E38/E67 ECM Speed Density Virtual VE table

[Blacky]

Do you mean what is the relationship between the 0-3000 virtual VE values in the E38 tables shown above and the "real" VE values we're all used to seeing in the LS1 and E40 controllers?

Regards
Paul

nice! how do you know what GMVE values should be there tho?

[redhardsupra]

Do you mean what is the relationship between the 0-3000 virtual VE values in the E38 tables shown above and the "real" VE values we're all used to seeing in the LS1 and E40 controllers?

Regards
Paul

no, i know that, i meant how do you know what do you want your target GMVE to be? are you still intending to work with BEN's and adjust GMVE based on changes in AFR?

[Blacky]

no, i know that, i meant how do you know what do you want your target GMVE to be? are you still intending to work with BEN's and adjust GMVE based on changes in AFR?

I guess that's up to the individual tuner. The current setup will work with our existing AutoVE Tuning process - using a wide band and BEN factors.

Regards
Paul

[GMPX]

Here's another great example of how easy this is to use.
If any of the Holden tuners are looking at this they will be well aware of the dangerous lean dive these cars take once you put a 2bar Map sensor on and hit boost. Once you look at the stock VE map you can see why...
Just as the engine is coming on to boost the VE values take a plunge somewhere between 1000 and 3400 RPM.



You might be thinking what was GM on??, nothing, it's fine, this is not a boosted engine, so above 105kPa (well less actually) the map is fine.
So, now with our Virtual VE, just grab the problem area, blend, smooth, click the Recalculate VE coefficients button and 10 seconds later your VE is no longer in engine melt down zone. Of course this VE would need more tuning beyond the stock settings, but try that 'simple' change with Excel (or any other E38/E67 tuning software ).



Cheers,
Ross

[GMPX]

I'll respond here to save some Emails (because the question has already been asked).
The first release will not have the ability to factor in cam phasing (if the engine has it fitted). It will always assume 0deg cam phasing, majority of the GenIV engines do not run this yet, it seems the L92 in the Escalade etc is the only one. However, work is already well underway with regards to this portion of it, however, cam phasing does add many levels of "what if's" and implementing it properly will be tricky.
However, just out of interest, here is what the VE table looks like on an Escalade with 0deg cam phasing and with 15 degrees cam phasing factored in.

At 0 Degrees:




At 15 Degrees:

[AGRO]

This is FREAKING AWSOME guys, unbeleivable, for the guys that havnt yet done the speed density (e38) it was extremely painfull, this virtual ve is the best thing since sliced bread!.


huge congrats to all involved


EFI LIVE ROCKS!!!

[bink]

Would someone, anyone, email me a couple of stock E38 and E67 files - so I can get acquainted. Thanks!!

email- dkoch3@cinci.rr.com

Cheers,
joel

[redhardsupra]

or maybe just post them to the repository so we can all get them?

[bink]

or maybe just post them to the repository so we can all get them?

They are there..."New".

[Redline Motorsports]

Ross,

Is it safe to state that each of 30 zones can now be specifically tagged to certain load/rpm area. For example; zone 2-4 are idle and 27-30 at WOT between 4000-5000 rpm??

Can you better breakdown what happens within each zone and how the zones interact?

Howard