[Silent]

Installed Evosport Pulley set, thanks to a board member and installed custom electrical fan using bmw oem parts..

 

[churious]

Nice! Do tell... what is the story behind the electric fan. :dunno:

 

[Silent]

Modified e39 fam srout, BMW 335 turbo fan, modified electrical plug was a bit modified. Original fan clutch in the trash. Took about 5 hours to make the fan fit perfect.

 

[Tj Hunter]

Modified e39 fam srout, BMW 335 turbo fan, modified electrical plug was a bit modified. Original fan clutch in the trash. Took about 5 hours to make the fan fit perfect.

DIY with part numbers?

 

[Richbob]

New Pulley do WHAT?

I've seen references to new pulley sets, but am not sure what they do to improve the performance of the engine. Can someone enlighten me?

 

[davidc]

what was the purpose of changing the fan?

edit: nvm...I assume by changing the pulley you got rid of the clutch fan.

 

[mattmartindrift]

I've seen references to new pulley sets, but am not sure what they do to improve the performance of the engine. Can someone enlighten me?

under or over-driven accessories, and lighter weight assemblies (sometimes). most of which reduce parasitic drag on the engine.