Search found 25 matches

by JAS
Wed Jul 24, 2019 11:27 am
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

No,still running E85,gasoline sucks in comparsion.Running 10-12 degrees higher igntion with e85 than gasoline. Dawes device makes turbo spool faster because there is no pressure ro wastegate until desired pressure is reached.Taking pressure from turbos compressorhousing to wastegate is the worst sol...
by JAS
Mon Jul 15, 2019 6:35 am
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

Turbo is by now replaced.
Bought a Link knockblock,conntected to knocksensor I can hear sounds from engine,knocking,even small knockings are heared very clearly.
Great tuning tool!
by JAS
Mon Jul 08, 2019 8:17 pm
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

Update Have now been running and testing a while with the new setup. Had some problems keeping boost,boost was falling off above 4,5k rpm... Solution to prevent boostfall was to feed wastegate from manifold,not from turbohousing.Also added a "Dawes device" which only allows pressure to wastegate whe...
by JAS
Tue Jun 11, 2019 11:00 pm
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

Work in progress,delayed by Sweden Rock Festival :twisted: A new headbult-stud messed up my threads in the block....no more cheap crapy bolts...Drilled and installed Heli-coil insert Pistons and rods are installed,this configuration gives 10:01 instead of 10,5:1 compression. New 2mm headgasket,kind ...
by JAS
Thu May 30, 2019 11:58 pm
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

Thanks for your superior info olafu,very useable! Have teared apart engine now and it was like suspected.2 cracks betwwen pistonrings. Picked up and started to prepare 6pcs of NonVanos pistons and rods,gonna to setup with new pistonrings.Ringgap will be set to 0,5mm on upper ring and 0,6 on lower co...
by JAS
Mon May 27, 2019 9:46 pm
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

I found a diagram somewhere of Vanos related to rpm/load,but i can´t find now... Vanos stays in retard the whole way after ~5k rpm. Will post some pics later,pulled head of yesterday.Gasket and head looks nice,no knockingmarks on pistons.Sure there is a crack on piston between rings perhaps even cra...
by JAS
Mon May 27, 2019 3:27 am
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

Quite sure that headgasket is not my problem,there is no smoke,only less compression and more crankvent. started to tear engine apart yesterday,so soon you will have an answer. Vanos is swithing to advance somewhere about 1800rpm and back to retard about 5k related to load.I can see very clearly on ...
by JAS
Fri May 24, 2019 11:41 am
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

Tunerpro do not trace WOT maps! Trace PT maps and when tracing light turns to "waiting" you should be in WOT map if everything is ok eg not MAF over limit and so on. I forgott to turn off Lambda adaption,3 full WOT sweeps on third gear resulted in lean mixture,aboyt 14,5 on WOT.Now I have lost aboyt...
by JAS
Thu May 23, 2019 7:56 pm
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

No problem to read livedata with autocom,connected to 20pin round.

Very useful to read actual igntion no matter what igntiontable DME is reading,also no matter knockretarding.Autocom will show you realtime ignition.
Without autocom youre blind and you will only be guessing ignition!
by JAS
Sun May 19, 2019 8:08 pm
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

Thanks for info Olafu!
by JAS
Sun May 19, 2019 10:54 am
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

Been tuning&running today. With E85 you can advance ignition a lot!Peaking around 24degrees 5-6krpm in WOT-maps now. It requires a lot more of fuel to reach AFR11,5-12. Car pulls fantastic now,no hesitate just pulls down to rpm-limit,massive torque from 3k rpm and above. Have to run with Lambda-adap...
by JAS
Sun May 19, 2019 12:43 am
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

E85 is not cheaper to run,it´s only cheaper per liter but car wants about 30-40% more fuel...But cheaper peroformance,my friend told me that they are pulling about 20% more horsepower&Torque on E85 vs gasoline.Also lots easier to map...
by JAS
Sat May 18, 2019 12:31 pm
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

There is a scope called picoscope you can use on a laptop,don´t know what the cost just know we used them in a former jobb Ihad 10 years ago. Anyway,I´m giving up petrol now...10,5:1 compratio and boosted engine is not performing well,it still keeps knocking,not much but enough... Going to try E85 e...
by JAS
Fri May 17, 2019 1:07 am
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

