^^^^ If your not going the auto boundary route, this would be satisfactory I would think :D
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^^^^ If your not going the auto boundary route, this would be satisfactory I would think :D
Or is there a possibility of Custom OS's for E92's? All the Gen4 stuff I just put a COS in now and do away with VVE.
They have stated they aren't doing custom OS development anymore. I don't know the why's of it, I can only assume it is extremely time consuming.
maybe not as easy on a torque based ECM to do custom os.
Why would you NOT go the auto boundary route. Keith said an engineer found a better way to do the VVE modeling, but it absolutely is not. It is a hell of a lot clunkier than what his did, and you have to fight it because of the wierd stuff it does with the boundaries and "unsmoothing" Its supposed to be a virtual VE tool so we can take GMs coefficients and work a normal VE table, but Ive never had to chase a VE table around like a chicken with its head cut off. Serious PITA
How do you go about fixing that damned "unsmoothing" it does
So this is gonna stay like this Im assuming?
having issues with zone boundaries, a friend helped when it first happened by having me edit my zone PR boundaries in the tune but hit a different part and happened again and stuck.
Attempting* to work on VVE/SD but feel as though I am going in circles. multiply by half feels like its multiplying by whole no mater what I do and now this again.
This is part of the issues i brought up well over a year ago. However at the time my calculation seemed to be inverse and overshoot. Not to mention getting zone boundary errors
A good explanation as to why you get these problems from from HPT Engineering would go a long way for some. Goat Rope does a damn good job in helping,but he is not the Engineer that built this machine.
Quote Originally Posted by Higgs Boson View Post
I haven't had a chance to look at your tune but do you have the Prediction Coefficients all zero'd out?
No. I didn't know that was necessary. Just zero all of those tables?
I seen this done by other tuners. Why are they doing that? Is this only for n/a set ups or for FI as well?
I’m trying to understand the thought process of some tuners to zero out the predicted coefficients. I’ve come into contact with various cars tuned by top level tuners that are widely known and they have also zeroed out the predicted coefficients.
I know theirs more than one way to skin a cat but I was hoping someone could add some details to this.
Any more insight as to why these should be zero'd out?
Is this still the recommended method in 2022 for Gen V?
I looked through some other tune files and haven't seen anyone zero them out yet...unless it is only supposed to be temporary until the VVE table and therefore the VE Coefficients are dialed in.
i know for GEN IVs actual fueling wouldn't hit the commanded value while running a blended tune. I confirmed this on my own car 2014 ctsv. I had the prediction coefficients enabled and my actual fueling didn't hit commanded until I was above the "high rpm disable" for dynamic air. Once all the prediction coefficients were zeroed, actual fueling hit commanded no matter what rpm I was at
NEVER 0 out the prediction coefficients on a GenV platform ;D Not unless you want to experience the gen4 phantom fuel dumps and cuts on a gen V!!!