Optimal 1st gear ratio? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jim_PA · 05-19-2010, 03:15 PM

That would put me at 220MPH in 6th gear at 6500 RPM. Perfect!

I was hoping I could get away with a deeper first gear, and no gear change, but things never seem to work out that way!

It looks to me like these are my choices....

3.73's and GTO (if not planning on re-gearing)

Or 4.56 and F-body (the numbers definitely look better, I guess I just need to stop whining about spending money

)

Then again, F-body T56's seem to be much less expensive than the GTO version, probably due to age and production numbers... so the end cost might not be all that much more.

05-19-2010, 03:15 PM	#11
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: Optimal 1st gear ratio? That would put me at 220MPH in 6th gear at 6500 RPM. Perfect! I was hoping I could get away with a deeper first gear, and no gear change, but things never seem to work out that way! It looks to me like these are my choices.... 3.73's and GTO (if not planning on re-gearing) Or 4.56 and F-body (the numbers definitely look better, I guess I just need to stop whining about spending money ) Then again, F-body T56's seem to be much less expensive than the GTO version, probably due to age and production numbers... so the end cost might not be all that much more. Last edited by Jim_PA; 05-19-2010 at 03:16 PM.



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