OEM-level 8HP swaps in E-series cars

nibbtastic

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Aug 12, 2023
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My car is an E90 335 with an N55 engine. Are you saying that if I use the 8HP45 transmission, which is compatible with the N55 engine, such as the transmission used in the F35, I won't need to use cantcu to achieve it?
They were talking about a physical adapter plate between the engine and transmission. You still need to facilitate communication between the transmission and the ECU, which is what this device does.
 

YEG 2008 N54

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Sep 21, 2023
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ZF 8 HP 70 transmissions are in ram 1500 3.0L diesel trucks.. any reason they would not be useable in my E 90 335xi 6AT

I've received a reply from someone, he said yes they will soon have software to run the transmission, but it would need an adapter for the motor and transferase.
i guess that seems obvious. :dizzy:
 

SLOWESTN54

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Feb 9, 2021
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2007 E92 335i
I've received a reply from someone, he said yes they will soon have software to run the transmission, but it would need an adapter for the motor and transferase.
i guess that seems obvious. :dizzy:
i don't think you can use any 8hp70, it has to be a bmw specific one. And at that i believe you can't use the cheaper one out of a 550i, it has to be out of a Diesel inline 6 bmw. let me know what you find and how it works out. Im intrigued by this swap but it was very difficult to find a Rwd Diesel 8hp70 in Canada.
 

YEG 2008 N54

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Sep 21, 2023
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i don't think you can use any 8hp70, it has to be a bmw specific one. And at that i believe you can't use the cheaper one out of a 550i, it has to be out of a Diesel inline 6 bmw. let me know what you find and how it works out. Im intrigued by this swap but it was very difficult to find a Rwd Diesel 8hp70 in Canada.
The guy I emailed produced the conversation kits for this topic. He says it would work technically, but the front and back would not be mountable. Meaning there's no adapter plates.
As for the diesel aspect, I think that would affect what the lock up speed on the torque converter is.

What did u pay for that transmission?