Unsafe timing map?
#31
Evolved Member
Hi
I think the fuel map is pretty bad as well. There has been adjustment to the vacum area, where the car should be running closed loop, why would you change the fueling there?
The horizontal variation between the cells is very strange to, look at the 2500 RPM section, 10.2 to 9.5 in the 200 to 220 load cells? It doesn't look like its been tuned for part-throtle running either.
MB
I think the fuel map is pretty bad as well. There has been adjustment to the vacum area, where the car should be running closed loop, why would you change the fueling there?
The horizontal variation between the cells is very strange to, look at the 2500 RPM section, 10.2 to 9.5 in the 200 to 220 load cells? It doesn't look like its been tuned for part-throtle running either.
MB
#34
Evolved Member
iTrader: (9)
Originally Posted by tuning g
must have been riding on the low octane map all day every day
Originally Posted by heyzeus11
the high and low timing maps were both equal to each other. His car was tuned by one of the local shops
#35
EvoM Guru
iTrader: (5)
Stock coils can sometimes require additional timing, especially if their older and have some trouble recycling.. I was running aggressive timing (not at peak torque like that, let me be clear there I never ran more than 10-11 degrees at peak torque, and that was pushing it) but when I added a DLI2, the coils "woke up" and I had to pull at least 2 degrees from my entire timing map..
This map "scares" me.. But we don't know what conditions it was tuned under, and what its purpose is for..
I have found on the stock turbo I made much better power running more timing and less boost.. I really can't say too much more about this map simply because there may have been a reason for it to be done that way..
Again.. There's no point in speculating anymore until theres a good log.. We need to know the AFRs this car is seeing, if this car has a boost gage problem reading 24psi when its actually 15-17 psi.. then I can see why it might have gotten that aggressive.. Plus if this was dyno tuned, where's the dyno chart and actual results?
This map "scares" me.. But we don't know what conditions it was tuned under, and what its purpose is for..
I have found on the stock turbo I made much better power running more timing and less boost.. I really can't say too much more about this map simply because there may have been a reason for it to be done that way..
Again.. There's no point in speculating anymore until theres a good log.. We need to know the AFRs this car is seeing, if this car has a boost gage problem reading 24psi when its actually 15-17 psi.. then I can see why it might have gotten that aggressive.. Plus if this was dyno tuned, where's the dyno chart and actual results?
#36
Evolved Member
iTrader: (9)
Your correct, if tuner was just setting the map to whatever condition was requested or given to him, then we can't judge whatever amt of timing is on there.
With 17psi, racegas, cold plugs, and/or malfunctioning/weak ignition pulse, then I can see a repected tuner (unfamiliar with evos) setting that amt of timing
With 17psi, racegas, cold plugs, and/or malfunctioning/weak ignition pulse, then I can see a repected tuner (unfamiliar with evos) setting that amt of timing
#44
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Originally Posted by DynoFlash
I think its a Subaru timing map that someone loaded in error - those Subarus can really hold the timing (maybe they just combust slower)
#45
Evolved Member
iTrader: (9)
Subies have small lungs, I don't know what compression they have but I bet what Al said likely describes what happened here.
About a year or two ago another individual (unfortunately for him standalone AEMEMS) got tuned by his local tuner. Had the same 15 degrees at peak, 2000 rpm wide. Without stock ECU protection his engine popped.https://www.evolutionm.net/forums/sh...ght=rolo+blown
About a year or two ago another individual (unfortunately for him standalone AEMEMS) got tuned by his local tuner. Had the same 15 degrees at peak, 2000 rpm wide. Without stock ECU protection his engine popped.https://www.evolutionm.net/forums/sh...ght=rolo+blown
Last edited by C6C6CH3vo; Sep 13, 2006 at 06:16 AM.