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Old 12-02-2018, 03:03 PM   #56 (permalink)
xavier
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Join Date: Aug 2018
Location: france
Posts: 10
Drives: 370Z 7AT
Rep Power: 3362
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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
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