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Final gear in 1/4 mile using 4.11 and stock SS wheels

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Old 09-19-2003, 12:06 AM
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Default Final gear in 1/4 mile using 4.11 and stock SS wheels

I have an M6 that pulls to 6300 RPM's. It makes peak HP at 6100 RPM's so I am thinking 6300-6400 RPM's shifts. I don't want to shift into 5th gear in the quarter. I will probable run Nitto 275/40/17 DR or 16 inch ET Streets. I heard 3.90's are available. What are the differences in performance? What do you guys thinks?
Old 09-19-2003, 04:58 PM
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Default Re: Final gear in 1/4 mile using 4.11 and stock SS wheels

I've never had to shift into fifth nor would I.
Old 09-19-2003, 07:18 PM
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Default Re: Final gear in 1/4 mile using 4.11 and stock SS wheels

4.11s will carry you to 119 with stock height tires at 6400 RPM in 4th. This would be equivalent to a ~116-117 trap speed (trap speed and actual speed are not the same.)

So, the question is, do you plan to go faster than that in the 1/4?
Old 09-20-2003, 03:25 AM
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Default Re: Final gear in 1/4 mile using 4.11 and stock SS wheels

Dang! Does anyone sell 3.90's
Old 09-20-2003, 04:48 AM
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Default Re: Final gear in 1/4 mile using 4.11 and stock SS wheels

for a 10 bolt? good luck man
Old 09-20-2003, 01:12 PM
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Default Re: Final gear in 1/4 mile using 4.11 and stock SS wheels

Sorry, 12 bolt.
Old 09-21-2003, 02:02 PM
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Default Re: Final gear in 1/4 mile using 4.11 and stock SS wheels

I believe Richmond makes them.
Old 09-21-2003, 07:37 PM
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Default Re: Final gear in 1/4 mile using 4.11 and stock SS wheels

My car crosses at about 107 which is about 5700 in 4th.




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