nice about time some one makes one for the evo. liberty gears and nrg tech have been making them for the hondas for a while.

 

wow I think I would feel bad putting oil in something like that..but seriously though cant wait to see results with one of those

 

looks expensive

 

791ft/lbs is where it went nuclear, but I've seen them break approaching 700ft/lbs. The factory case is just not very robust. A few hard launches and the cracks will start to appear around the shaft area. Not to mention how much the case is actually flexing, which means the internals are flexing, meaning less tooth contact and eventual failure.



We reengineered the case and all it's weak points, while still allowing all of the factory parts to bolt up to it. It should be significantly stronger than factory in just about every way.



Of course we will. Figure somewhere in the $3200-3500 range.



It's certainly not cheap. The block of high grade aluminum we use is $800 just for the INGOT all by itself, without shipping. Just the chunk of metal.

 

Looks good

 

Awesome work, it's good to see that some shops are still investing their time to make upgraded parts for the EVO.

 

The Evos get all the attention of all the chassis we work on. All vehicles we choose to specialize in get the same level of attention....Gallardo, Porsche 997, GTR R35, Supra, NSX, and Evo.

 

Beautiful.

 

And they still go POP.

The ability to withstand even a single 700 ft-lb AWD launch is not all that bad.

What about the other end of the shafts though. Isn't flex on that end going to be just as problematic?

 

The flex of the case comes from flexing around the flange, and flexing at the input shaft. You will actually see cracks around the hole on almost every factory trans making over 400ft/lbs. Basically the front bellhousing portion is really the key area. We can make the back half as well if anyone wants to pay for it.

 

^^ Can the factory trans casing really be that bad??....don't a lot of shops run a "factory style" housings (aka non billet) in a lot of shop drag cars?? Don't get me wrong i remember the thread were you blew your housing to pieces and your car is in need of this....but i didn't realize that "most cars making over 400tq" would have a cracking issues.....

 

Many of the cases I've seen that break, it has been after a gear grenade and the shrapnel being jammed in between the shafts and wedging them apart was the reason for splitting the case.

I'd be interested in seeing some examples of these 400 ft-lb induced cracks that didn't lead to transmission failures. I would assume you would see odd wear on the gear teeth to go along with the misalignment caused by case flex.

 

Interesting, nice job Insane Speed...definitely looking forward to some results from this...not like my car would need something like this ANYTIME soon...haha...

 

Next time you have a trans out, take a look VERY closely around the shaft and you will start to see tiny spidering of of case casting. We examined 5 different transmissions at a variety of HP and TQ applications and saw signs of case fatigue in literally every one. Obviously some....VERY obvious cracking, and some very light, but all present.

 

What about a transfer case? It seems many people destroy those faster than the transmissions.