Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Tuning (http://www.the370z.com/tuning/)
-   -   UpRev full tuning capabitliy?? (http://www.the370z.com/tuning/22668-uprev-full-tuning-capabitliy.html)

Chris@FsP 08-05-2010 10:38 PM
Quote:
Originally Posted by G37Sam (Post 658498)
Thing is, UpRev can control ECU parameters directly, but the VVEL has it's own controller I believe, can that be accessed from the OBD2 port? And would getting more lift be as simple as editing a number in some table somewhere? Or would the mechanical capabilities of the VVEL restrict that?

God I hate how this VVEL is a black box that we just have to live with
The ECU calculates the target valve lift based on driving conditions, and sends that info to the VVEL control module, which in turn controls the actuator motor. So, theoretically, UpRev should have the capability to precisely control VVEL.

Jordo! 08-05-2010 11:10 PM
Quote:
Originally Posted by Chris@FsP (Post 661529)
The ECU calculates the target valve lift based on driving conditions, and sends that info to the VVEL control module, which in turn controls the actuator motor. So, theoretically, UpRev should have the capability to precisely control VVEL.
Yeah, but it's probably determined by referencing a load x RPM table, so it would still be ideal to edit the actual values in the table directly.

Although, I suppose they could spoof it by sending altered MAF/load readings, and then just adjust AFR and ignition to compensate, but that might create all sorts of weird driveability quirks.

G37Sam 08-06-2010 07:52 AM
Quote:
Originally Posted by Chris@FsP (Post 661529)
The ECU calculates the target valve lift based on driving conditions, and sends that info to the VVEL control module, which in turn controls the actuator motor. So, theoretically, UpRev should have the capability to precisely control VVEL.
Calculate? Are you certain it's not just another values in a table like Jordo suggested

roplusbee 08-06-2010 08:44 AM
I am sure that they have either been working on a solution diligently (or just sitting on it). The thing that has me wondering is...........why did Cobb jump ship like they did? Is the solution that difficult? Is it not cost effective?

Nitex 08-06-2010 09:00 AM
Quote:
Originally Posted by roplusbee (Post 661894)
I am sure that they have either been working on a solution diligently (or just sitting on it). The thing that has me wondering is...........why did Cobb jump ship like they did? Is the solution that difficult? Is it not cost effective?
damn good question. I also heard AP support for the 370z was no longer. I don't understand that, as trey cobb owns and drives a 370z doesn't he? weird..

ArtK 05-20-2011 08:44 AM
is it a waste of money to uprev a stock 370z? What would I get about a 5-10hp gain, for how much?

esfourteen 05-20-2011 10:55 AM
Quote:
Originally Posted by ArtK (Post 1122955)
is it a waste of money to uprev a stock 370z? What would I get about a 5-10hp gain, for how much?
yes, a waste of money.

Deadman 06-03-2011 07:20 PM
so this leaves everyone to wonder what type of HP can be made by cracking the vvel safe... lol

Time will tell! :P

Nismo221 06-03-2011 07:39 PM
wow this is way over my head lol. I guess all I understand is left foot up and right foot down! :tup:


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