Still going stronger.

A small update on the two last events for the championship.

On august the 5 we run for the points in a place called Werkhoven ending up 3e place with the Scania 164.
This time we had the power breaker as pulling sled and that not one of the nicest on a clay track as you can see in this movie.


Last Saturday we run in a place called Eerde on a track that has some sort of clay still making it possible to have a lot of wheel spin and a bit harder to get traction.

The last qualification we had a strange moment were around the 70 meter mark it looked like the engine was staling and a split second later start pulling like crazy. Some people where thinking we were shifting gear but it tuned out the RPM governor setting was too aggressive cutting a lot of fuel just on the spot the sled was increasing drag so we tweaked the engine management system a bit for the final run.
It turned out we had a very good set-up for the super final and became 2e place.

Super final run.



This is how we get beer.


This is how we party


As some of you know the Scania 164 has a engine with electronic activated pumpinjectors.
In contrast too conventional fuel injection pumps there is nothing on the marked that gives the possibility to upgrade these injectors so for some time we are working to produce the parts in house and it looks very promising so far.
The big difference to conventional injection pumps like a BOSCH P type line pump is that the pumpinjectors within some range regulate the fuel injection pressure making it possible to run very hi injection pressure without damage but it will effect the fuel quantity so there a fine balance to injection pressure and fuel delivery.
During the last test on the test equipment it seems that we mange to get more fuel out of the injector than expected while increasing the fuel injection pressure.

The main rezone that we are aiming for a very hi quality of fuel injection is that we study the Scania engine and the combustion chamber and its nowhere close to ideal for a low pressure hi volume fuel injection as the fuel will hit every cold part in the combustion chamber as the fuel droplets will evaporate to slow giving a slow rate of fuel burn.
We need the fuel pressure to break down the fuel droplets in to smaller fragments so it will evaporate a lot faster giving a faster fuel burn and we also think it will increase the fuel temperature a lot when it exits the nozzle.
So far we compared the fuel consumption to a engine that seems to perform about the same running a conventional fuel system and we calculated that we run 40 to 50% more fuel efficient.
OK this is not about the lowest fuel consumption but trying to get better use of the oxygen/fuel mix getting even more power out of the engine.

@ this moment we are running a low pressure injection system where we inject about 10% more fuel in a shorter crank angle than before but due to the slow combustion the power output is only a fraction more and the sacks look like an afterburner.
After the championship event we will start testing with the new injectors. For now we want to take no risk.

 

thats cool as hell! It would be fun to go to one of those events sometime

 

Scott why not jump in a airplane and come over for the last event. It’s the biggest in Europe if it comes to truckpulling.

Ye we sometimes wonder what’s the sport watching or doing it on the track or is it just to worm up for the party tent by watching the trucks. It all seems fun!

Last night we installed a second fuel pump and hoping we solved the fuel starvation problem, it’s only pulling 900Watt of electrical power.

 

Small report on the last truck pulling event in a small village called Vragender.
Again we ended on the podium with a 3e place and it looks we closing on the bigger V10 engines that still dominate this class. Looks like we gained some top end power with the last modification.

Super final run.

Last we also tested the new hi pressure smart injector, came out we gained 700Nm with the same injection duration without smoke.

Load test of the injector.

 

What a way to end the last Truck Pulling event.

This time we had Almkerk on the agenda and it’s the biggest truckpulling event in Europe.

We had a very good clay track with was a bit soft providing maximum grip making it even more fun to see all the truck wheeling towards the 100 meter line.

In the day before this event we discover a problem with the fuel pressure regulator dropping the fuel pressure by 30 PSI short.
As we know from testing on the bench this will reduce injected fuel on top end power bust as we never run the at the hi fuel pressure we did not know what to expect on engine power.

As usual qualification was like playtime for big boys with power full toys picking some silly gear trying to race to the 100 meter line. Turned out that the sled pulled a bit heavier as expected and we came 60 cm short. The Black Widow with the 16 litter MACK motor did not get to the FP line as well so in order to get more competitors across the FP line the set the sled a bit easer to pull.

In the super final thing became more serious as this will be the first time to notice if we gained some Hp.
Martein the truck driver use the max launch boost building up to 15 PSI boost just by pressing the decelerator to the max a bit longer without dropping the clutch so the engine management systems know the driver want boost retarding the injection for turbo spool-up.

Super final run.

Same run from filmed from the back.

The good thing about this pulling sled is that it also record time over the run that gives you the indication on how your performing on the next run compared to the competition.
So far we always felt short on power to some of the V10 18 litter MAN and Mercedes truck pullers.

For the Mega final we were the first to hook on to the sled. We also being told that for the first time in history we had the sled running with all he got so it will be a very heavy pull.

Mega final run.

Same run from filmed from the back.

Turned out that we pulled 79,77 meter ending up only 5,52 meter behind the number one so for the second time this year we became second place.

Also in the end ranking for the championship we were 1 point sort to become 3e place and only 5 points to second place.

The next race will be my race to get even more Hp out of the almost standard engine.
We still running low injector pressure and this will change as we tested the new hi pressure injector for a week on a commercial truck ending up making 800Nm more torque and in normal operation almost the same fuel consumption so it looks promising for now.

My aim is to burn all the fuel by increasing the fuel injection pressure and optimising the nozzle trying to prevent that injected fuel will hit cold parts like the piston liner making it harder to burn this fuel.
Some team use fuel pumps with 16mm or even bigger plungers ending up injecting loads of fuel in there engines.
For now our numbers show that we make the same or even more Hp with 40% to 50% less fuel compared to conventional mechanical fuel injection systems even do we still run low injection pressure burning of a load of fuel in the exhaust due to a combustion that’s to slow.
My goal is to get 250Hp out of a 0,7 cc fuel injection. We will see how this goes.

 

 

We just ended 2011 championship and we working hard to get it all ready for next year.
We took the side panels of the truck to make it easier to work on.
We are always looking for more traction and one of the best ways to get it on a sand track is to move thing like the fuel tank batteries and air tanks as far to the rear as we can.
On clay and other tracks with more traction we can move a big weight hydraulically to balance the truck.



After tree years and load of holes and even part falling off the exhaust manifold we decide to build them new for a better material. Also the firing order of the V8 in combination with 2 turbo makes it a challenge, as there is not a lot of space.
As for the HOLSET turbo we are now receiving full cooperation from HOLSET with makes it a lot easier for us to make a proper turbo set-up in the future.

 

We just had an indoor event in a place called Etten-Leur where we run a demo indoor with the Scania 164 and I must say a bit insane running this truck wit the Hp and speed on a 60 meter track.

As we use demo’s to test stuff we fitted new hi pressure injectors and it worked.

We were first on the track and did have a go at it but before the end of the run the sled gave a emergency stop and also our driver Martein decided this is going to fast.


For the second run we decide to run a lower gear to get some speed out and also the sled was a lot harder to pull. Well I did not look like it was a hard job to pull only a nice wheely.


Last run we wanted to test the truck to the limit so all knifes under the sled set-up to the max to get more breaking power but still it looked like an easy job. So it will be next year’s demo’s to find out what we have gained with the modification to the fuel system. next job is to build the new exhaust manifold and test loads of other things for next year set-up.


We also have the Manne van Janne 2.5 that perform in the Jeep class. Well most of the time we use the back. It’s also a driving coolbox for all kind of drinks many beer.

 

The next upgrade we are working on are the exhaust manifolds.

 

Some pictures of the new exhaust manifold and stacks.