ZF HP8xx

[tobmag]

Hi.

Just got my eyes on this tranny as it seems to be available on the scrapyards today...

Fitted in many cars from -08? but as I see it most possible to get one from a BMW, will take a 450nm tq unless you find one from a Bentley or a RR that will take 900nm.

This is a 8 speed tranny but just using 2 clutches and 3 breaks making it fairly easy to control??

Been on Google now for quite some time but it seems that the info is very limited.

Anyone out here that is sitting on more in depth info on hydraulics and electronics??

BR//Tobmag

[tobmag]

Found this from Audi...its interesting but a bit expensive

http://admin.audionlinetraining.com/Upl ... ission.pdf

BR//Tobmag

[Coyote_ar]

Hi Tobmag, so did you ever got to work on the 8HPxx with megashift?

[tobmag]

I did look at this for a while but dropped it since the most common ones (BMW etc) cant handle that much power unless you find one from a RR or Bently....but you can then imagen the price

Na, I'm staing with my 4L80E since its quite cheap to get it to handle to 1000hp


BR//Tobmag

[Coyote_ar]

Yeah, the 8HP45 wont handle THAT much torque. 8HP75 does handle more, but again not meant for 1000hp applications. Only the 8HP90 will handle that.

Did you find any useful information while you were looking into this?

[tobmag]

Hi.

No I didnt look around for any more info, probably you can ask at any BMW or Audi community/forum.



BR//Tobmag

[Coyote_ar]

im trying that, but no luck so far. most enthusiasts either avoid AT cars, or just remove them and replace them with a MT.

putting in a 8HP is not something has considered a good idea yet

but ill keep trying to get some info on the inner workings of that transmission.