Ok guys I have to chime in here, First, all testing was done on a brand new Cummins 600 that a customer was gracious enough to loan us for the day.
He objected to any drilling of the exhaust manifold so we could not check EGT
Some things are beyond our control.
Although the engineer from Van Aaken Assured me that there are no issues with EGT since like every other Turbo Diesel the turbo charger responds and adds more air keeping EGT within factory specs.

There is Boost fooling in this box.

These trucks do not have electronic wastegates nor do they have wastegate position sensors.

A wastegate is a simple device, a Pod with a diaphram and spring inside that connects to the wastegate valve on the exhaust turbine housing via a threaded rod in most cases.
This pod is preloaded against the spring holding the wastegate shut at all times except where enough boost pressure can enter the pod and overcome the spring preload opening the wastegate.
Shorten the rod increases preload raising Peak boost.
Lengthening the rod decreases preload lowering peak boost.

Say the stock wastegate is preloaded to open at 24 psi boost with stock fueling.
If you add fuel it will still make more boost even though you did not change the opening point.
Even when the wastegate is open you can still drive the turbo faster by adding more fuel the turbo in turn adds the necessary air to keep things cool to a point.

This is why all boxes must have boost volatage clip, not exceed factory spec.

These units will not set any codes, nor will a dealer be able to tell you had one on the truck when you take it off.

YOU ARE YOUR OWN WARRANTEE STATION, ADD PRODUCTS AT YOUR OWN RISK.

This is a quote from the TDR.

Cost for the Van Aaken C3 can be had via email at tedj@jannettyracing.com

Don't want to break any rules

 

Thanks for clearing that up. I was under the impression they had an electronic WG.

Andy

 

ok now it makes sense Ted. thanks for the updated information. so the VA does or does not connect to or use other information besides MAP and fuel pressure?

too bad no 305HP tests yet. I'd offer my truck but that would be a bit of a drive from the left coast...

 

The VA C3 uses the map signal or boost reference signal, rpm and load to calculate added fuel delivery.
Plus as said earlier it clips the map voltage not to exceed factory spec.
It has been tested on the 305 models in fact we installed a few here both autos and manuals, plus what we have sold via mail and online orders.
They work perfectly.

 

OOPS answered from wrong computer.

 

so it uses "load" information -- which is different than MAP? do you know what "load" means, and where the information comes from? or by "load" do you mean MAP information?

It must get RPM information from the crank? none of the other pressure boxes utilize RPM -- this might be useful to bring in fuel whenever you want.

 

How and where can I get a look at the dyno graphs. I'm very interested in buying one of these boxes but not until I can see the runs. Another interesting side note is that Ted told me via e-mail that these boxes do not appear to alter the stock idle quality as do some of the others. Shannon, Ted, any chance of seeing those dyno graphs for the '03?

 

Gypsyman, I imagine there are Dyno Graphs on the Van Aaken Web site for the 03 Dodge, they should be more impressive than the 04 600 since it starts higher in fuel delivery, we didn't see 200 lb. torque as advertised for the 03 Dodge.
I haven't had a chance to test one on my dyno yet but everyone that has purchased one has reported that they are very happy with the results of the simple plug and play box from Van Aaken.

Doug, Load information is a combination of TPS, MAP, and RPM.

Most pressure boxes only use a 2 demensional map to plot fuel delivery.
Van Aaken Uses a 3 Demensional map.

 

hmm. not sure I understand what the 2nd dimmension is for most pressure boxes that just hook up to the pressure port and the MAP sensor. Do they not dial in fuel pressure error as a function of the single dimmension, MAP?

And really, the VA cannot completlely own fuel delivery as a function of RPM, TPS, and boost. it has to own fuel pressure error as a function of those things, and let the ECM react accordingly. Certainly a more precise way to control the low end.

BTW, The dyno runs for the 04.5 600/325 showed 30 HP peak-to-peak HP gain (that is 30 RWHP gain at or near 2900) , and about 135 ft. lbs gain between 1700 and 2500. Thats about a 30% harder pull than stock. definately favors the low end.

 

Ted,

Something that has my curiosity up is the fact that the literature on this box states that...

" The built in boost fooler function allows the user to mechanically raise the boost pressure without the worry of engine management faults."

Taken from their literature. Does that mean that we have to make mechanical changes to the waste gate to elevate boost levels?

 

couple of my observations: first, unless recently updated, I believe the VA language on the web site is left over from the 2nd gen boxes. It talks about inserting the box BETWEEN the ECU and the fuel pump (which is how all the VP44 boxes work. not the CP3 boxes).

So some of the descriptions there may not apply to the 03-04.

Second: boost fooling allows MAP to exceed factory maximums so that the ECM does not de-fuel and/or set a code. This function itself is independant of wastegate control, but having such a feature allows the use of boost elbows and such which mechanically raise the wastegate level.

depending on the truck and the level of fueling, the stock turbo may or may not acheive MAP levels sufficient to cause the ECM to defuel. When MAP acheives a certain level, the ECM will try to defuel, and if this is not succesful in lowing MAP, then it sets an overboost code. boost fooling prevents this.

so I think all this says is that no, VA does not supply a boost elbow but you can put one on if you like.

 

Doug,

Are the boost elbows available as a "stand alone" item? Also, why do you think that they would not include one as Edge does?

 

I went back and looked at the 2003 C3 literature and it states the same thing. Also state the boxes "Boost fooler function allows USER to raise boost without warning lights". What am I missing?

 

I just think that some boxes provide it and some don't. The VA sports the easiest install so maybe thats why.

So far as I can tell, the reasons vary (cost maybe?). The VA is not the strongest of the pressure boxes out there so maybe a boost elbow isn't as effective or necessary -- I really don't know.

I don't really think you're missing anything --- sounds like they don't supply anything but make it possible for you to do it. it isn't necessary for the box to function and I don't see any compelling evidence suggesting that the box HAS to have one.

Suppliers. well, the only vendor I've delt with for a boost elbow is Piers -- I got one for my 2nd gens and probably they have one for the 3rd gens as well. Check with TST as well. they might sell one separately. Both are adjustable. one may be mfg by the other

 

Being a hot rodder I'm new to diesel bombing. Feel free to school me as I need all the info I can get to come up to speed on diesel performance enhancement. If there is HP to be had with additional boost why wouldn't they include a simple brass fitting, or is boost a minimal increase for the extra stress on the engine?