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> sportomatic, Gear ratios
bernbomb914
post Mar 29 2006, 04:48 PM
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Took the Sport-o-matic trans out of a 77 911 apart and the gear ratios are
C 1st
HB 2nd
R 3rd
Y 4th

Just in case you wanted to know. They look brand new because of the automatic clutch. I think I will use the HB in my trans flipped is there another ratio that would help also?

Bernie (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
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Aaron Cox
post Mar 30 2006, 01:16 AM
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bernie, id like the C if its cheap enuff...

been hunting for a 905 sporto for a while
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alpha434
post Mar 30 2006, 01:19 AM
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Was it a 905? I would like the automatic clutch assembly to fiddle with... and maybe the case.
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bernbomb914
post Mar 30 2006, 09:29 AM
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I did not get the clutch assy or bell housing but I have the case.
Aaron is the C gear set a longer 1st?
I was told it came from 77 911 is that a 905?
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bondo
post Mar 30 2006, 10:20 AM
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What's the R&P ratio?
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Aaron Cox
post Mar 30 2006, 01:06 PM
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if its from a 77, i want to say that its a 925......... (915 based (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) )

but yes. a C is a reallllly tall first - lemme know if you want to part with it
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bernbomb914
post Mar 30 2006, 06:02 PM
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the ring and pinion is 7/27 ratio

Bernie
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