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      03-13-2013, 05:16 PM   #111
CT335xi
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Drives: e90 335xi, evo 8, gmc syclone
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Quote:
Originally Posted by dk79 View Post
my cobb ap actually reads 0.1-0.2 sec lower than g timer so I believe more in the g timer. with cobb 0 to 0 time is 3.7.

if I correct for 1ft roll out then the time will improve further.
there was an article in caranddriver comparing several of these devices and they were pretty close around 1/10th to 2/10th of secs, g-timer came a bit slower than gps measurements. so if gps is used then the time might be better by atleast 0.1 secs.

here is a link to comparison of several devices and seems g timer is 0.2 sec slower to vbox.

http://media.caranddriver.com/files/...er-results.pdf
Good info. I never knew that the g-timer was that close to the other devices? I actually have a g-timer. I guess I'll have to set it up and run it on the same run as my cobb ap to compare them to each other
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