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Discussion Starter #1
Here are the speeds that the 350Z will reach in each gear if you take it to the rev limiter. Note that the limiter for the manual is at 6,600rpm, while for the automatic Zed it is at 7,000rpm. Also note that the speeds listed here can vary by good 4kph depending on the state of your tyres and pressures that you're running.

Manual 350Z @ 6,600rpm:
- 1st gear = 61.0kph
- 2nd gear = 99.6kph
- 3rd gear = 142.5kph
- 4th gear = 182.1kph
- 5th gear = 231.5kph
- 6th gear = 291.6kph

Auto 350Z @ 7,000rpm:
- 1st gear = 68kph
- 2nd gear = 107kph
- 3rd gear = 165kph
- 4th gear = 243kph
- 5th gear = 306kph
 

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Hi David.

Do you know if there's any difference in the drivetrain or powertrain of the two Z's that permits the extra 400RPM in the auto?

I, for one, wouldn't mind having access to another 400RPM as long as it doesn't do any damage to the engine, gearbox, or clutch / flywheel. Most of the FI guys run the stock driveline so its not a matter of strength in the latter items, so that leaves something internally in the engine....
 

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Do you know if there's any difference in the drivetrain or powertrain of the two Z's that permits the extra 400RPM in the auto

I was interested in that as well so I did some researchas well as asked Nissan. It looks like that there is no difference in the engine or drivetrain (or anything like that) between the autoand manual. Most (iif not all) engines are built with some 'marins'. ie. engine with a cut-out at 7000rpm is built to safely rev to (lets say) 7,300rpm.


Hence why the reason for the 400rpm earlier cut-out for the manual Zed ... it's a safety measure against an over-rev. On the other hand the automatic will (no matter what you try) not rev over the cut-out. It will not do so on the up-change, down-change or anything that you could try and do with it ... closest you can come to it is by reving it in neutral. On the other hand the maual can be relativerly easily over-reved. The extra 400rpm of 'safty' is probably most usefull on the up-changes, but to a degree helps on the down-changes as well.

So, in theory, if you never ever reved over 7000rpm (accidentaly or not), then you'd have the same durability as anautomatic Zed.
 
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