This may be dumb to some of you but i was just currious what some of you think it might be.

when i got home today, i paked, set the ebrake and put the car in N clutch out (its and M6). I then slowly brought it up to about 5500rpms. whats weird is around 4k or so the speedo started moving. It got up to about 22 mph at 5500 rpm.
Whats going on?? I thought i understood how these this work, i swear the output shaft has to move to register MPH. does this mean i am adding mile to my car when i rev it? hehe...that sucks

someone go see if there car does this...

 

My M5 doesn't do it

 

i've noticed that my car does that also when ive revved it up. ive also seen it in other cars. i dont think its anything to worry about.

 

My A4 does it, at least on quick revs, I noticed it when I seafoamed it...got up to about 15mph around 5k...

 

hmmm, wierddd. i guess that good tho, i was make sure i dont have a short in that department or screww something up with my computer tuning

 

lol, well we might all just have the same problem, not alot of replies yet to the post

 

My a4 does it when I start the car in park, but then you can't really consider my car to be very close to stock.

Jon

 

My LT1 dose that aswell. I think it might be some magnetic thing.

 

My A4 car does it.... I wouldn't worry about it...