mrdaytona
Jun 13 2010, 07:38 PM
OK my automatic Formula drivin friends, just toyin with the idea of change. What are your actual RPMs for the 3:2? rear diff or the 3:40 at 60mph. Take your time, take a drive and see.
My glove box code is that a$$ kicken GU2, so my cruisin 2:73s run at about 1,400 RPMs at 60mph and is easily a daily driver and good for the ears. Dont want the RPMs too high with the Borla and high flow cat, sounds like I am on the Nascar Circuit with the RPMs up around 3,000, which is great for fun but not for a daily driver.
Thanks
Tyler
Jun 14 2010, 10:42 AM
With the original 3.42's mine ran 86mph @ 2000 rpm. Now with 3.73's it runs 80 mph @ 2000 rpm's.
Me Too
Jun 15 2010, 01:57 AM
Check out this website and just plug in your info:
http://www.f-body.org/gears/
mrdaytona
Jun 15 2010, 10:56 PM
Tyler, you have a stick? My automatic (did my beach run today) was at 2,000 rpms at 80mph and like 2100 at 85mph.
Me Too guy, that chart seems to be right on. Would be nice if the guy would have put MPH next to the numbers, I went brain dead for a few minutes lookin at that lol. Thanks
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