M50 / M52 conversion

General E30 related discussions -
Please put technical questions in E30 Tech Help forum below

Moderator: martauto

Post Reply
User avatar
theretroking
E30 Zone Regular
E30 Zone Regular
Posts: 276
Joined: Fri Dec 18, 2009 11:00 pm

Thu Mar 22, 2018 9:34 pm

Considering doing a conversion on my 318 touring, anyone know which is the better engine to use and what costs are involved including labour.
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49358
Joined: Mon Jan 10, 2005 11:00 pm

Thu Mar 22, 2018 11:10 pm

The M52B28 , single vanos is the one to go for. 300cc more than any M50, and has the advantage of the much improved Siemens engine management, over the M50 Bosch version.
No significant differences in the conversion costs between the two, other than if you started with an ex E34 M50B25 you'd have the sump sorted at no extra cost.
User avatar
theretroking
E30 Zone Regular
E30 Zone Regular
Posts: 276
Joined: Fri Dec 18, 2009 11:00 pm

Fri Mar 23, 2018 12:32 am

What would the whole conversion cost, thanks for the above information.
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49358
Joined: Mon Jan 10, 2005 11:00 pm

Fri Mar 23, 2018 9:52 am

theretroking wrote:What would the whole conversion cost, thanks for the above information.
Can't help you with the total cost, since I've never paid for work on cars.
When I did my first conversion, using a written off engine donor, I possibly could have made a small profit on the exercise, since the parts left over were potentially worth more than I paid for the donor, but those days are probably long gone now, compounded by the value of suitable sumps, etc. these days .
Post Reply