HomeProjectsResumeContact MeSolargram
> Welcome > Projects > High Performance Lawn Mower > Improved Gear Ratio - $22 - (no mowing test yet)
Playa Computer
Invisible Gold
Honda Insight
Pedal Generator
High Performance Lawn Mower
Photography Portfolio
Green Home
In Car GPS Systems
Spy Van
Shake Flashlights
Online Tarot Card Readings
Tea House
Desktop Backgrounds
Insight Battery

Improved Gear Ratio - $22 - (no mowing test yet)

click to expand
click to expand
OK...so this is fix that I've been waiting for. The drive pulley at the back of the mower is 11"...and I swapped it out for a smaller one of 6". This means that the top speed should be about 1.83x as fast.

But it's not that easy. First of all, I couldn't get the old pulley off. (and a replacement would've been $20 or more). SO, I just welded the smaller one to the side of the big one.

Second, I needed a smaller drive belt. This wasn't too hard to find...but getting the correct size was. It also involved designing a new belt path. There are several things you need to clear between the mower deck and the bottom of the "car". Regardless, after a few days of tickering and welding it's in and sort of tight.

For the test...Well, I haven't installed the mower deck yet - but it's all together AND it's really fast. (not fast enough to be scary - sort of like a slow go-cart.) I can hardly wait to mow the lawn.