Nuclearfishin, you an artist. Easy to understand and everyone should understand your example.


Rix, Thanks for taking the drawing a step further with your detailed explanation. So, I only need to find a shirt that has my tuners logo on its sleeve now. All jokes aside, great info. Nice job.


Mitch, that photo you share, is that utilizing your accesstuner software?

 

Mitch is using MegaLogViewer

 

Thanks Ron. I'll have a look into it.

 

I like it I've been using it for a couple months teaching myself as I go. It's inexpensive and pretty strait forward.

 

That durametric doesn't support knock/ignition retard per cyclinder??

Or that our engines have 2 knock sensor's - one on each bank???

https://www.6speedonline.com/forums/996-turbo-gt2/275710-data-logging-durametric.html#post3541867

 

I think they way you're phrasing it makes it sound strange. No engine that I'm aware of has a knock sensor per cylinder... It's a perfectly standard practice to use a single sensor per bank and determine knock events by time.

The Cobb AP or Durametric aren't calculating this, the ECU is. Whatever you are using to datalog is only taking the data from the ECU, it doesn't really have a part in generating or interpreting it other than perhaps displaying it in different units to make it more human readable.

 

Agreed.

I'm not aware of durametric displaying this information. I know Cobb and UMW do, however I'm not sure the scale is relative to degrees or some some index factor.

 

Went to the strip last night and did some runs (no data logging however) and can confirm the car seems to be running good. I was trapping at 127 mph, however my ET's were 11.7!!!! My 60 foot times tell the whole story, they're around 2.1 which is horrible compared to what I used to run (1.5-1.6). For some reason the car is just not building much boost during launch mode. It used to build much stronger, now it gets a couple psi and just stays there. The first 100 ft the car is barely rolling out, then the power kicks in and it goes like a bat out of hell. The car is holding 21+ psi of boost during the run, so I don't think it's a boost leak problem. Any other ideas that would relate to launch only but not affect the car otherwise?

 

I use datazap it free and works great.

http://www.datazap.me

 

BMW in 2007 https://www.press.bmwgroup.com/press...obilePage=true

All BMW DI engines are rumored to have knock sensors in the injectors

 

Hi all,

@xbox_fan: had a look into your datalog, boost was pretty good, but knocks are sometimes -6,0 with some correction on timing.

Since I am currently in Progress with a customs tune and datalog each step during the fine tuning, can anybody tell me, which knocks and which ignition angle(timing) is "good" and from which numbers they will be dangerous to e.g. My pistons or the VTG?

Cheers