Jump to content
SAU Community

Mitsubishi Evo Gearbox

simonvangruber
 Share

Recommended Posts

simonvangruber Rookie

simonvangruber

Posted
Posted

Hello forum users,

My current Evo 8 setup produces 260 awkw on a built 2L engine. My plan is to upgrade the turbo and the upgrade should produce around 370-380 awkw on E85.

My question is whether the standard 6 speed gearbox would be able to tolerate the above mentioned power level?

I have never launched the car and do not intend to in the future. Will the gearbox be able to cope with the power in normal everyday driving?

My preference is not to convert to a 5 speed or a dogbox.

Any advice would be appreciated.

Link to comment
https://www.sau.com.au/forums/topic/461954-mitsubishi-evo-gearbox/
Share on other sites
wildeagle44 Collaborator

wildeagle44

Posted
Posted

It will hold it but only for so long of course. They dont just magically break at a certain power its all in how you drive.

Your best bet it to contact sam from neat gearboxes. He was starting to do gearsets for the 6 speeds at a fair price. Theres also a good gearbox thread on the evo oz forums you might want to look at.

  • 1 month later...
Deza3000 Proficient

Deza3000

Posted
Posted

Not too sure if youve solved this issue or not, but the main reasons why the 6 speed fail was due to high oil temperatures and thinner 4th, 5th and 6th gears which resulted in premature wear. Usually caused by track days with lots of 4th gear pulls (also the reason why 3rd and 4th tend to go). I would probably get a oil cooler to start off with and do a lot of cool down runs between spirited driving sessions in order to prolong the gearbox life.

Just to put it in perspective, i know a lot of people running their evo 8MRs @ ~350awkw on stock 6 speed trans on e85 (imagine the torque) and the box is still going strong. Poor shifting, aggressive/improper launches and poor servicing are all ingredients for a dead box whether your stock or modified. Changing the oil often will also help too depending on how hard you plan on driving.

Also on a side note, bashing the gear shift hard enough in between 3rd and 5th can destroy 6th rendering 6th gear unusable. I believe this was notorious in the 9s, so id be careful and avoid doing this :P I put a 6 speed in my 7 and have done lots of research to see what the flaws of going to 6 speed were.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Black_CSR
      Wheel Sizes & Offsets For Skylines

      By Black_CSR · Posted

      ok so if i wanted to go 18's i would go for 8's  in front 30+ or 32+ off set at front and the back 9 would be ok? what offset should i aim for.. then can i do some  hunting for wheel rim choices..    If i get this - will this fit all around: Size: 18 x 8.5 +37 - n what tyres size tyre should i get for front n back?  
    • GoHashiriya
      From Japan and back to Europe, my sh*tbox R34 GTT

      By GoHashiriya · Posted

      Absolute f*cking nightmare. I had to take breaks constantly, and I was always pissed off when I got home. The line split in Italy on day 2 (we drove from the Netherlands), lol. Driving any narrow European town was... well, sh*t.   Appreciate it man. Here, I'll just drop a favourite from the load I took on Saturday.   I'll update here when things happen with the car, the thing is, with stock power and almost everything chassis-wise taken care of, there really are no problems. 268,000kms now and counting.  
    • Kinkstaah
      WTB R34 GTR Guard Liners

      By Kinkstaah · Posted

      Ah! I actually managed to snag a lightly used set.... that aren't so suitable for me right now. They don't work on a GTT without some cutting or creative heat moulding. I thought about reselling them myself cause I didn't want to murder them, but it looks like I'm probably going to attempt to murder them/melt them because I may as well. @GTSBoy @PranK can somebody close this thread?
    • itsmeyo
      WTB R34 GTR Guard Liners

      By itsmeyo · Posted

      Hey mate,  I have a set, one is slightly damaged but wont be noticable once installed.  Shoot me a message if your still after them 
    • The Bogan
      NC MX5

      By The Bogan · Posted

      I couldn't wait But, the black constant tension hose clamps were too thick and there wasn't enough clearance at the T/B and I couldn't get it to seat properly, so I had use a silver one there I also added some 3" silicone over the alloy bit that goes through to hole on the radiator support as it looked like it was sitting on the edge of the hole in the radiator support, I never noticed a rattle or anything, but there was a witness mark It is basicly done, and I can live with the silver hose clamp at the T/B, I will get a black clamp for the head vent though where it is attached to the bulkhead fitting  It never stops...LOL, only issue now with the shock tower brace is it slightly touches the under bonnet liner now, if I leave it it will either wear some paint off the brace where it touches, or damage the liner, so I removed the liner to see what I have to work with, with the liner removed I have about 20mm of clearance, but sadly the middle part of the underside of the bonnet is only dusted with paint and looks crap, so I cannot have that, but.... as I have a roll of Carbuilders premium under bonnet insulation in the garage laying around that is only 5.5mm thick (we were going to use it on the boys Patrol, but he crashed the front of it a few months and it was written off, hence why he now drives my old Honda Accord Euro), I'll use the OEM liner as a template and get the Carbuilders stuff fitted up to cover that dusted paint up
×
×
  • Create New...