engine and drivetrain Bmw M49 (Engine Dyno)

[markmac]

Off topic for o2's, but not off topic for anyone who likes cool BmW stuff (especially race stuff).  Enjoy!

 

http://www.alpinabmw2002.com/2013/06/bmw-m49-engine-dyno.html

 

 

[Rocan]

nice! is that running on methanol? love the slide throttle action. 

[markmac]

No ethanol, just high octane (probably 110 or so) race fuel.  Pretty cool to see how the fuel is atomized as the slide opens up and then sucks it into the intake.  You can see why that type of induction is so efficient for racing - at wide open throttle nothing to impede the fuel/air going into  the intake .....wheras with butterfl;s for carbs or throttle bodies you have the throttle shaft and then the buttefly plate.

 

www.alpiinabmw2002.com

[TobyB]

M49?

 

Love the little drive belt for the distributor on this one...

 

 

t

Edited June 7, 2013 by TobyB

[markmac]

Yep, both M49's, the image above as well as the video.  I have seen the pic you posted but really hadn't noticed that this motor was set up to be run canted (stock position) like any standard CS/L, o2 - you can tell by the way the slide throttle manifold is angled.  Schnitzer made slide throttles for these engines as well which is what the motor on blog is using.  Thos slides were set up for the engine to be run vertically (straight up and down).  For some reason I was thinking that drive belt might be driving the injection pump.....?

 

www.alpinabmw2002.com

[TobyB]

oh, you might be right.  hard to tell from that pic.  Wacko belt, nontheless...

 

t