powerdriver

Are EVO transmission gears shot peened from the factory?

I got off the phone with a trans shop and I was told that Mitsu shot peen's the gears from the box, i'd just like to confirm this. From what I heard from another source, it isn't..
Having the same gear shot peened twice would hurt the stability of the gears, correct?
I just need a bit more insight on this.

WRC-LVR

iTrader: (1)

Jon at TRE would know or so would shep at Shep transmissions or someone at Jack's transmissions

94AWDcoupe

iTrader: (125)

evo gears are not shot peened from factory

powerdriver

I started off by requesting if the gears could be shot peened since I have a 6-spd and would like to be able to run a bit more power without having to worry, I was notified that it was already shot peened from the factory and that if I were to do it again it would cause the metal to become brittle. Wasn't really sure if that was correct or not, hence wanting to confirm it.

chu

iTrader: (72)

Shep offers the shot peen service when doing the rebuild, so I doubt its shoot peened from factory.

powerdriver

TRE* Offers shot peening. Shep offers REM.

For all those that have had a 6-speed built, which shop do you recommend for a road race car that will see about 400whp/350wtq

barneyb

If I had a 6-speed and was going to race it - no undercover.