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Va Cp3 Level 2 Is Here

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Dyno Results STOCK 600 Cummins

Anybody in MN have some time?

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Originally posted by EEngel

Vaughn MacKenzie,



Keeping it on level one for now. I will have something by the end of the week.



Did notice the temp gauge go up about 25 degrees after a good burst upto 100.



How many levels does it have? Have you had it on other levels besides 1? It would be great to get a box that could be used to a large extent without rebuilding the trucks,... is this the one?
 
Levels

OT-OF-HERE,



The box has 3 levels, 0-50-100%. I have tried the 100% for a brief bit, but without gauges I don't trust myself.
 
Mileage

barbwire,



The box sells for $599. I will let you know on the mileage. I fill up on Tuesdays and Saturdays.



I will only be driving on the 50% mode untill I get the gauges.
 
So is this a duration ONLY box?? what is stage 1,just pressure? Do they stack?



I am not sure I want any pressure increase yet, so what does the duration give you, about what kind of numbers? Is it a lot safer than pressure ?
 
Duration

Wolf,



The box is duration only on level 1 and 2. The "duration" method is a lot easier on the system than rail pressure. Take a look at DLeno's fueling box chart, it gives a great description of all types of boxes.



As for the #'s. I believe it is 130hp on the 305 motor and 108 on the 600. Don't remember the torque.



DLeno, please chime in with the numbers!
 
I've actually pulled the numbers on the chart because the dyno run was hard to interpret. the box looks like it will be powerful than anything else except the TST, but I've decided not to publish numbers until I understand the dyno runs better.



TheWolf -- There are two pressure box compaines that have gained my respect. These guys have simply not played the cat-and-mouse game that all all other mfgs have. Banks has declared that 24,500 is where they draw the line for safety, and then they offer the speedloader that goes up to 27,000.



VA draws the line even more concervatively, stating to me that their pressure box only goes to the 23,600 region. This is evidenced by the fact tha the VA pressure box only makes about 30 HP over stock peak, but produces very respectable torque gains in the drivability region.



What you have with the VA duration box is more fuel with zero pressure increase -- the fuel pressure curve is left totally stock. In this regard, the safety is that you don't have to worry about the high presure rail itself. ever.



I actually have a good deal of respect for the VA pressure approach. It would be fascinating to stack the VA pressure box with the VA duration box, not just for the extra power, but to see what the performance and drivability would be at some combination less than box boxes turned all the way up. I happen to be a fan of duration, very small amounts of pressure, and of course timing. now if the new VA box just did timing...
 
Must have been one of the last available! I talked to Danny today nad he has my name on the list for the next batch in. Now for the painfull waiting game! At leat I ahev the Edge EZ for now.
 




VA draws the line even more concervatively, stating to me that their pressure box only goes to the 23,600 region. This is evidenced by the fact tha the VA pressure box only makes about 30 HP over stock peak, but produces very respectable torque gains in the drivability region.






The Service manual says the injection pump produces between 300-1600 bar. 1600 bar is 23,200 psi. The VA box barely goes over stock max pressure if the 23,600 number is correct.
 
yup. Its pretty telling to notice the various pressure boxes out there. You can tell who is raising pressure by how much gain over peak HP they provide. THe more aggressive dyno-day pressure boxes will post gains in the 70HP region (over stock peak) and will require pressures in the 27,000 region.



Other, milder ("towing") boxes taper off the HP gains at the high end to protect against high EGTs and high fuel pressure. The VA pressure box is the mildest of them all, making virtually all of its power below 2900, and precious little gain over stock peak HP.
 
Re: Cost & mileage

Originally posted by barbwire

Can you let us know what amount of coin it takes to purchase said box? and please keep us posted on mileage( hand calculated),OK. If it gives an all around improvement, I want to get on for my 04. Thanks for the great info so far. :)



barbwire,



Here is what I have learned so far:



Well, another tank went through the new truck and it was the first complete tank with the new stage II VA box.



First off my basis for the runs,



5 trips to work and home. The highway is 5 miles from my house, and then it's 48 miles on a 70 mph highway, and 1/2 mile to work off the highway.



I have went through 6 tanks prior to this one and every tank except the first was within 0. 2 mpg of each other.



I keep the truck at 77mph the whole way in (provided there is not a dumb-a** in front of me).



The new box gave me just a bit over 1 mpg gain. I will admit there were a few pumps on the trottle to play, and a little hot rodding.



Also, this was with the box on 50% the entire time.
 
Got the new VA level 2 box installed today!! Very happy with the power and the in cab adjustment, having always used an Edge EZ I never had that. I also left the EZ installed and turned it down to Level 1. This seems like a great combo, the 50% setting on the VA pulls great as soon as my foot is off the clutch and pulls right to red-line. Boost max was around 32-33, egt's hit 1200*, smile was ear to ear. On the 100% setting there are a few nice clouds of smoke as I shift that turn into a nice stream once I hit third. Max boost was 36-38, egt's hit 1500* one time on a top gear passing manuever, fuel pressure pulled down to 2 psi at the pump inlet but hel 8 at cruising. I still have the Edge boost elbow on but might be swapping that out. Now to just get it to breath a little better so I can use the 100% setting more and maybe up the Edge to Level 2... ... .
 
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