BMW 540i - Rebuilt V8 engine for ethanol fuel. Version 2 [High Definition]

A deafening roar from the rebuilt 4-liter V8 (M60) when it is started after the rebuilding to 100% ethanol (E85) operation. After a 1.6 mm face milling of cylinder heads is the compression ratio now 12.5:1 (original 10:1). Completely rebuilt fuel system for higher fuel flow and pressure. The fuelsystem has now installed BOSCH EV6 injectors, that flows 42 LBS/HR (436cc/min) with E85 fuel. Original fuelinjectors flow 19 LBS/HR (191cc/min) for petrol. Fuel pressure set to original 3,5 bar (51 psi). It has a old engine optimization for Shell V-Power petrol. The motor control will be re-optimized for the E85 fuel.

Slightly modified original exhaust manifolds is mounted. No other exhaust system is fitted in place, in this video.

This video is taken in spring 2011, before the rebuilding of the whole exhaust system.

Probably the only BMW V8 engine which is completely converted to run on ethanol. The car is a BMW 540i Touring from 1995.

Pictures from the engine rebuilding (Sweden): http://tinyurl.com/V8rebuild
General info about the car (Sweden): http://www.garaget.org/Roughrider

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[GalacticoAR]

that's very impressive, congrats

[RoughriderV8]

@GalacticoAR Thanks. It was Not an easy or uncomplicated rebuilding...but yes I'm proud of my work :)

[hybridfreak]

This is awesome! How is the mileage?

[andersondexter]

The holy shit version of my car - thats awesome!