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jonszr1 · 08-07-2008

i agree with polo1 . having 2 zr1 one with392s andthe other 410s i think his idea of 373s is the best of both worlds . with 3.42s the car seems to lug in 6th gear @70-75. it doesnt get to 2000 rpms till87mph my 392 car hits 2 k at 77mph. the 392 car gets within 1 mpg of a 342 gear for me. i think that with the 3.73 gear gas milage might actually get alittle better than with the 342 gear jmho

08-07-2008	#3
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,406	Re: 4:10 gears verses 3:45's i agree with polo1 . having 2 zr1 one with392s andthe other 410s i think his idea of 373s is the best of both worlds . with 3.42s the car seems to lug in 6th gear @70-75. it doesnt get to 2000 rpms till87mph my 392 car hits 2 k at 77mph. the 392 car gets within 1 mpg of a 342 gear for me. i think that with the 3.73 gear gas milage might actually get alittle better than with the 342 gear jmho