Help on calculating gear ratio's

smallblock450sl · 02-26-2009, 06:21 PM

Before I sell (what I thought) was high speed gears to Bryan, I want to verify the #'s. The ring gear has 67 teeth, the counter gear has 22 teeth. Now I was always told to divide the ring number by the counter number. That would make this set 3:1! Just can't be right. The lowest I've heard of is 6:1. Any help would be great. I'm not going to sell a gear set that isn'y right. Thanks Dave

spriddle · 02-26-2009, 06:27 PM

That sounds right. You can check here:

http://www.csgnetwork.com/rnggrpinioncalc.html

smallblock450sl · 02-26-2009, 06:32 PM

Thanks Spriddle! Seems like a really low (high speed) ratio. Would probably need a tourque spring to help with "giddy up"! Dave

DOOmsman · 02-26-2009, 06:42 PM

Or a big block

BigBlockMan · 02-26-2009, 08:03 PM

The 6:1 and 8:1 are final ratios figuring all 4 or 5 gears in the trans 6:1 is the lowest ratio made

bryguy39 · 02-26-2009, 08:03 PM

so whats the scoop on the gears?

thanks,bryan

biohazard1965 · 11-15-2010, 02:18 PM

I got a question. I have 2 different rear ends. Both out of EZ Go Workhorse 1200's. When I rotate the brake hub, it will rotate 1 complete turn to the clutch shafts 13 rotations so its 13/1 ratio. The other rear end is 7/1 ratio. Of these 2 rear ends, which one will give me more top end? 13/1 or 7/1?

Mike Mac · 11-15-2010, 10:58 PM

Bio, I say the 7 to 1, for speed.
And Block, I'm gonna guess its a 2 to 1 ratio from the secondary clutch to the primary clutch with the motor at high revs. Make sense?

02-26-2009, 06:21 PM	#1
smallblock450sl Sometime's............ Join Date: Oct 2007 Location: Tacoma Washington Posts: 11,874	Help on calculating gear ratio's Before I sell (what I thought) was high speed gears to Bryan, I want to verify the #'s. The ring gear has 67 teeth, the counter gear has 22 teeth. Now I was always told to divide the ring number by the counter number. That would make this set 3:1! Just can't be right. The lowest I've heard of is 6:1. Any help would be great. I'm not going to sell a gear set that isn'y right. Thanks Dave

02-26-2009, 06:27 PM	#2
spriddle Admin Join Date: Dec 2006 Location: TN Posts: 101,858	Re: Help on calculating gear ratio's That sounds right. You can check here: http://www.csgnetwork.com/rnggrpinioncalc.html

02-26-2009, 06:32 PM	#3
smallblock450sl Sometime's............ Join Date: Oct 2007 Location: Tacoma Washington Posts: 11,874	Re: Help on calculating gear ratio's Thanks Spriddle! Seems like a really low (high speed) ratio. Would probably need a tourque spring to help with "giddy up"! Dave

02-26-2009, 06:42 PM	#4
DOOmsman Gone Wild Join Date: Jul 2008 Location: Reddick IL Posts: 11,220	Re: Help on calculating gear ratio's Or a big block

02-26-2009, 08:03 PM	#5
BigBlockMan Gone Wild Join Date: Feb 2007 Location: Southwest Georgia Posts: 1,469	Re: Help on calculating gear ratio's The 6:1 and 8:1 are final ratios figuring all 4 or 5 gears in the trans 6:1 is the lowest ratio made

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02-26-2009, 08:03 PM	#6
bryguy39 Gone Wild Join Date: Nov 2008 Posts: 370	Re: Help on calculating gear ratio's so whats the scoop on the gears? thanks,bryan
bryguy39 Gone Wild Join Date: Nov 2008 Posts: 370

11-15-2010, 02:18 PM	#7
biohazard1965 Not Yet Wild Join Date: Nov 2010 Posts: 4	Re: Help on calculating gear ratio's I got a question. I have 2 different rear ends. Both out of EZ Go Workhorse 1200's. When I rotate the brake hub, it will rotate 1 complete turn to the clutch shafts 13 rotations so its 13/1 ratio. The other rear end is 7/1 ratio. Of these 2 rear ends, which one will give me more top end? 13/1 or 7/1?
biohazard1965 Not Yet Wild Join Date: Nov 2010 Posts: 4

11-15-2010, 10:58 PM	#8
Mike Mac G8 Specialist Join Date: Jun 2009 Location: Phoenix Posts: 7,799	Re: Help on calculating gear ratio's Bio, I say the 7 to 1, for speed. And Block, I'm gonna guess its a 2 to 1 ratio from the secondary clutch to the primary clutch with the motor at high revs. Make sense?

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