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Exhaust manifold variations

Exhaust manifold variations. Version 2.

There has been some debate about different exhaust manifolds on CDI engines. Some think that longer manifold with colletor is the only way. On the other hand some say that the right way is to get a manifold that is as short as possible. Long exhaust manifold: Those who shout out for long manifold think…

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Software developing

Test bench

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…

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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…

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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…

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Old dog is learning new tricks for year 2015!

After having major problems on season 2014, we decided to make big changes for upcoming season. Biggest problem was the engine, so that needed the biggest changes. OM606 could not keep up with the competitors, so it had to be replaced for 2015 season. We did consider many options between engine manufacturers and models. MB…

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