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GTI Data Logging Compendium
- Thread starter A_Bowers
- Start date
mdhollis
Go Kart Champion
Bowers you should update your OP with this tweak for the micro-can cable. I guess we can run into problems comparing large data sample logs to smaller ones, especially in graphs
Arin@APR
GOLFMK7 Official Sponsor
Another way to get more resolution out of vag-com is to choose data from the same groups.
For example, don't grab RPM from group 1 and then nothing else from that group.
If you have a group where you're grabbing other items, and RPM is in that group, grab RPM from that group instead.
The fewer you use, the faster logging will be.
For example, don't grab RPM from group 1 and then nothing else from that group.
If you have a group where you're grabbing other items, and RPM is in that group, grab RPM from that group instead.
The fewer you use, the faster logging will be.
allset
Go Kart Champion
i dont think it matters, since the micro can is inherently limited to a max baud rate
How much timing pull is safe on apr tunes?
avihaitopor
Ready to race!
2012 SEAT LEON DSG
AWE/GIAC KO4
98 octane{93US}
AWE/GIAC KO4
98 octane{93US}
Attachments
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MAF.jpg -
Boost.jpg
allset
Go Kart Champion
there's no "safe" timing pull per say.
timing pull or retard is a reaction or a "safety" in simple terms. a way to look at it is if timing is consistently being pulled more than -6 ( further than -6 in the negative range) there could be a problem. occasional pull 0 to -3 is considered spec
mdhollis
Go Kart Champion
Nice, some GIAC logs. :thumbsup:
Can you try and post graphs of requested and actual boost on the same graph? Also ignition timing angle and timing retardation?
MAF looks nice and linear.
Ok... I see about -4,5 midrange and -3 at high rpm (5-6k) over 6k it is clear...
allset
Go Kart Champion
0 to 14 degrees and above is considered timing advance and is favorable b/c it in combination with ignition and piston position creates the most power.
0 to -12 and lower is timing pull and occurs for a number of reasons when conditions aren't right which reduces the power being made via the same process as above but its chiral-opposite.
rpm doesn't matter much u can pull in idle.
Last edited:
I know what you mean but I speak for timing pull...
allset
Go Kart Champion
ah, right, i misunderstood your post. yes anthing -4 to 0 is "ok" but u should be advancing timing under load at lower-mid to high rpms.
if u are pulling more than -4 or-6 under load at mid to high rpms, you may have a problem. u should most always be advacing timing under load not pulling
That's right... I have about +10 in midrange advancing to 18 at high rpms and cf pull about -4.5 in mid and falling to -3 at high... with 0 cf from 6 to 7k with 18.8° advance.
allset
Go Kart Champion
u should post the logs/graphs here. thats what this thread is for.
