Sweet, finally! lol.

 

Yup, use the Evo X figures. Like Bryan @ GST said.

 

 

Try copying the Evo's MAP tables.

 

So I managed to get a pull logging the two input parameters to the load calculation:



Somewhat interesting...

You can see that Load is tracking the lowest value out of MAPCalcs and MAFCalcs...

I have simplified the algorithm somewhat, but thats essentially what is going on.

I dont know whats with the very jump line near peak boost...

The psi graph isn't smooth because I am grouping it with RPM to speed up logging (so the log rate for both is 1/2), I am only logging 4 things, so I am getting 20 rows a second..

 

Interesting indeed...is there a way to get rid of one so it just goes off of one or the other, I mean what is the reasoning behind using both? Is one better at lower rpm then one at high rpm, lol?

Ps. this with the 4 bar?

 

not entirely sure yet.. still digging through the code...

not with the 4bar... havn't had time to install it yet

 

so I think that MAFCalcs jaggedy bit is some sort of compressor surge..

I'm going to advance my ExMIVEC a degree or so and see if it goes away...

 

The line bounces around because of what is happening at the MAF.

During spool, we are sucking in as much air as possible, in fact we are shoving more air into the system than the engine needs, hence we build pressure . But as soon as we hit our peak boost, we need to stop the turbo from spinning any faster. So we open the waste gate. The system has plenty of air in it to keep a smooth boost curve, but the turbo stops sucking so much air. And the MAF shows that air stopped flowing.
I think the waste gate will actually bounce a bit as it tries to vent some of the exhaust gases. Because there is so much volume in the system, pulsed input will show up smooth in the intake manifold.

So in the end, it is your WGA / WGDC / 3-port that is the cause.

 

Tephra, did you get my email (subject: grey tables for map scaling)? I'm stuck, ready to test, up a creek.

 

ive sent emails to Dave and Scheides on how to do the Omni 4bar, its untested at the moment, but I will be doing testing and a formal post up this weekend

 

I can't wait!

 

Thanks again Tephra, I will put this 4bar to use next Friday on my tune...36psi+ here i come!

 

Who's awesome? Tehpra is! Don't forget to send a donation, the man deserves every penny!

[youtube]gUK8KkU-8TQ[/youtube]


(write-up coming verrrrry soon!)

ps--no I didn't just sit in my garage and rev it, LOL! I drove around, will be logging and reporting back soon. Just thought I'd share, I know murlo is chomping at the bit for this one.

 

yes I just did some WOT pulls using the omni4bar.

first thing I noticed when installing is - it didn't nearly holdin as nice as the stock one... hopefully it was just cold...