[oc24]

I'm confused. It seems upon receipt and installation of a v2, you can be at any boost level. I have been following the threads and people's boosts are all over the place. Some have to go down to the 80%'s to hit 15psi, others have to go up to the mid 90s. So then the question becomes you have to datalog to see where you are, right?

But then I have seen conflicting information, like:

Originally Posted by shiv@vishnu

In an attempt to advance the state of N54 tuning, it’s time for all users to get more familiar with how and why our cars run the way they do. In addition, we feel it’s important to establish a method to quantify tuning effects. This post will explain how to use the data-logging/data-viewing feature in the PROcede to accomplish just this. This post will present information for those who want to dig deeper in the technical side of things.

Please ignore this post if:

You just want to upload the map, run the default User Torque settings and never touch the computer again. It's okay. No one will think any less of you

You don't have a laptop and refuse to ever get one. That's okay. I try to avoid even looking at computers when I'm not at work.

You are going to start threads about how confusing it is to be a PROcede user. Please understand that you don't have to know any of this. It won't improve you relationship with your spouse either.

You think your car is already fast enough and wouldn't care if there little green trolls that powered your engine. Your mom doesn't know anything about engines but you still love here, don't you?

or

Product Overview:
As the pioneer of BMW 335i tuning, its only natural for us to offer the most advanced engine management solution currently available for your car. Comes pre-programmed and ready to install. No laptop required.

The above implies we do not need to datalog and we can just install and be on our merry way. However, my fear is if the standard 90% puts my car over 15psi, then I am in trouble. My concern is if the standard 90% puts my car below 14psi, I am really not getting what I paid for. Thus, datalogging is necessary...right?

[Serjames]

By the nature of the level of tune this device can offer, there is an inherent level of tweaking recommended to get the best out of it...

That just comes with the territory . you could 99% of the time just plug and play, but most of us want to tweak it... those that don't, go for a flash like the Dinan or a more simple electronic box of tricks like the "j B" devices.

It's your call, Tweaking, in my opinion, gives me better value for money and an understanding of how and why my car works the way it does...

I think it's an advantage of the system, others will disagree.

SJ

[jpsimon]

Originally Posted by Serjames

I think it's an advantage of the system

SJ

[jpsimon]

it's really easy to datalog! just do it

Originally Posted by slubu

I'm confused. It seems upon receipt and installation of a v2, you can be at any boost level. I have been following the threads and people's boosts are all over the place. Some have to go down to the 80%'s to hit 15psi, others have to go up to the mid 90s. So then the question becomes you have to datalog to see where you are, right?

But then I have seen conflicting information, like:



or



The above implies we do not need to datalog and we can just install and be on our merry way. However, my fear is if the standard 90% puts my car over 15psi, then I am in trouble. My concern is if the standard 90% puts my car below 14psi, I am really not getting what I paid for. Thus, datalogging is necessary...right?

[bmwzimmer]

We all have different mods, gasoline, weather, altitudes, etc... Seeing what your car is doing is a very good thing....

[rooster3.0]

No two cars are identical, why should the tunes be? And i think only one member on here lowered their values to ~80.

[Dustin Bramell]

Data logging is 100% optional. Yet, it is certainly an advantage our system has over others out there.

As for boost pressure, of hundreds of correctly installed systems out there, we have only seen a handful run over 15psi on the standard settings, and of those, we never see more than half a PSI or so over 15. A momentary occurrence of 15.5psi is certainly not enough to cause damage.

But this brings up a point that rarely is discussed. One of the things that separates the PROcede from the number of other systems out there are the tools we arm the user with. It is important to consider that if a particular car runs higher than normal boost with our system, chances are it will do it with other systems as well. With the PROcede the user is given the tools to confirm his or her boost pressure. Sure, if you had another system you could buy a boost gauge, but what good is that boost gauge, if there are no provissions to alter the boost if it isn't to your liking? This question is even more important in the case of the car which is underperforming.

Although, I must say that giving users these tools has created quite a bit of work on our part. Most of the work created stems from misinterpretation of the data. For instance, I have seen quite a few people post about a boost spike lasting 1 or 2 seconds right before the shift, on cars with automatic transmissions. As discussed with manual transmission cars, a spike occurs in the charge pipe (not the motor) when the throttle closes. On automatic transmission cars this spike tends to happen quite a bit longer, because the throttle closes gradually before redline. Because of this, the pressure in the charge pipe goes up almost linearly, as the throttle body begins to close. This occurrence does not manifest itself as a sharp spike, but rather a flat plateau of higher boost pressure, right before redline. This example, for instance is something that might not be immediately considered by the average customer.

At the end of the day, we have always felt that an informed customer is not only the best customer, but also the happiest customer.