Topic: Engine

Fan Clutch

Article by: Johan Article applies to: all BMW models with a viscous clutch cooling fan. Problem: It’s very easy to spot a bad fan coupling. The engine temperature will rise when standing in traffic. On my 735i it went to about the 3/4 mark. Apparently the electrical fan on the […]

S38 ITB Syncronization

Article by: Igor Kostenuk Article applies to: all BMW models with the S38 Motorsport engine. I decided to pull this job on my M5 a couple days ago and document it as much as I could. This job requires a couple of special tools which I will list and other […]

S38 ITB Syncronization

Article by: Igor Kostenuk Article applies to: all BMW models with the S38 Motorsport engine. I decided to pull this job on my M5 a couple days ago and document it as much as I could. This job requires a couple of special tools which I will list and other […]

M30 Big Bore Throttle

This throttle will fit both manual and automatic transmission cars. The throttle has been bored out 3mm all the way through and trumpeted on the intake side. Also, one side of the butterfly arm has been cut out to increase flow and a new butterfly plate has been made to […]