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nativepaul · 02.07.2007, 07:33 PM

Can anyone help me with gearing? I downloaded Brian G's speed calculator but I dont have a copy of excel to run it on.

The 8XL is 2084kv, with 12 cells at 1.1v per cell thats 27,500 rpm

I would like to get a top speed of 40 mph on the 4.58" diamiter buggy tyres.

The plastic spurs are only available in 44 and 46 tooth but theres pinions from 10-20, so theres alot of potential ratios

I will have to buy both the spur and the pinion anyway, so I have no bias to use any particular one.

	(#6)
nativepaul RC-Monster Aluminum Offline Posts: 522 Join Date: Jan 2007 Location: Sussex, England.	02.07.2007, 07:33 PM Can anyone help me with gearing? I downloaded Brian G's speed calculator but I dont have a copy of excel to run it on. The 8XL is 2084kv, with 12 cells at 1.1v per cell thats 27,500 rpm I would like to get a top speed of 40 mph on the 4.58" diamiter buggy tyres. The plastic spurs are only available in 44 and 46 tooth but theres pinions from 10-20, so theres alot of potential ratios I will have to buy both the spur and the pinion anyway, so I have no bias to use any particular one.