Just how bad are the MR 6-Speed Transmissions?
Jun 28, 2008, 10:48 AM
#17
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you should be fine with 420-500whp. i say 500 would be max and pushing it a bit if your not planning on building the transmission. It also depends on how often your are going to track it. Overall, I i think the tranny is fine as long as you dont abuse like crazy. May I ask what are some of the insane good deals you have found?
This....close thread
Jun 28, 2008, 11:06 AM
#18
Just to clarify, gears 1-3 are wider on the 6 speed compared to the 5 speed...which should mean they're stronger. Gears 4 and 5 are thinner on the 6 speed compared to the 5. 6th (obviously) doesn't exist on the 5.
People have had heat related issues with 4th gear, especially on the track. I have also seen some posts/thread with 5th gear syncho issues.
TRE has now started shotpeening the gears on the 6 speed, which should help...plus that service is reasonable (6 speed rebuild, last time I checked, was like $800).
With regards to the heat problem, I think a tranny fluid like the one I sell in my sig can help...it's a low temperature formula that was specifically designed to combat overheating issues in the NOVI 4500 transmissions. It is also the factory fill of the Dodge Viper. Plus, it had the added benefit of solving my 2nd gear notchiness issues. I won't put anything except the Castrol SynTorq LT in my vehicle...and my 6 speed has 86,000 miles on it
People have had heat related issues with 4th gear, especially on the track. I have also seen some posts/thread with 5th gear syncho issues.
TRE has now started shotpeening the gears on the 6 speed, which should help...plus that service is reasonable (6 speed rebuild, last time I checked, was like $800).
With regards to the heat problem, I think a tranny fluid like the one I sell in my sig can help...it's a low temperature formula that was specifically designed to combat overheating issues in the NOVI 4500 transmissions. It is also the factory fill of the Dodge Viper. Plus, it had the added benefit of solving my 2nd gear notchiness issues. I won't put anything except the Castrol SynTorq LT in my vehicle...and my 6 speed has 86,000 miles on it
Jun 28, 2008, 11:17 AM
#19
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hey quick question, i didnt know what to search cus i dont know what its called but when im around 3800-4200 rpm the shifter can come out of the gear w/o pressing the clutch, i kinda like doing this when coming to a stop. it doesnt feel damaging from the feel of it either, i heard somewhere, and it makes sense, that if it doesnt feel like its hurting the car then it probably isnt... but anyways, can anyone explain what im doing when the gear just slides out of the gear and into neutral?
thanks fellow evo brothers
thanks fellow evo brothers
Jun 28, 2008, 11:21 PM
#22
http://www.teamrip.com/TRE_6SPEED_EV...20SERVICE.html
I am sure Jon can add other things too like electro-polishing if you ask real nice like
I am sure Jon can add other things too like electro-polishing if you ask real nice like
Last edited by Erik@MIL.SPEC; Jun 28, 2008 at 11:25 PM.
Jun 28, 2008, 11:50 PM
#23
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http://www.teamrip.com/TRE_6SPEED_EV...20SERVICE.html
I am sure Jon can add other things too like electro-polishing if you ask real nice like
I am sure Jon can add other things too like electro-polishing if you ask real nice like
Jun 28, 2008, 11:55 PM
#24
An aftermarket oil cooler is not the solution for the 6spd. The solution is a 5spd.
Anyway, for the OP, the 6spd is a great transmission for the Evo unless you plan to road race it. However, it's not good for big WHP/WTQ like that. 4th gear is only rated to about 300 FLYWHEEL torque. You will like blow out 4th with that much power if you're dragging it. Yes, you will have to shift to 5th on the stock gear ratios before you even reach 120mph traps.
Anyway, for the OP, the 6spd is a great transmission for the Evo unless you plan to road race it. However, it's not good for big WHP/WTQ like that. 4th gear is only rated to about 300 FLYWHEEL torque. You will like blow out 4th with that much power if you're dragging it. Yes, you will have to shift to 5th on the stock gear ratios before you even reach 120mph traps.
Jun 29, 2008, 08:38 AM
#27
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An aftermarket oil cooler is not the solution for the 6spd. The solution is a 5spd.
Anyway, for the OP, the 6spd is a great transmission for the Evo unless you plan to road race it. However, it's not good for big WHP/WTQ like that. 4th gear is only rated to about 300 FLYWHEEL torque. You will like blow out 4th with that much power if you're dragging it. Yes, you will have to shift to 5th on the stock gear ratios before you even reach 120mph traps.
Anyway, for the OP, the 6spd is a great transmission for the Evo unless you plan to road race it. However, it's not good for big WHP/WTQ like that. 4th gear is only rated to about 300 FLYWHEEL torque. You will like blow out 4th with that much power if you're dragging it. Yes, you will have to shift to 5th on the stock gear ratios before you even reach 120mph traps.
Jun 29, 2008, 08:55 AM
#28
We had one done last winter. 'ottomatic' Evo IX MR, Stg 2 TRE 6 speed w/shot peen. The shot peen makes the gearbox very noisy for the first couple thousand miles - unfortunatly I think they shot peened reverse
. The car shifts excellent and it has not been broken since. It's been to several autocross events and the dragstrip since it was rebuilt.
I was looking at some 6speed tranny rebuild stuff yesterday and came accross jack's transmissions. There is some detailed info on his website about replacment of some ball bearings with roller bearings. I would love to hear some discussion about this and is this something that all of the guys do or just jacks transmission?
. The car shifts excellent and it has not been broken since. It's been to several autocross events and the dragstrip since it was rebuilt. I was looking at some 6speed tranny rebuild stuff yesterday and came accross jack's transmissions. There is some detailed info on his website about replacment of some ball bearings with roller bearings. I would love to hear some discussion about this and is this something that all of the guys do or just jacks transmission?
Jun 29, 2008, 10:52 AM
#30
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Doing fine here
Owned a 03 EVO, 05 MR, and 06 IX MR.
Like the 6 speed better. Better on road, and shifting is cleaner.
No problems with track use so far, several events on both six speeds, but VIR might be a little gentler than the five speed.
Considering the six speed was standard for most of the rest of the world, did they have many reliablilty problems?
Shawn
Like the 6 speed better. Better on road, and shifting is cleaner.
No problems with track use so far, several events on both six speeds, but VIR might be a little gentler than the five speed.
Considering the six speed was standard for most of the rest of the world, did they have many reliablilty problems?
Shawn