how accurate is vag-com torque measuring block (120)
03-12-2003, 02:14 PM
#1
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how accurate is vag-com torque measuring block (120)
I have APR stage 1+ 93 oct. and the max torque i get is 311nm which is about 229lb-ft of torque..any one have any ideas. or is the vag-com correct.
03-12-2003, 03:36 PM
#2
i've found to be inaccurate after chipping...
with a negative ~10-20% deviation from what it should be... which would make the readings VAG-COM is showing you slightly higher (+5% from my experience) than your "real" wheel hp.
after chipping, vag-com kinda freaks out taking readings. the only way to accurately gauge is to (obviously) go to a dyno, you won't get very accurate readings. also i think the larger the readings (ie, if you read 350nm as opposed to 311) i think the margin of error becomes larger (as it is based on stock chip readings, not tuned ECU readings)
make sense? probably not from my explanation =)
after chipping, vag-com kinda freaks out taking readings. the only way to accurately gauge is to (obviously) go to a dyno, you won't get very accurate readings. also i think the larger the readings (ie, if you read 350nm as opposed to 311) i think the margin of error becomes larger (as it is based on stock chip readings, not tuned ECU readings)
make sense? probably not from my explanation =)
03-12-2003, 05:15 PM
#4
no - the incorrect readings are attributed the ECU being modified
coocoomike tried reverting to "stock" mode with the APR ECU and it didn't make any difference - the numbers were still off. all the numbers are based on stock "estimates" - but once the ECU is modified (soldered, re-programmed) then it's all over for accurate block 115 readings =) at least imho. good luck.
03-18-2003, 02:55 PM
#6
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Might still be useful for measuring changes (relative differences) from mods...
but typically I just log airflow and timing (block 003) - they are the basic inputs into this torque calculation anyway.
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