new fueling box summary includes new VA box

[DLeno]

I have updated the fueling box summary to include the new duration VA box. it is shipping now.

 

[Bob Wagner]

nice job

 

[Greg Boardman-RIP]

Doug,

Nice summary. Looks like you put in alot of time on this. Maybe it will be published in the next TDR mag.



With the information you posted the V/Aa box, It stated 115 HP gain. On their website I could not find anything other than a 65 HP gain. I used to have a Van Aaken on my 01 ond loved it. Would like one on the 03. How do they work on a SO equiped truck.

Thanks for all you research,

Greg

 

[EEngel]

Nice update.

DLeno,



Nice update. Rumor had it that they tested the new VA box at Jennety (sp?). It worked on the 600, they just wanted to refine it a bit.



Have you hear anything about a release on it?

 

[DLeno]

no clue on the SO. The 115 HP is my interpretation of the dyno graph that I saw. my rule is explained in the fueling box summary but basically:



1. even though most box mfg claim "best gain" HP, I throw that number out and use "peak HP gain". otherwise known as "peak to peak" gain. The astonishing thing about the VA is that no other box on the earth today (except for TST) can make that much gain over peak stock.



2. the pulling power (torque) in the drivabiilty region is obtained by taking a +/- 8% (approximately) region and noting (a) the average gain over stock torque, and (b) the rpm range overwhich this occurs.



BTW, the numbers were generated from studying the dyno graph, without visibility into the actual data points. so I'll probably refine those numbers later.



I'll have to visit with Ted about his.



the box has been released. ; Precision Diesel in NY has sold 100 already.

 

[pecandude1]

man i just called to order one and there all out till next week

 

[CIverson]

Does anyone have any more info on this box? I'm curious to know the specifics.

 

[BCarmicle]

DLeno,

Do you think the VA box would be better than the Edge EZ to stack with the TST box to make power and maintain drivability?



Brandon

 

[DLeno]

depends on your goals. if you want absolutely the most power available and at the lowest rpm with current available electronics, stack a ramifier with the TST . but they'll have to re-program it because the ramifier is just too aggressive on the low end to be drivable with the TST .



stacking the NEW DURATION VA Box with the TST? LOL I have no idea what that would do. my first reaction is that this would even be worse than the ramifier. it would be the VA box dialing up a duration change at the ECM level, and then the TST adjusting timing and ADDITIONAL DURATION at the injector level above and beyond the VA! sounds like a disaster to me, drivability wise. fascinating and good for the interest in science, but not good drivability. I look at the VA torque curves and think "how could one improve on that!". maybe an injector would do it



If "I" were to choose a pressure box to stack with the TST I would include the VA pressure box on my list. this is a very mild pressure box that is weak on the high end and moderate in the low end. That said, we know that the EZ is hot at the top end and weak on the low end, and for that reason may be better suited for the TST.



Since wer're talking about stacking, why not stack both VA boxes together? I don't even know if the mechanical connections allow it, but its interesting to consider a mild pressure box stacked with a moderate duration box.



but to answer your question, as I look at the way TST brings in power (like gangbusters at the low end) and the way the EZ brings in power (slow at the low end), you might be better off with the EZ than with the VA pressure box. simply because the VA pressure box comes in strong at the low end and if you stack that with the TST you might end up with kind of a rough drive. Thats just a guess though -- someone needs to do an experiment and tell us how the VA pressure box behaves with the TST.



another strike against the VA pressure box for this purpose (stacking with TST) is that it (the VA) has the last word regarding boost fooling. The TST boost fools right at the MAP sensor, but the VA boost fools the TST boost fooling at the ECM input (!) I don't know if they would be compatible or not, but my guess is that since the TST boost fooling is rather "dumb" (that is, nothing fancy, it just caps the signal to prevent an overboost code), that it would work.





mosty importantly, remember what you paid for these comments. I haven't tried any of this

 

[JDerbedrossian]

the VOLUMIZER seems to be neglected by everyone. i dont know why. no codes alot of power what more do you want. GREG you saw for yourself what it can do with stock exhaust and afe.

 

[Johnstra]

DLeno - Nice writeup... very helpful. Maybe you can add a section on fuel efficiency for the various boxes? I know I'm probably in the minority being interested in a box in order to improve MPG, but surely there must be a least a couple of other folks interested in this.

 

[Greg Boardman-RIP]

Jake,

I see nothing... . Know nothing..... But remember everything... !

Originally posted by JDerbedrossian

the VOLUMIZER seems to be neglected by everyone. i dont know why. no codes alot of power what more do you want. GREG you saw for yourself what it can do with stock exhaust and afe.

 

[DLeno]

I dont' think you're in a minority on the fuel economy issue -- especially while towing. I'm interested in it too.





the volumizer is an interesting box, thats true. its more powerful than any of the pressure boxes in the rpm region most used for towing (2000-2600). 38% harder pull than stock is impressive. details in the fueling_box_summary

 

[JDerbedrossian]

greg thats what i like to hear!!!!

 

[Johnstra]

It's a little harder to gather fuel economy data, unfortunately, than HP and TQ.



I think I'll start another thread on this topic and query members that have boxes for their observations. I hope enthusiastic members keep their reports grounded firmly in reality

 

[COSEng]

Will the VA duration box cause higher EGT's without

advancing timing??

 

[DLeno]

well, yes I expect EGTs to be higher than the TST box at comparable power levels. duration isn't a whole lot better (in my opinion) than pressure as regards EGTS. but we really don't know because its never been tested!

 

[BCarmicle]

So does the Ramifier make the most power below 2000 rpms?

 

[EEngel]

Getting better every day.

I just spoke to somebody who is programming the VA boxes with VA. The 125HP gain is just the start. The box is completely reprogramable. There will be a much larger version available to those who have the right mods on their truck.



EGT's are a concern with the "pumped" up box. Some testing will be going on very shortly, to see just what they can provide without burning the house down.



As for the VA box you can get right now. Well, they have 5 programs in the box for the Duramax, the top providing 250HP. They just need some more time with the 600. Also, they plan on adding a timing control (already present in the Duramax model).



Since the box is "updatable", there will me minimum cost as the new programs arrive.



I am going to have the box on my truck at the Minnesota TDR ralley on May 8th. By then I will have a good feel for the box and we can Dyno it (if the Dyno is available for our use).

 

[Gypsyman]

"the box has been released. ; Precision Diesel in NY has sold 100 already"



Doug,



Any readily available information for the public yet?