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View Full Version : Acceleration difference between 3.91 and 4.30

Whizbang
02-13-2009, 12:35 AM
im just curious what the 0-60 difference would really be between the 3.91 and a 4.30 (say in a convertible with a manual transmission). I can figure calculations on this and that , but does anyone have any more real numbers?

probably could have had this in the transmission section...
drewski86
02-13-2009, 09:02 AM
In my first gen I ran 9.70 in the 1/8 mile with 3.9 and open diff. I ran 9.16 with 4.3 and a torsen. I think I gained 4-5 mph as well.
Whizbang
02-13-2009, 11:37 AM
impressive difference for a simple modification. FB is lighter than the vert by quite a bit, but still.
Flooder
02-13-2009, 01:51 PM
I noticed a difference from my GXL with the 4.10 and my GTUs with the 4.30. It's not HUGE, but its noticeable.
Rotary#10
02-15-2009, 01:53 AM
I noticed a difference from my GXL with the 4.10 and my GTUs with the 4.30. It's not HUGE, but its noticeable.

i'd agree with owner too
its noticeable in first gear compared to my old fc which had a 4.10 and my current 3.90.