Just curious of anyone knows what the RPM is when the car hits the ECU speed limit.

 

Source: Road & Track Jan 2007 for Infiniti G35 6MT S
Gear/Ratio/Overall/(Rpm) Mph
1st/3.79/13.99/(7800) 42
2nd/2.32/8.56/(7800) 69
3rd/1.62/5.98/(7800) 98
4th/1.27/4.69/(7800) 125
5th/1.00/3.69/(7600) 155* *Electronically limited
6th/0.79/2.92/(6000) 155*
Final drive ratio 3.69:1
Engine rpm @ 60 mph in top gear 2400 rpm

 

Do you have similar data for the 5 sp auto?

 

I could have sworn i saw a post here telling that the 5spd auto topped out at 135? Anyone confirm this? I have not had good enough weather to check myself?

 

1st Gear ....... 42 @ 7,500 RPM
2nd Gear ...... 69
3rd Gear ...... 106
4th Gear ...... 162
5th Gear....... 193

60 mph @ 2,300 rpm
80 mph @ 3,100 rpm

 

Nice ... the auto can hit 190+ in 5th gear

 

Are you crazy??? It can't hit 190 MPH in 5th.............it can hit 193 MPH!!!

 

With limiter off, downhill, tailwind and being towed by an F430 or similiar.

 

That's an amazing first gear for an auto, especially coupled with that final drive.

Previous rides (a v8 auto mustang comes to mind) had a first gear ratio of 2.45:1 and was only a 4 speed a/t. (3.27 f/drive)

No wonder these rides get out of the hole quickly and yield excellent 0-60 times....

 

Here is a link to calculate speed/rpm. The site does say it is not 100% accurate. Sorry if it has been posted before.

http://www.car-videos.com/tools/speedrpm.asp

 

According to the link, you can hit 69.5 MPH in 2nd gear at redline (obviously in optimum conditions), Has anyone tried to wind out 2nd gear, can you actually hit 60MPH in real world acceleration?

 

Maybe I should re-phrase my question:

Say I floored my 5AT on the highway until it hits the ECU speed governor. What will my RPM be at?

Of course, I'm not saying go out and do it ... but if you already have, please share.

 

in my 07 sedan i hit 60 in 2nd. and i chirp all the way to 3rd!~