7AT 3.692 Gear Review

xavier

Hi,

Lot of people, with 7AT 370z, change the final drive (9,97% --> 47/14 to 48/13) … I am interesting but …
The 7 automatic 370z gearbox have "downshift rev matching" - DRM , it permit synchro between engine and gear box during downshift.

Does pumpkin is from a 370z, 350z, manual transmission... ?
on the pumpkin, there are 2 sensors for ABS and speed.
on 350z there are 46 teeth for ABS.
on 370z there are 48 teeth for ABS.
I don't know if thoots number needed, and is respect for 370z ABS.
the only problem can come from final drive (9,97% --> 47/14 to 48/13).

Does "downshift rev matching" function change or run or not?
any problem, impact or not ?
all is ok to 7500 rpm for change gear?
do you make ecu reflash for solve "downshift rev matching" problem ?
at how many prm, what RPM value it not run?
what happen?
any gear box problem ?
Else, all is ok..

Thanks
Best regards
Xavier

Felix 808

Q: Does pumpkin is from a 370z, 350z, manual transmission... ?

A: Yes Either 350/ 370 Manual diff will work, but only the 370 have the 3.69, I believe 350 = 3.55 gears

Q: on the pumpkin, there are 2 sensors for ABS and speed.
on 350z there are 46 teeth for ABS.
on 370z there are 48 teeth for ABS.

A: I would get the 370 axles as the computer is set up to read the tone rings already.

Q: Does "downshift rev matching" function change or run or not?
any problem, impact or not ?

A: No impact, continues to work. You maybe able to reset your ECU to get Cruise control to work again, I was.

HTH

__________________
Semper Fi

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