Looking for all EVO 8, 9 people with 6 speed still.
Jul 26, 2012, 03:53 PM
#31
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6 speed MR, 2006, with 193K miles...putting down 475/375 with an MAP EF4 and pump gas; on stock block and stock trans with ACT HDSS Clutch. She runs great! I am keeping the TQ down until i can upgrade the trans but I love it!
Last edited by bassnuker; Jul 26, 2012 at 03:55 PM.
Jul 26, 2012, 09:38 PM
#35
my 6 speed trans on my IX still feels perfect 376whp 349ft/lbs 51000 miles on the car AMSOIL in the Trans works great 
Last edited by connor4200; Jul 26, 2012 at 09:42 PM.
Jul 27, 2012, 03:45 AM
#37
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Ecu boost all the way! I almost switch to an MBC but I am glad I didn't. As far as my setup; mostly bolt ons. Ets 3" FMIC, Ets uicp and licp, fic 1200 cc injectors, walb 255, spark tech ignition, map o2 housing with dump tube, Meghan downpipe, test pipe and Hks ti exhaust, and the mother of all turbos map's stock frame EF4. I also have short route uicp that I can't use yet because instill need the mini battery and a new BOV. I then got tuned up by Tom at tscomptuned @ 28psi. I like the setup for what I use it for..daily driving. The guy that had this car before me auto crossed it and has it set up for that so if I wanted to I could. However, the wife wouldn't let me keep my old car as a dd so this is all I have and I'm not trying to break it!
Jul 27, 2012, 04:40 AM
#38
I've researched a lot into this topic. My impression is the outright power doesn't really kill the trans, its how the trans is treated. If you use a harsh clutch and you drive like you win races every weekend then its not long for this world. If you just take it for sunday cruises and do pulls every now and then it should be fine. I remember a while back there was a 6spd evo with something like 100k miles and a gt35r pushing 540ish whp and high 10s on the strip. I'm not sure how many passes its made and how its driven the rest of the time but I thought that was pretty impressive.
Theres a thread by razorlab about the 6spds. He went through a stock one, a TRE "rebuilt" one, and finally switched to a 5spd. From what I gather in that thread the lower oil capacity plus the extra running gear and thinner gears in the 6spd develops excessive heat and fatigue. And eventually will cause the trans to fail if driven hard.
Many people like me have blown it with a stock engine / turbo combo. I don't think I was pushing any more than 310whp at the time but I did many track days at road courses doing 30min track sessions reaching 110mph every 30-45 seconds or so, and then heel-toeing down to like 30mph and so on. With a ACT HDSS which is very unkind to drivetrains. And that caused a bearing to go out in mine.
Theres a thread by razorlab about the 6spds. He went through a stock one, a TRE "rebuilt" one, and finally switched to a 5spd. From what I gather in that thread the lower oil capacity plus the extra running gear and thinner gears in the 6spd develops excessive heat and fatigue. And eventually will cause the trans to fail if driven hard.
Many people like me have blown it with a stock engine / turbo combo. I don't think I was pushing any more than 310whp at the time but I did many track days at road courses doing 30min track sessions reaching 110mph every 30-45 seconds or so, and then heel-toeing down to like 30mph and so on. With a ACT HDSS which is very unkind to drivetrains. And that caused a bearing to go out in mine.
Jul 27, 2012, 06:03 AM
#39
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Yea the track is brutal on transmissions....especially the strip! Everyone wants a fast drag evo but don't think about the consequences of dragging. I agree with you when you said that its how you treat your tranny...however, i still want an upgraded one just so i know im safe if i need to get on it.
Jul 28, 2012, 01:58 PM
#42
2006 Evo 9 MR, bought new, currently at 50000 miles. ACT HDSS, BBK full, E85, putting out 445hp/366ft-lbs on a Dynojet. I've never taken it to the strip, but I've gone to lapping days a few weekends a year, and daily driven.
We'll see how long it lasts.
We'll see how long it lasts.
Jul 29, 2012, 08:33 AM
#44
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What about a rebuilt 6spd transmission from Sheptrans - is there any soft hp/tq cap on those? Does there service increase the hp/tq capacity of the transmission or do they reall just get the transmission back to near original spec?
