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willy
 Post subject: Drop gears
PostPosted: Wed Nov 01, 2006 8:49 am 
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Can someone explain the different ratios given for drop gears... and why they differ.

Thanks
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cush
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PostPosted: Wed Nov 01, 2006 9:19 am 
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why they differ?

:?

they differ because people made them differ...ent...

with more or less teeth


as for ratios... do you want to know what ratios are avaliable?

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cush
 Post subject:
PostPosted: Wed Nov 01, 2006 9:50 am 
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you might want to check these threads tho... there's a bit of info in there..

http://www.ausmini.com/forums/viewtopic.php?t=11024

http://www.ausmini.com/forums/viewtopic.php?t=4796

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britishvita
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PostPosted: Wed Nov 01, 2006 2:07 pm 
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do a search willy.... :lol: :lol: :lol: :lol:

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willy
 Post subject:
PostPosted: Wed Nov 01, 2006 2:09 pm 
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Ok but why would one use drop gears with a different ratio.......
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Lillee
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PostPosted: Wed Nov 01, 2006 2:29 pm 
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My question is Why??

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willy
 Post subject:
PostPosted: Wed Nov 01, 2006 2:34 pm 
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That's my question too :?
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Lillee
 Post subject:
PostPosted: Wed Nov 01, 2006 3:28 pm 
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No Why bother with drop gears? are you racing this thing? is it being rebuilt every 3rd meet?

Drop gears, i hear, wear out very quickly and that aint great for a roadie...

Are you planning to make 200+hp in your car? if not don't bother. Ask Grant who's run a std gearbox on his supercharged and now turbocharged beast for the past 2 years+...

"Gearboxes don't break themselves, people break gearboxes" Guess who I just quoted :wink:

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willy
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PostPosted: Wed Nov 01, 2006 3:31 pm 
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You have drop gears too, Chong :roll:
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Lillee
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PostPosted: Wed Nov 01, 2006 3:59 pm 
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Straight cut teeth or Dog Box or idler gears? wtf are drop gears

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britishvita
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PostPosted: Wed Nov 01, 2006 4:00 pm 
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I think we are getting a tad confused here, do you mean standard drop gears, straight cut drop gears or dog gears (I think)...

I think the reason for having the different drop gears is so that you can change the gear ratio easier (as in changing from 1:1 drop gears to 1:whatver else is available), if they are straight cut their might be less power loss from the transmission - but its probably cheaper and an easier option just removing weight from the car for the "extra" power you'd gain.

The good Dr can probably give you a much better explaination than this though.

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willy
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PostPosted: Wed Nov 01, 2006 4:04 pm 
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"Drop gears" as they are commonly referred to as idler gears in almost all instances.
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Lillee
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PostPosted: Wed Nov 01, 2006 4:07 pm 
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I think the correct name is Transfer Gears

In which case the reason for smaller or larger gears is to change final drive ratio, probably so you don't have to pull the diff off to do it?

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britishvita
 Post subject:
PostPosted: Wed Nov 01, 2006 4:08 pm 
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will-i-am, have a looksy:

http://www.minimania.com/web/SCatagory/GEARBOXES/DisplayType/Calver's%20Corner/DisplayID/878/ArticleV.cfm

some light reading for you

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Last edited by britishvita on Wed Nov 01, 2006 4:11 pm, edited 1 time in total.

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willy
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PostPosted: Wed Nov 01, 2006 4:11 pm 
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Wow thanks Luke! 8)

Keeping me busy at work :lol:
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