4.10s or 4.56s
09-26-2007, 01:33 PM
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4.10s or 4.56s I like to hear from guys who had tried 4.56s on an M6. I have a 99 TA with 11.9:1 compression, ported heads, and a Comp Cams 224/221 grind cam. Rev limiter is set at 6600 rpm. The car is strongest between 3500-6500 RPM.
The car was tuned, but even so it does not like to run below 1800 rpm. 6th gear is currently useless unless I am going 80+ MPH.
I no longer race this car and always run street tires. After 58000 miles and a major pinion seal leak, I will be rebuilding the rear end.
I know almost everyone goes wih 4:10s, which are perfect for the track, but would 4.56s make it even faster 0-60mph (assuming traction does not become an issue)? I ran the numbers and it looks like 4.10s would give me 2100 rpm at 80 and 4.56s would be 2400 rpm.
Inquiry minds want to know.
The car was tuned, but even so it does not like to run below 1800 rpm. 6th gear is currently useless unless I am going 80+ MPH.
I no longer race this car and always run street tires. After 58000 miles and a major pinion seal leak, I will be rebuilding the rear end.
I know almost everyone goes wih 4:10s, which are perfect for the track, but would 4.56s make it even faster 0-60mph (assuming traction does not become an issue)? I ran the numbers and it looks like 4.10s would give me 2100 rpm at 80 and 4.56s would be 2400 rpm.
Inquiry minds want to know.
