E36 402
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E36 402
Hey lads,
Been experimenting with tuning my 325 non vanos's, it has a 402 dme.
Can anyone show me how/ slash point me in the right direction of getting it to burble. I had a mess around on the partial throttle fuel + ignition maps. But it didn't seem to make any difference.
Any help is appreciated,
Cheers
Been experimenting with tuning my 325 non vanos's, it has a 402 dme.
Can anyone show me how/ slash point me in the right direction of getting it to burble. I had a mess around on the partial throttle fuel + ignition maps. But it didn't seem to make any difference.
Any help is appreciated,
Cheers
Last edited by BumpPapy on Sat Dec 29, 2018 8:13 pm, edited 2 times in total.
I did some tests on a 403.
First you have to set overrun fuel cut to the same value than your rev limit, To allow fuel injection on overrun.
Then you have to play with fueling and ignition on idle maps.
The problem is that there must be a limit in "ignition angle variation speed" or something like that, causing a delay in exhaust pops.
Anyway I bas some good results with -10/-15° retard and AFRs relatively lean like 17 or something like that.
For very big pops it could be useful To play with ICV position on overrun but I've never test it...
First you have to set overrun fuel cut to the same value than your rev limit, To allow fuel injection on overrun.
Then you have to play with fueling and ignition on idle maps.
The problem is that there must be a limit in "ignition angle variation speed" or something like that, causing a delay in exhaust pops.
Anyway I bas some good results with -10/-15° retard and AFRs relatively lean like 17 or something like that.
For very big pops it could be useful To play with ICV position on overrun but I've never test it...
Any chance you could email me your test map?Evil wrote:I did some tests on a 403.
First you have to set overrun fuel cut to the same value than your rev limit, To allow fuel injection on overrun.
Then you have to play with fueling and ignition on idle maps.
The problem is that there must be a limit in "ignition angle variation speed" or something like that, causing a delay in exhaust pops.
Anyway I bas some good results with -10/-15° retard and AFRs relatively lean like 17 or something like that.
For very big pops it could be useful To play with ICV position on overrun but I've never test it...
Unfortunately I didn't keep it, sorry... but if you need I can tell you map adresses for your 402.
Tuning for pop1bang is not so different than the rest, just set an AFR on overrun and try different ignition angles depending on which type of pops you want. A good thing to do could be to extend Idle Fuel and Ignition maps for best resolution at higher rpms, because i'm quite sure that the ideal angle at 3000rpm is different at 6000
Tuning for pop1bang is not so different than the rest, just set an AFR on overrun and try different ignition angles depending on which type of pops you want. A good thing to do could be to extend Idle Fuel and Ignition maps for best resolution at higher rpms, because i'm quite sure that the ideal angle at 3000rpm is different at 6000
Addresses would be good, do you have a full fleshed out 402 xdf?Evil wrote:Unfortunately I didn't keep it, sorry... but if you need I can tell you map adresses for your 402.
Tuning for pop1bang is not so different than the rest, just set an AFR on overrun and try different ignition angles depending on which type of pops you want. A good thing to do could be to extend Idle Fuel and Ignition maps for best resolution at higher rpms, because i'm quite sure that the ideal angle at 3000rpm is different at 6000
https://drive.google.com/open?id=1tkNE5 ... xm_b4EXBU3Evil wrote:is it a soft 098 or 599?
I have no XDF for 402 but I can find map for burble easily (very similar to 403)
Im a noob. thought it was 599 not sure though.
You're lucky I have a XDF for 402 599, here it is :
https://transfernow.net/41i2k233o85w
not "full xdf" but you'll find all you need .
All tables after "closed loop lambda" are wrong because I used a 403 xdf as basis and didn't delete those ^^
https://transfernow.net/41i2k233o85w
not "full xdf" but you'll find all you need .
All tables after "closed loop lambda" are wrong because I used a 403 xdf as basis and didn't delete those ^^
The idle ignition didn't seem to do much on that definition. This is what I got so far: https://drive.google.com/file/d/1UMeWZp ... p=drivesdkEvil wrote:You're lucky I have a XDF for 402 599, here it is :
https://transfernow.net/41i2k233o85w
not "full xdf" but you'll find all you need .
All tables after "closed loop lambda" are wrong because I used a 403 xdf as basis and didn't delete those ^^
Just to clarify how to I alter the axis of the table? To add more definition of higher rpm zones?
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- Joined: Thu Nov 01, 2018 4:35 pm
Re: E36 402
hello, did you found good settings for big pops?
i'm trying to tweak for some nice burble, i've retarded idle ignition, lean idle and allowed fueling on overrun, my results are almost same as yours, but i want more
i'm trying to tweak for some nice burble, i've retarded idle ignition, lean idle and allowed fueling on overrun, my results are almost same as yours, but i want more
Re: E36 402
If you want more try to retard ignition timing
For some kind of "antilag" you need to flow more air on overrun, by opening more the ICV
For some kind of "antilag" you need to flow more air on overrun, by opening more the ICV
Re: E36 402
Someone know about overrun adress? Or overrun detection time, timer ...?
Re: E36 402
0xDC73 (0xDC79-DC7C)overrun fuel cut rpm.
*Edit thats for 413. I don't know for 402.
*Edit thats for 413. I don't know for 402.