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Old 03-16-2014, 01:50 PM   #742 (permalink)
wstar
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Join Date: Mar 2009
Location: Houston, TX
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Drives: too slow
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Quote:
Originally Posted by SPOHN View Post
But when and where would you need 6th. Isn't that like over 160? Super long straight away.
I skipped over 1st gear in my graphs, so those peaks are gears 2-6 (the very end of the whole line is the redline in 6th). So, if drop down to 4.083 rear end, my 5->6 upshift will be at 137mph (probably more like 134, because I tend to short-shift a bit by default unless I'm really pushing it). I don't think I'll hit 6th at MSR-Houston with that ratio, but I probably will on TWS-CW and COTA under this setup, given the speed help from the lower gearing earlier in the straight. I almost wish I could go even lower and get to that very short 5->6 shift even more often. It seems there are, in fact, gear sets for 4.364 and 4.636, although I'm not 100% sure they're compatible on our 6MT-R200V rear end. Might be interesting to add that to my data as well...
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