wadem

hi there, sorry for what may be a old subject, but i have done a search and cant find any info
on the Van Aakens 3.2 box..either iam blind or just doesnt exist. any thread or link help here would be great . wanna get one but need help deciding between 3.1 or 3.2 ADVICE PLEASE

AK RAM

Try Doug's fueling box matrix…third one down. He has a nice report on it and a few dyno runs. http://www.nwbombers.com/membersites/doug/matrix.htm

Mark Craig

wadem,

We have been selling them for months with great customer feedback and performance results etc. The 3.1 is a pressure box that has safety features that doesn't keep the pressure up all the time. The 3.2 is a timing and duration box with NO pressure changes.

Mark @ DPPI

BPD239

I was also considering this box. I'd like to hear from anyone who has this box. I like the idea of not increasing the rail pressure, but my truck is already EGT challenged, and it is stock with the muffler removed. I’d be interested in hearing how it tows and is there really boost fooling going on with the box installed but in the off position.

bigblock2stroke

Any FE improvements with just the timing box? I would interested in one of those.

502502

I thought the VA duration box did not have timing? (thats why so hot-egt)

Do they now?

Mark Craig

Tomeygun,

You're exactly correct, I spend tooooo much time on the stuff to forget but I did, sorry. It's pulse width only, with 3 dimensional digital mapping across the entire RPM band.

Mark @ DPPI

Bluedeviltorque

Hello all,

I've been looking at the VA boxes since before I bought my 3rd gen truck. They seem to me to be of pretty good quality, and as scary as this might sound I tend to trust the europeans quite a bit with the common rail stuff because they've been playing with if over there for quite a while. And with the tighter regulations and higher petrol prices they pay, the prouducts sold there need to be fairly decent.

So after my rambling here are my thoughts/questions. I really like the idea of the 3.2 because it is a duration box and doesn't mess with rail presssure which leads me to the 3.1. The 3.1 is a nice box and I have heard good things about it. But with the recent development of leaking CP3 pumps I'm leary of putting it on an engine that I trust as a daily driver. But on the bad side of the 3.2, there is no boost fooler or timing to attempt to tame EGT's. So this leaves me in a tight spot(I think).

Does any other manufacturer(s) make a duration box with timing and a boost fooler? Or am I stuck having to use a pressure box or even stack boxes and subsequently haveing to bomb the tranny? I was hoping to leave the tranny stock for the time being and just use a duration box... but my thoughts are going out the window quickly.

Sorry for my usual long overly wordy post. As always all input and suggestions are appreciated.

Mike

AK RAM

Well, the VA C3.2 does do boost fooling, even when it is turned off as I have found out. It is just a hot running box and hard to tow with due to not having any timing advance. If you read Doug's report on his fueling box matrix about the C3.2, you will see his comments on how hot EGTs got even on a short run at WOT. I have one that I play with sometimes and I really like it, it works great, real smooth, lots of power, just too hot to use without airflow improvements and a turbo in my opinion. Of course, if you keep it turned down to its 50% level, it is not too bad, but what fun is that. As far as other duration boxes that do timing as well (that are available now), you have the TST and the BullyDog Downloader on the Tow setting. The other settings on the BullyDog unit add pressure as well if that is something you're trying to stay away from.

Even though I haven't tried one yet, I really like the principles behind the VA C3.1 pressure box, especially if you like to tow. In comparison, a pressure box like the EZ raises fuel pressure to a certain point across the board, say 25,000 psi all the time after a certain RPM is reached (just speculating with that psi number). This will cause the fuel system to work much harder than stock which is what most worry about (no documented evidence that it hurts anything in the long run). The VA C3.1 does not raise pressure much more than stock. It is the way it does it that makes it so appealing. On a stock engine at low RPMs, say below 2,000, the fuel rail pressure will only be around 12,000psi or so. It doesn't get up to its stock max of 23,000psi and some change until RPMs reach 2,500+. What the VA C3.1 does is raises the rail pressure close to stock max numbers right off of idle. The result is a much improved low end torque curve, right where most people drive and tow. It tapers off as the RPMs come up so you never really raise the max pressure above stock levels, so the pump isn't working any harder than it does with no box at all. Did that make sense? I hope I got that right. The result is awesome low end torque that you would really enjoy with stock like acceleration above 2,500RPMs as it doesn't raise overall pressures much at all.

Brian

metal_miner

Mike-

I have to agree with AK Ram. I have the VA C3.1 and stacked it with the Power Pup. The VA added a strong low end complement to the pup. At idle speed or light throttle around town you don't even notice the VA - it's not touchy or jerky at all, but when you step on it it pulls strong (feeling of getting pushed back into the seat) from idle to about low-2k rpm range.

This morning I removed the pup, but left the VA in (because the brown truck is showing up with my new TST!). Without the pup, I still get the same, strong low end feel, but lost the upper end punch that existed at interstate speeds with the stack.

The VA3.1 is also relatively mild compared to the other pressure boxes out there and probably doesn't win the HP wars compared to the $$ so you would have to factor this into your decision. However, how and when the power was delivered mattered more to me than the overall HP gain. VA having common rail experience in Europe before the CTD was also a strong deciding factor. My only regret was not getting the VAC3.1 earlier.

Rod meyer

Now that were talking about the va, I had one on my 02 and loved it.
Is van aaken gonna come out with a box with timing any time soon?
05 arriving soon and a new va duration with timing would be awesome.