A quick and easy way to street tune your CSL conversion for drivability.

[karter16]

Bry5on and heinzboehmer (hope you don't mind me tagging you both!) you've driven each other's cars post this tuning process yeah? Keen to know what differences there are in "drivability" between flap and no-flap setups that are properly tuned? Any thoughts/comments on that?

[heinzboehmer]

Bry5on and heinzboehmer (hope you don't mind me tagging you both!) you've driven each other's cars post this tuning process yeah? Keen to know what differences there are in "drivability" between flap and no-flap setups that are properly tuned? Any thoughts/comments on that?

I bet Bryson will tell you his flap makes a difference in driveability cause he drives his car a lot more than me.

However, I haven't noticed enough of a difference to make me want to get the flap.

(Also Bryson's car has smaller diameter tires, which, to me, makes a much bigger difference in driveability)

[Bry5on]

Bry5on and heinzboehmer (hope you don't mind me tagging you both!) you've driven each other's cars post this tuning process yeah? Keen to know what differences there are in "drivability" between flap and no-flap setups that are properly tuned? Any thoughts/comments on that?

No difference that I can tell, really just the noise. I like having quiet mode available - I drive probably 60/40 in sport (loud) mode where the flap opens at 3300rpm or 40mph.

[inlinesix123]

Just finished this. The car is changed, shifts fight the engine a lot less, downshifts are smoother. 10/10
Thanks to Suleiman Pasha.

[YulCmr]

Hi !

I'm currently in the process of logging and correcting the VE map. (3rd iteration as of now, slowly getting there)
Can someone confirm (or correct me) that, VE Table is only used during Closed loop ?

I'm doing this process over a WOT corrected tune, so I just want to be sure that during WOT, ECU does not use VE table. (Which would interfere with the current WOT tune)

Thank you for your work guys, this is quite easy to understand and replicate (even for a noob like me)

[Bry5on]

The WOT table is a multiplier applied over certain cells in the VE table. So changing your VE table can affect your WOT map. The correct way to tune WOT is actually to tune the VE table, but as you state, the car runs open loop in these sections so this method should achieve the same outcome. No, this method will not change your WOT tuning and AFRs.

[YulCmr]

The WOT table is a multiplier applied over certain cells in the VE table. So changing your VE table can affect your WOT map. The correct way to tune WOT is actually to tune the VE table, but as you state, the car runs open loop in these sections so this method should achieve the same outcome. No, this method will not change your WOT tuning and AFRs.

Thank you for your answer.

After a quick reading of the tune, full load table was indeed modified, but so was the big Alpha N table. (now richer on bottom end and leaner on top end).

If I get corrections in my VE table using this method, can it "fine tune" the tune I got ?

From my understanding, as my VE table keeps dropping after 3 passes, it means that I was running a bit rich with this tune ?



As far as I can tell, drivability has been GREATLY improved after 3 passes !

Thank you guys.

[ac427]

I have Testo running ok but how and what do i need to log?

[ac427]

Sorry for another thicko question.

If TestO is used to log the data and then Excel or MathLab is used view and to manipulate the data.

What purpose does MegaLogViewerHD serve?

[bmwfnatic]

Sorry for another thicko question.

If TestO is used to log the data and then Excel or MathLab is used view and to manipulate the data.

What purpose does MegaLogViewerHD serve?

Filtering the log and compiling the logged data into the required table.

[ac427]

Filtering the log and compiling the logged data into the required table.

Thanks, Are there any suitable alternatives to MegeLogViewer HD ?

Would https://datazap.me/ do ok or is MLVHD worth the $50 ?