I have (should say HAD) a fully built transmission. Has all the goodies that are listed in the knowledge center and until recently has performed perfect. Over winter I purchased a high stall TC and got it installed this spring. It was supposed to be rated around 4200 rpms. I had a difficult time installing the TC, but eventually got it lined up and fully installed. Once trans was in I started the van up and the transmission was making a loud howling noise. After a few test runs around the block the trans sprung a leak from the input shaft seal. Took it to the trans shop that built my trans, they replaced the seal and rebuilt my trans pump. I requested they keep labor costs to a minimum so they didn't dig through the trans more than a visual inspection with trans pump out and pan off. But said fluid looked good, and internals looked good from what they can see.
Fast forward to last weekend, finally get a chance to get van ready for a track day. I'm working on the 2 step and trying to get my big --- turbo to spool. I was doing a brake torque, had the RPM's up to around 4800 rpms, had about 10 psi and I heard a snap. Engine free revved and I quickly shut the engine down. I get out and find fluid pouring from the cover for the transfer gears. I have not dug into the trans at all, so not sure what exactly happened, but thats not my main concern right now, just sharing for a little background info.
What is everyone's opinion on the TC? Could the high RPM's have caused something to break internally? is this TC cursed? I've purchased another turbo, a smaller one, which should be much easier to spool. I have a spare transmission that has been built, but I have no idea what the specs are on the build. I'm going to put the spare trans in the van, but don't want to use the high stall if it's going to cause more problems. At the same time, I'm not sure if a stock torque converter will be able to allow the motor to build boost for a launch even with the smaller turbo.
Look forward to hearing everyone's thoughts.