keep us updated in the other thread ...
Originally Posted by DaWorstPlaya
smack evo: I don't know how you drive as I have never personally seen you drive or know you. Then again, I would hope that someone who tracks their EVO is proficient at driving stick and can easily do either a "heel and toe" or "double clutch". As you said, it may be that the synchros aren't up to the task or some of them have factory defects.
I've also seen a lot of first time manual drivers learn to drive stick-shift on the EVO, 2 that I personally know of in my region.
But if each of us reports back with our experiences we can paint a better picture.
I've also seen a lot of first time manual drivers learn to drive stick-shift on the EVO, 2 that I personally know of in my region.
But if each of us reports back with our experiences we can paint a better picture.
Originally Posted by JohnBradley
PPG will probably end up doing it. Quaife will also probably follow suit. Now what would be trick is a 5 speed conversion inside the 6 speed case with ALOT bigger gears.
EDIT- It appears both of our questions have already been considered and answered:
http://www.ricardo.com/general/latestnews.aspx?id=11
EDIT- It appears both of our questions have already been considered and answered:
http://www.ricardo.com/general/latestnews.aspx?id=11
I wouldn't want a straight cut gearbox for it... those are a PITA when it comes to having to rebuild it every 5000 miles.
I still want the ability to drive it on the street.
Originally Posted by razorlab
So today I drove the evo all day long after finally installing the temp gauge. On the highway cruising at 75mph in 6th gear the transmission sits at 178F.
Driving it semi hard in the twisties, mainly 2nd and 3rd gear with some short 4th gear bursts the temp went up to 181F.
Two 4th gear pulls on the highway brought the temp up to 188F.
This is without the cooler and with approx 1.9qts redline MT-90 and approx .4qts redline shockproof heavy.
It will be interesting to see what it hits at the track.
Driving it semi hard in the twisties, mainly 2nd and 3rd gear with some short 4th gear bursts the temp went up to 181F.
Two 4th gear pulls on the highway brought the temp up to 188F.
This is without the cooler and with approx 1.9qts redline MT-90 and approx .4qts redline shockproof heavy.
It will be interesting to see what it hits at the track.
I can't possibly see 10 degrees causing a problem.
I REALLY am doubting that heat is playing a role in this now after seeing this data.
A temperature increase to cause problems, to me, with an oil lubricant would have to be something like 100-200 degrees over a normal running temperature.
There is absolutely no way an increase of 10-20 degrees causes these failures.
Originally Posted by razorlab
10 degrees? Sure, on the street after two 4th gear pulls. Multiply that times about 50 and you get one open track session.
I just really dont know if it'll go up that much.
How soon before you can get some track data?