Autocom R15.3 works fine with old cars such e36. AFR is 12-12,5 at WOT,if it drops under 12 I´m loosing power,also pay attention due to much fuel,oil inside cylinderwalls is washed away. Found out that problem with A/T Tranny is a common problem,there is a "2-3 Flare correction kit" to buy,it´s prob...
by JAS
Wed May 15, 2019 11:28 am
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

You´re right,TunerPro can´t trace maf above 2,44V I traced it with Autocom instead. I haven´t rescale anything but K-value.My calculated K-value should be around 0,36 but this makes low values on Load,so my solution was to set K-value 0,75 so load is peaking about 9,6,this gives me the whole maptabl...
by JAS
Tue May 14, 2019 8:12 pm
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

Yesterday we managed the car to run pretty well :D Problem with MAF-table was related to limits in 023D and limit for rpm/vs airflow. One of my knocksensors is probably broken and this is why it´s been so hard to map,no matter what ignition I adjusted the knockretarding took igntion down. Been runni...
by JAS
Thu May 09, 2019 10:35 am
Forum: Bosch
Topic: M3.3.1 413
Replies: 75
Views: 11357

Re: M3.3.1 413

Read this tread,good info! Having a problem with my MAF,when tracing i MAF-table it stops around 2,4-2,5V and don´t want to go any higher. Did a testrun and measured voltage directly on MAF,it´s about 4,7-4,8V when boosting 0,7bar and 5000k rpm. Is there something in the binfile blocking MAF-signal ...
by JAS
Sun May 05, 2019 6:41 am
Forum: Bosch
Topic: M3.3.1 motronic (413 and 506) tuning and XDF update?
Replies: 231
Views: 91609

Re: M3.3.1 motronic (413 and 506) tuning and XDF update?

Trying to understand how to rescale loadaxis after changing K.value for bigger injectors. Havde don scaling for injectors and Voltage offsets and started up car,adjusted fuelsmaps so car is running pretty smooth. But when I trace in maps with load it only reaches about half scale on load axis. Have ...
by JAS
Sat May 04, 2019 12:32 pm
Forum: Bosch
Topic: Rescaling K-value and AT-question
Replies: 6
Views: 573

Re: Rescaling K-value and AT-question

Some testing done.
Somehow I need to rescale load-axis.
Due to lower k-value for injectors it now only hits about 50% of load-axis.
Can anyone please advise me how to rescale load?
by JAS
Sun Apr 28, 2019 8:19 pm
Forum: Bosch
Topic: Rescaling K-value and AT-question
Replies: 6
Views: 573

Re: Rescaling K-value and AT-question

Replying myself.. Car has been started by now. K-value was fine and some minor adjustments to Voltage offset and car is running fine when warm. after adjustments in tables for Temp Compensation cold start works really good now. Retarded ingnition between 7-15degrees in tables for ignition for all lo...
by JAS
Fri Apr 26, 2019 2:35 am
Forum: Bosch
Topic: Rescaling K-value and AT-question
Replies: 6
Views: 573

Re: Rescaling K-value and AT-question

Thanks for reply. 192cc at 3,5bar fuelpresssure is oem injectors for m50b25,I´m running green bosch ..968 540cc at 3,5bar. Lowmounted turbo,T3/T4 hybrid,T3 exhaust with T4 compressor. Oem MAF M50B25 Aiming for 300-350hp,torque is limiting me due to automatic tranny.Max torque is 310Nm for a 5HP18. M...
by JAS
Thu Apr 25, 2019 11:09 am
Forum: Bosch
Topic: Rescaling K-value and AT-question
Replies: 6
Views: 573

Re: Rescaling K-value and AT-question

No one?
by JAS
Wed Apr 24, 2019 9:09 pm
Forum: Bosch
Topic: Rescaling K-value and AT-question
Replies: 6
Views: 573

Re: Rescaling K-value and AT-question

540cc/190cc=2,84 is the difference for new injectors.

K value 1.0/2,84=0,39 new k value

Still wondering if I need to rescale every single map with Load?Or just fuelmaps?
by JAS
Wed Apr 24, 2019 4:54 am
Forum: Bosch
Topic: Rescaling K-value and AT-question
Replies: 6
Views: 573

Rescaling K-value and AT-question

Searched and read about rescaling when upgrading injectors from stock,some questions. Do I have to rescale every single load-map?Not only load-maps for fuel? Car is equipped with 413 red label and 623chip M50B25 single Vanos Injectors upgraded from stock 190cc to 540cc at 3,5bar fuelpressure(Bosch E...