Some time ago, we have worked on Alex Teleguta's drift car, a beautiful E36 with a 700whp turbo M50b30 engine.
He decided to install a 8hp70 transmission in his car. The transmission seemed to have very low mileage on it, but it came from a front crashed car.
After we had finished the engine tuning on dyno, we have tried to see some gear change capabilities of this transmission, by puting load on it with the help of the handbrake, because this type of dyno cannot load the transmission like a rolling dyno can, or like on the street .
Shifting from 2nd to 3rd gear, as you can hear, something odd happened, like the trans slipped hard, and when 4-th gear was engaged, the trans just exploded. Luckily the oil was not very hot, almost 55 degress Celsius.
After we opened the trans, we saw that D clutch had some problems, like a snapped circlp that holds the clutches in the basket, a broken disk, and warped disks.
That seemed to be the problem, circlip failed and D-clutch ejected from basket , hit the aluminum drums and broke them.
So lesson no.1 - when using a SH trans, allways check it internally for problems, and rebuild it.
Lesson no. 2 - allways use kevlar blankets on transmission , that are pushed hard.
Now Alex have changed the trans with a good one, and is having fun.
Негізгі бет ZF 8HP70 transmission explodes on Dyno !
Пікірлер: 27