MT Upgrade
 

It seems like every part of this car has a stronger upgrade for it aside from the manual transmission. I thought by now there would a PPG set or something out for this transmission.

Aside from swapping it out for a stronger one that includes custom fab work and more headache than its worth, is there a way to make this transmission handle a decent amount of power?

The crawford build is holding up to 450hp, so I'd say it isnt doing too bad
just my 2cents

the crawford build blew up twice, and wrecked a mclearn :). The Tranny isnt rated for high hp, and has been a hit or miss with people at high HP

Evasive is working on a replacement trans. Don't know details though.

I have seen very few failures, so I don't know where this view is coming from. What do you consider "a decent amount of power"? Have you been talking to Don & John?

The fundamental issue with "upgrading" a transmission internally is, the real limit is found when the case starts to deform from the pressure of the gears trying to push eachother away.

Yeah Don has a tranny swap available but im more specificly interested in making the stock unit stronger, if at all possible.

fixed your post.

Evasive Motorsports? Talked to them and they have no plans on doing any replacements.

http://forums.nasioc.com/forums/show....php?t=2395474

This sort of thing is offered for the subaru 5speed.

https://lh6.googleusercontent.com/-w...%2520Sides.jpg

https://lh6.googleusercontent.com/-L...0/DSC_5980.JPG

mine holds up well i changed the fluid and added the stiff trans mount :) still going

Adding a pump and oil cooler will go a long ways towards your transmission holding up under higher loads.

When I was researching transaxles for a race car I wanted to build, I found Porsche transaxles rated for 180hp were magically uprated to 219hp with the only difference being an oil cooler.

A simple, inexpensive setup could use tapped filler and drain plugs with a pump. More elaborate setups have internal spray bars and other stuff.

Bad juju happens when things gets hot.

link to it blowing? Thanks! :thumbsup:

Yeah it does. When we flat bottom our STi race car the transmission always mysteriously fails so yes cooler gear oil does improve longevity. I'm not sure it miraculously increases it's power capability for something like drag racing or dyno work however.

Agreed. For drag racing or dyno runs with huge power, a cooler probably won't help much.

For most of us though, with increased power from FI, we're probably nearing the max torque capability for the transmissions, and the ability for the trans to handle big torque goes down quickly as the heat goes up.

For track cars I'd say it would probably be most helpful.