Old VA versus New VA 235

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We have had questions about the calibration of the new VA versus the old calibration. See the attached graphs at http://www.bd-power.com/ram/hographs.php?tt=ram

We have also posted other CanBus systems results on the graph as well. Exhaust temperatures and boost pressures all remain with in engine managment parameters with these digitally tuned programs.

I should add that the truck is tested with the convertor in lock up, we hold it there for testing which in a stock application (without a TorqLoc) is not possible with the pedal on the floor.

Brian@bd-power

 

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<font color=blue>Nice to see the Edge EZ produces more torque then your "new" VA.

Once again nice graphs, but useless. Why point out the peaks of just the new VA? Why not list the peak stock, peak old VA, peak EZ??<font size=-2>

[This message has been edited by KatDiesel (edited 01-07-2001). ]

 

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Brian, the graphs look good but I noticed you have a part number for a VA thats for the HO Cummins part number 1065902. Is this a different box than the one in the graph charts? The graphs show a 235 plug&play correct? Just curious as to what the HO box will do for the ETH. Regards Pete

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01. 5 Loooaded up!!!!!

 

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The 1065902 is for the H/O and when we install it on the 235 it ends up with less performance and more smoke. Where did you see that number posted? 1065901 is for the 215/235 The Graph shows the 235 Plug n Power or VA as also known.

Kat what's happening? What do think is missing from the Mustang print out's?

Brian@bd-power

 

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Sorry Brian I probably wasn't very clear, Your graph is for the 235hp motor and I was curious as to how the VA #1065902 performed on the ETH cause mine is a ETH. Thanks Pete

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01. 5 Loooaded up!!!!!

 

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Originally posted by BRoth:
Kat what's happening? What do think is missing from the Mustang print out's?

<font color=blue>List the peaks for each device tested so that there can be a true comparsion, not just a guessestimate. Not just the peak on your new VA. And actually on the torque graph you list the peak of the EZ not the new VA. <font size=-2>


[This message has been edited by KatDiesel (edited 01-07-2001). ]

 

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Kat take a look at the specifications which show close detail at a variety of RPM. We can not list each one on the graph or you could not read it.

The H/O results will be posted this week.

Brian@bd-power

 

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Originally posted by BRoth:
Kat take a look at the specifications which show close detail at a variety of RPM. We can not list each one on the graph or you could not read it.

<font color=blue>List them to the side, on the bottom. Just the peak values for each device, not next to each line, just anywhere so we can have all the information.

By the way I replied to your email... ... .

 

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When I click on the "specs" for more detail, I noted the file names say "ho-stock" and "ho-pnp".

So, is the data really for the HO, or for the ETC? Looking forward to getting all the data, thanks for posting.

P. S. - What would it take to get some test-bench data on fuel consumption under load? All the "brake specific fuel consumption" charts from Cummins are based on "full load" testing, and don't tell us what we need to know about effects of VA, EZ, etc on mpg at Hp levels that are equivalent to typical cruising at 65 to 75 mph. Going by "customer reports" leaves something to be desired, because we all know that there is so much tank-to-tank variation due to factors we can't control very well out in the real world.

 

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Sorry for the H/O term used. The testing is with a 235 PnP on a 235 engine.

Fuel consumption figures are difficult to attain. Though the consumer ones vary I would rather leave it to indivuals to try the testing. In theory the timing enhancments should improve the economy.

Brian@bd-power

 

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C'mon guys. If you didn't have a dyno I bet you couldn't tell any difference. I sure couldn't between the VA and the EZ.

 

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That is correct, you cannot feel the difference between the VA/PnP and the EZ. The dyno report itself has a % of error based on the engine tempertature, atmospheric pressure etc. They are both top quality products.

Brian@bd-power

 

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BRoth,
How much of the HP gain is though timing enhancements, and how much of it comes from adding fuel? There is not a large HP gain over stock but it does count for something to do it without increasing boost or EGTs.

Are the timing changes fixed or do they vary depending on RPM, boost, and throttle position? I was interested in the EZ but was scared off by reports of it possibly advancing timing too far under heavy load, and some were having trouble with the EZ on their ETHs.

Thanks for posting and filling us in on the new vanAaken.

Vaughn

 

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Time that fuel is injected has a 10+ hp effect, the timing is dynamic(changing) as the load (throttle positon and engine rpm) is put on the engine. The majority of the power comes from adding fuel.

Va designed a specific box for each engine beacuse one generic box can not be tunned to meet each engines characteristics.

 

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Brian, any word yet on the graphs for the HO Cummins? Thanks Pete

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01. 5 Loooaded up!!!!!

 

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So where are the graphs depicting the HO engine with the new VA?