My Tuning Goodies spreadsheet to help blow things up

[V8Bait]

So I just got done datalogging my first flash. I basically took all the timing/fuel/vanos jb4 pump flash values, your linear throttle map, the 335is WGDC values and put it a load target of ~10psi across the board and it took very well. Boost was spot on but was requesting and hitting about 10.9psi peak.

Now I'm trying to setup load by gear, and increased my targets to mimic the jb4 map1 boost curve(14 taper to 11).

Thanks again @V8Bait. After reading this I've been able to understand more tables and the true value that goes into them. Now I just gotta figure out why my requested load ramps up even though I have it set high from about 1700-4000 rpms without load by gear enabled.

Boost limit offset % in the boost control group of tables. Lower the values below 4k rpm some and it raises the boost target, haven't found an ideal yet but 80-90 should get you started. This was Dzenno's recent find.

[iminhell1]

why the $#@! can I never post anything ...
stupid $#@!ing 'rep' bull$#@! ...

[iminhell1]

Thanks 'Bait.





I can't recall what paper this came from, actually it was only a few and I extrapolated the rest.
With a few more variables (piston speed and air density) you can built a very close, but still theoretical, ignition table.

[V8Bait]

Thanks 'Bait.


http://www.benzboost.com/images/impo...9d8e8936-1.png


I can't recall what paper this came from, actually it was only a few and I extrapolated the rest.
With a few more variables (piston speed and air density) you can built a very close, but still theoretical, ignition table.

A few more variables? Like the ones I've been using to model the N54 here?

Wasn't going to post anything since it's more just me screwing around from Saturday, but theoretical models are fun (still no vvt modeling in the calibration along other holes). I especially liked the MBT timing curve it spat out at the bottom.

[iminhell1]

That looks to be far beyond anything I've personally modeled. I can handle mechanical aspects, static and dynamic. But any further than that I haven't ventured into, tried but takes much more time/knowledge than I have.
The bad part form me is all my work is on a failed HDD that I have not found a program that can recover it yet.

[Sticky]

The bad part form me is all my work is on a failed HDD that I have not found a program that can recover it yet.

There are data recovery specialists you can send it to if it's necessary.

[iminhell1]

I've really been trying to avoid that due to some questionable content.

[Sticky]

I've really been trying to avoid that due to some questionable content.

Heh, I'm sure we all understand.

[Den*]

Going to study your file thanks a lot, sorry couldn't add rep

[levanime]

thanks!

no bin files?

[Sw4y1313]

@V8Bait, whats your stance on throttle closures? I'm holding target all the way to redline, but I'm getting a ton of throttle closures. Or is that just the DME attempting to not overshoot target load?

I lowered the values in Boost Limit Offset % from 160 load and 4000rpms and down to 90, but it still hasn't shown any more than 10.7psi Boost Target from 1800-3000rpms. At 3000rpms is when it then ramps up again. I'm then hitting about 14.6psi by 3600rpms. After messing with the WGDC Adder/Ceiling tables I was able to hold boost better above 4000rpms and taper to 11psi by 6500rpms. So I seem to have fixed boost in the upper rpm's, but not down low.

[V8Bait]

@V8Bait, whats your stance on throttle closures? I'm holding target all the way to redline, but I'm getting a ton of throttle closures. Or is that just the DME attempting to not overshoot target load?

I lowered the values in Boost Limit Offset % from 160 load and 4000rpms and down to 90, but it still hasn't shown any more than 10.7psi Boost Target from 1800-3000rpms. At 3000rpms is when it then ramps up again. I'm then hitting about 14.6psi by 3600rpms. After messing with the WGDC Adder/Ceiling tables I was able to hold boost better above 4000rpms and taper to 11psi by 6500rpms. So I seem to have fixed boost in the upper rpm's, but not down low.

My stance on throttle closures is drink more on a Friday night and you don't notice them as much!

