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2nd Generation
20" vs 22" wheels, and why?
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<blockquote data-quote="funair02" data-source="post: 11377165" data-attributes="member: 18404"><p>Well the 22s on your FACTORY SRT are engineered for the brakes, wheel angles, centerlines, springs, ball joints and their respectful locations...but still 22s will always be tougher to stop than a smaller wheel. Also if your tired of getting 6MPG them maybe you should get smaller wheels.</p><p>There is nothing in that articles that is untrue. Actually I am experimenting with smaller wheels now and seeing larger MPG gains and shorter braking distances.</p><p></p><p>Another thing - NASCAR uses 15in rims that are 12 inches wide. Also their tires are about 30 inches tall. That makes their sidewall a 75 series. They whip around Daytona and Talladega with 75 series tires. OMG!</p><p></p><p>so...</p><p></p><p>Think of it this way, take a 8in piece of string and stick a washer on the end, now spin it. It is pretty easy, force wise, to change the plane.</p><p></p><p>Now take a 14in piece of string, put a wahser on it, spin, and now try to change the plane. It is much more difficult.</p><p></p><p>Another way would be to hold a pedalstal fan while it is on high. Take one with a 10in diameter and another with a 20in diameter. I bet you you would drop the 20 trying to change its plane. The 10 would be easy.</p><p></p><p>Lastly if we take an 18in wheel and a 20in wheel, all things being the same, the 20in wheel has 20% more inertia than the 18. Just thought you'd like to see some concrete numbers.</p><p>18 in wheel -- Rim Inertia is: 0.323 kg-m2</p><p>20 in wheel -- Rim Ineriia is: 0.399 kg-m2 <---20% more.</p><p></p><p>Respectfully, it isn't very becoming of one's self calling Newton's Laws of Physics BS. And, the laws of physics are stuck in their ways</p><p></p><p>Trying to reinvent the wheel is ludichrist -- don't ya think <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>:rockon:</p><p></p><p></p><p>Check this out: <a href="http://hpwizard.com/rotational-inertia.html" target="_blank">The Effects of Rotational Inertia on Automotive Acceleration</a></p><p></p><p>Reminds me of my college days <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="funair02, post: 11377165, member: 18404"] Well the 22s on your FACTORY SRT are engineered for the brakes, wheel angles, centerlines, springs, ball joints and their respectful locations...but still 22s will always be tougher to stop than a smaller wheel. Also if your tired of getting 6MPG them maybe you should get smaller wheels. There is nothing in that articles that is untrue. Actually I am experimenting with smaller wheels now and seeing larger MPG gains and shorter braking distances. Another thing - NASCAR uses 15in rims that are 12 inches wide. Also their tires are about 30 inches tall. That makes their sidewall a 75 series. They whip around Daytona and Talladega with 75 series tires. OMG! so... Think of it this way, take a 8in piece of string and stick a washer on the end, now spin it. It is pretty easy, force wise, to change the plane. Now take a 14in piece of string, put a wahser on it, spin, and now try to change the plane. It is much more difficult. Another way would be to hold a pedalstal fan while it is on high. Take one with a 10in diameter and another with a 20in diameter. I bet you you would drop the 20 trying to change its plane. The 10 would be easy. Lastly if we take an 18in wheel and a 20in wheel, all things being the same, the 20in wheel has 20% more inertia than the 18. Just thought you'd like to see some concrete numbers. 18 in wheel -- Rim Inertia is: 0.323 kg-m2 20 in wheel -- Rim Ineriia is: 0.399 kg-m2 <---20% more. Respectfully, it isn't very becoming of one's self calling Newton's Laws of Physics BS. And, the laws of physics are stuck in their ways Trying to reinvent the wheel is ludichrist -- don't ya think :) :rockon: Check this out: [url=http://hpwizard.com/rotational-inertia.html]The Effects of Rotational Inertia on Automotive Acceleration[/url] Reminds me of my college days :) [/QUOTE]
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20" vs 22" wheels, and why?
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