power2rice

iTrader: (8)

5at all came with 3.3 gears, z and g alike. the 2006 z and g had the HR engine, which actually feels quicker than the VQ motor. Having test driven a HR after driving my VQ, the engine pulls smoother into the high rpms and as we all know also has a higher rev limit. you might have the 3.5 if you are not the original owner and the previous owner swapped pumpkins.

g37 with 7at has 3.7 gears, fyi.

SexyRob

iTrader: (11)

please read the data I have provided before making statements like that.

while I'm not the original owner of mine there is no way the lady I bought it from had done anything to the car.

after data logging my rpms (for accuracy) I am in the same range as other 3.5 FD Gs/Zs with 5AT. It's also clearly shown in the service manual for 2006 and 2007 coupes.

sloppymax

iTrader: (1)

FSM shows 3.5 rfd for the 2006 sedan as well. Always thought my rpms were higher than what others posted but attributed it all to my tires which are 245/40/18 all around.

Going to place a call to consumer affairs to see if any can field a techical question. Makes me feel foolish if it is true, since I have been searching for a 3.5 diff for a month. I know there is some tach error but will get ahold of a friend's Cipher and confirm the engine speed.

SexyRob

iTrader: (11)

yeah I logged with cipher on mine.