Software developing
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Software developing

Last blog post was about improved fuel system, this time I will take a minute to talk about software modifications. Our OM648 320cdi engine is controlled by Bosch EDC16 engine control unit (ECU). Pretty much everything is controlled electronically on this system. There too many features to list that ECU controls and observes, but here…

OM648 First testing at kemora (video)
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OM648 First testing at kemora (video)

You’ve probably heard all about the testing day but we still like to show more. Enjoy the video, english subtitles on youtube. Read more about the 2015 setup and testing here

Higher pressure and more fuel volume!
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Higher pressure and more fuel volume!

Original high pressure pump (HPP) will not be able to maintain selected pressure level if we increase the amount of fuel going it to the engine. That is why we needed to find bigger HPP. Mercedes 400cdi has one that fits our 320cdi pretty easily.  It is capable of producing bigger fuel volume at same…

Kemora test-day
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Kemora test-day

We have already driven the car in the bench a couple of times to test the mechanical functions but the engine map is to far of the chart to get it right in the bench. Therefore we decided to go to the local race-track, Kemora, for a couple of setup-laps. The car with the current…

Modifications to the OM648 engine
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Modifications to the OM648 engine

Because this is a new engine for us, we don’t know the weak spots of it yet. Those will come up later fo sure, but we decided to strengthen the block a bit with griddle plate and ARP bolts. Hard bolts from ARP was used to secure connection rods to crank shaft. Hopefully we can…