[Andy]

There have been a few comments about the gear box on the V6.

I also heard the 7 speed auto thats in the V6 is also in the Nissan 350z

 

[Andy]

Just found this:
http://wenku.baidu.com/view/11c9a77...XbQKJ510ErUV3RiNoCAAAA/HUPCA==&bcsi_scan_filename=11c9a7707fd5360cba1adb6c.html

Haven't posted before so I hope that link works
It's about the development of the Jatco JR711e which I'm pretty sure is what installed in the V6 Nav
It's all in there, shift maps, slippage contol the lot....
I'm struggling with it and I'm an engineer, but I can see why mine won't shift up until 30 and 38 mph now. I think that shift map would be fine for a petrol, but it could be refined for an engine with as much torque as the V9X. Going to haveto live with now I think. The control system for slippage also looks very involved....

As i said im sure this same gear box is in the new Nissan 370z sports car which is petrol.

Taken from Wikipedia about the 370z

Almost every piece and component of the 370Z has been redesigned from the previous model (350Z). It is powered by the VQ37VHR 3.7 L (230 cu in) DOHC V6 with Variable Valve and Lift Control and produces 332 bhp (248 kW; 337 PS). Power delivery to the rear wheels comes through a new 7-speed automatic transmission with paddle shifters or 6-speed manual transmission which features the world's first synchronized down shift rev-matching system, SynchroRev Match. The SynchroRev Match system is only available with the sports package. The differential offered with the Sport Package is indicated to be a viscous limited slip differential.