Running my own engineering company is fun having to play a lot with medium size diesel engines.
I just completed an engine test system that fits in a suitcase for a company that takes damaged semi truck apart. We are now able to run almost every DAF Scania and Volvo engines and what best of all I have a load of part to my disposal to build new things with.
I’m planning to use the DAF UPEC injection pump for 6 line truck and tractor pulling engines.
Most of the teams still run Bosch P pumps and they have limitations if it comes to injection pressure and timing.
The next disadvantage of an mechanical fuel pump is that they need about 8% droop to prevent and RPM overshoot and in the bobby sport class and semi truck pulling you will be decalcified if you go over the max RPM limit.

With the UPAC pump unit I’m able to inject with more fuel pressure and I’m able to advance or retard the start of injection. Also when needed I can give pilot and post injections.
The best thing will be the RPM governing, depending on the engine and drive train I think I need less than 4% droop to prevent an overshoot and I’m able to cut fuel independent on every cylinder.
The camshaft in this UPEC pump unit is as thick as a camshaft of most small diesel engines so it can handle a lot of stress.
An other engineering company is now looking into changing the cam slope so we can get the injection characteristic we want.




For truckpulling we are working on a V12 two stroke engine from GM or Detroit.
As we can only use diesel fuel and one injection point we have to come up witch solution to inject more fuel.
They already use the biggest unit injectors possible and we are planning to inject twice the amount of fuel as before so we are looking in to two options.
A company is testing a common rail fuel injection system for us but I think maintaining the fuel pressure without any spikes will be hard and getting it all working in time will be a challenge.
The next option will be to use two UPEC pumpunits but then the question will be, will the truck pulling organization see this as two pumps as we can use only one pump so we have to do some more homework to find out.

Paris Dakar Rally.

As every year a lot of Dutch teams will enter the Paris Dakar rally this year. Some weeks ago one of our team members been to Morocco to test the new build DAf trucks with the 13 liter DAF Paccar engine and yes the power and torque is very good making 3900Nm from almost idle with is great to pull you self out of the sand dunes.
This year we also have the Ginaf trucks from team Van Ginkel with the 18 liter CAT engine competing.

 

Cool job for sure.



How do you get around the emissions laws over there?

 

Thanks For sharing! the ECU Sytem your using is incredible!

 

those "unit pumps" on top of that injection pump look just like what mack uses.

 

These pump units are used on many diesel engines. Some are mounted in the engine block and some are housed in a separate housing like the UPEC. Also some of the pump injectors a very close to the pump units as the only difference is that the injector and pump unit is one.

 

I dusted off the Renault Clio diesel 15 DCI engine and connected is to the Diesel engine test unit or diesel ECU system.
I made two small movies. The first movie is about the sound difference while changing injection modes between 1 main injection and adding a pilot injection. I set the ECU to change motes. I also gave the engine a bit more fuel than needed and set the RPM governor gain very aggressive maximum RPM response.
The second one is how the engine normally runs and shows from left to right fuel pressure, RPM, torque demand, total injection duration and inlet manifold pressure