The new sound of the new exhaust system demonstrated on the party we have for team members and sponsors. Next step will be to test it all and make improvement from there. We also start working on a new engine soon that will incorporate not only new type of camshaft but we will try to incorporate all new findings in the new engine as well so chance is that we going to swap engines more often and keep upgrading them. Het nieuwe geluid van de Manne van Janne 2. - YouTube Het nieuwe geluid van de Manne van Janne 2. - YouTube

The truck puller is almost ready for the game. The only thing left are the new air intakes to the turbochargers where we remove the air filters and beef up the intake diameter. Will post some pictures when it’s ready.

Parallel to the truck development we are already building the engine for next year.
We are in the process of timing the engine with the new camshafts and it needs a closer look from an expert to verify the correct timing. With this engine and cam followers it’s not that easy.

The main thing why we work one year ahead is that we already done a lot of modifications to the truck that need to be tested and between the championship events there is not a lot of time for testing.

Small update. We are well on our way to the first truck-pulling event for the championship.

The engine runs fine with the new hi pressure injectors and we have an EGT that within 5 degrees on all cylinders.

We still have one problem and that’s turbine speed on de co driver side with catastrophic results as you can see in the picture. We suspect the hose in front of the compressor to go flat restricting the air intake under full load but as we have no feedback on turbine speed we have noting to compare to as we run two turbochargers.

What I like to know did someone fit a speed sensor on a HOLSET HX60?

Last week we had the second event for the championship and became second place with an engine that did not perform for the full 100%.
The first event did not go as planed as we blow up a turbocharger in the first run and this was already the 4 time we had turbo damage this year during test events.

This is how it looks if you blow up a turbocharger.
There is a big difference between conventional fuel injection that dos not account boost pressure so it always give max fuel and electronic fuel injection that calculates fuel over boost pressure.
The main rezone we get massive turbo damage is that the engine dos not suffocate in it’s fuel so even when a turbo compressor blows it self up reducing boost pressure we still get combustion overspeeding the turbine as it has no power takeoff from the compressor.
In this video the remains of the turbine wheel came out of the exhaust even ripping out a 2x 12mm cross that’s there to prevent that the turbine wheel coming out of the turbine housing.



We made a lot of progress on power output of the engine using the hi pressure injectors but we had to jump back to the injector and exhaust configuration of end last year to prevent turbocharger damage.
The next logical step will be to go for one big turbocharger like a HX82 or HX83 so we can build an exhaust and turbocharger system that can handle the engine power a lot better.
The bad thing is this will need a big rebuild of the exhaust and intercooler system and we don’t have the time to get this done during the main season.

Even more problems.
For some time we had a unbalance in o2 between the left and right cylinder bank of the V8.
We know this as we have o2 sensors in the exhaust.
On the last two events we had difficulty to get boost pressure @ the start of the pull and during the first 50 or more meters of the run we had misfires.
With the electronic activated PDE injectors we do not have return fuel from the injector so if there is air in the injector the only way out is towards the injector nozzle.
The result of air in the fuel injector gives a delayed fuel injection or no fuel injection at all.
We think one of the fuel lifting pumps had a leak so we replaced it.


What saved the day.
On the last event for the championship we had an engine that did not perform that well but still me managed the get the truck past the full pull line with one gear lower as we use to.
The modifications we done last winter gave us a lot more traction on the track so we still mange to get second place.

Second time in a row we made second place still moving up strong in the championship after a disappointing first event.

We found the problem of having air in the fuelrail. One of the fuel feed pumps had a bad O ring and we replace the pump.
Finally we had the full power again so we could drop the clutch like silly again.





As we where on our home event the party was even bigger this time as you can see in these pictures.
Load of Beer on the V8 Beer plate al do it can handle loads of other consumptions as well.





Next event we go up to Denmark where a lot of team will give a demo event. For more info visit. Forside - www.truckpulling.dk