But seriously in answer to your question (disclaimer I've been following my own throttle closure advice) you need to realize that boost limit offset doesn't use load axis (i know right, this was a total shock to me too) those values are actually what equates to cam timing. At low "load" you have lots of overlap at high throttle angles, and a low lobe separation angle. So you need to drop the offset values at lower axis points than if they are load i guess I'm saying.

And why are you only running like 11psi???

[Sw4y1313]

My stance on throttle closures is drink more on a Friday night and you don't notice them as much!

But seriously in answer to your question (disclaimer I've been following my own throttle closure advice) you need to realize that boost limit offset doesn't use load axis (i know right, this was a total shock to me too) those values are actually what equates to cam timing. At low "load" you have lots of overlap at high throttle angles, and a low lobe separation angle. So you need to drop the offset values at lower axis points than if they are load i guess I'm saying.

And why are you only running like 11psi???

Hmmm, I wasn't expecting that.... Good to know! I'll mess with it a bit more. I don't have a laptop so making quick changes is a pain.

I'm only running 11psi up top because I'm 100% stock on 92oct. My load target is supposed to hit 12psi and taper to 10, but it wants to target 14.5psi instead. I'm ok with that because thats my goal anyways, but after I understand everything. I'm also getting timing corrections on 3 cylinders at random spots. I'm changing out my plugs tomorrow for NGK's. This car has 80k on it and I have no idea how old they are.

[Cyrus2327]

What ever happened to the xdf's and .bin's that Justin posted? Currently running shivs oft files lol

[CarAbuser]

What ever happened to the xdf's and .bin's that Justin posted? Currently running shivs oft files lol

I still have them saved but they aren't of any use. If you really want them I can upload them.

The XDFs have had all the bugs fixed and updated with new tables and are hosted on GitHub.

The BIN files are don't contain any changes you can't find in OFT maps or the backend flashes.

[Sticky]

If you really want them I can upload them.

Upload them here.

The XDFs have had all the bugs fixed and updated with new tables and are hosted on GitHub.

Upload them here as well. Make the database as full as possible of quality files.

I spent a ton of money on it for you guys. Use it.

[CarAbuser]

Upload them here.



Upload them here as well. Make the database as full as possible of quality files.

I spent a ton of money on it for you guys. Use it.

I've uploaded the ROMs but they haven't appeared. Does this just take time or was there an error in the upload?

[noorj]

nice spreadsheet @V8Bait! the only thing I would add is the potential of having to lower your fuel scalar to <1.0 if needed when running 93 as I had to, only kinda special thing needed is to edit the XDF limits on that table to be <1.0

[Sticky]

I've uploaded the ROMs but they haven't appeared. Does this just take time or was there an error in the upload?

They were approved... you should see them.

[V8Bait]

Hmmm, I wasn't expecting that.... Good to know! I'll mess with it a bit more. I don't have a laptop so making quick changes is a pain.

I'm only running 11psi up top because I'm 100% stock on 92oct. My load target is supposed to hit 12psi and taper to 10, but it wants to target 14.5psi instead. I'm ok with that because thats my goal anyways, but after I understand everything. I'm also getting timing corrections on 3 cylinders at random spots. I'm changing out my plugs tomorrow for NGK's. This car has 80k on it and I have no idea how old they are.

Load target and boost limit multiplier are the major ones for boost target, load is indexed by rpm and boost limit multiplier uses MAF. Try lowering them, the load vs boost calculation in the spreadsheet is not always accurate depending on other table values, but it gets you in the ballpark when you're new at all this.

I've uploaded the ROMs but they haven't appeared. Does this just take time or was there an error in the upload?

Those old maps are pretty simple, were made for bbflash and mostly used as backends so the boost control had pretty minimal effort. Someday i may put up new ones, just don't want to become 100 people's e-mechanic again.

[Suchoi]

Thank you for providing it to all the N54 enthusiast out there

looking forward to see some new things on your Spreadsheet in the future.

[levanime]

can not download file, unavailable

[Sticky]

can not download file, unavailable

Works fine for me?

[dickson]

[Bmw287]

Thanks for this!!