Q: What was the 998 Elf automatic final drive ratio?

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Q: What was the 998 Elf automatic final drive ratio?

Post  scooperman on Wed May 27, 2009 11:55 pm

Okay, that's the question. I looked at the differential parts breakdown in the Somerford Minis catalog, and they only show two available ratios for the automatics, 2.76:1 and 3.273:1. Did the 998 Elf have the 3.273 ratio?

thanks

John R.
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Re: Q: What was the 998 Elf automatic final drive ratio?

Post  Big_Al_Smith on Thu May 28, 2009 2:14 am

i'm afraid i have absolutely no idea, (sorry!) but hopefully somebody will? come on you clever peeps....
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Re: Q: What was the 998 Elf automatic final drive ratio?

Post  scooperman on Thu May 28, 2009 5:25 pm

Now that I think about it, I may have some magazine road test articles, and some Elf/Hornet sales brochures, at home. I will look tonight.

Al, perhaps that is something you could look into, set up a forum section to post some original BMC Elf/Hornet literature.

J.R.
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Re: Q: What was the 998 Elf automatic final drive ratio?

Post  TONYELF on Thu May 28, 2009 7:23 pm

According to my Haynes Manual The 998cc engines had a 3.765:1 ratio The automatics had a overall ratio of 3.76:1 ?
These figures throw a spanner in the works, so to speak!

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Re: Q: What was the 998 Elf automatic final drive ratio?

Post  scooperman on Fri May 29, 2009 4:13 pm

I also put the question on the MM forum and got a quick reply from Kevin G., "998 Mini automatics had a 3.27:1 final drive. However, as automatic drop gear ratio was 1.15:1 (not 1:1) the actual overall ratio in 4th gear was 3.76:1."

So the manual and automatic overall ratios are the same.
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