 Increasing Gas Mileage With Taller Tires? |
 Oct 23, 2008 - 12:54 PM
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Enthusiast Joined Oct 23, '07 From Dallas, TX Currently Offline Reputation: 0 (0%)  |
One of the few things that I dislike about my '99 Celica Convertible is that the gas mileage isn't as good as it could be. The 1997-2001 Camry, which had the same engine, got 3 mpg better on the highway with a 5-speed than my Celica does with a 5-speed, and the Camry weighed about 300 lbs more! I can only attribute this to the high revs of my Celica's 5th gear. So, my question is, can I achieve better fuel economy with a larger diameter wheel/tire combination? I know it would throw my speedometer off a bit, but to save fuel, it would be worth it to me. On that same note, what would would the tallest tire that I could put on a 16" rim and not suffer from any fender rubbing? What about a 17" rim? Thanks for your help!
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Oct 24, 2008 - 8:28 AM
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 Enthusiast  Joined May 22, '03 From NOVA Currently Offline Reputation: 16 (100%) |
QUOTE (dgbldr @ Oct 23, 2008 - 8:31 PM)  QUOTE (playr158 @ Oct 23, 2008 - 7:35 PM) wheels are not considered unsprung weight....you consider them rotational weight. unsprung weight would only be the spring around your shock at a stand still Incorrect. Read this: http://en.wikipedia.org/wiki/Unsprung_weight glad you linked the article i quoted  read entire threads b4 clicking reply 
This post has been edited by playr158: Oct 24, 2008 - 8:28 AM |
Posts in this topic
joyworks Increasing Gas Mileage With Taller Tires? Oct 23, 2008 - 12:54 PM
playr158 you'd probably negate any savings by adding th... Oct 23, 2008 - 1:06 PM samir0189 Ill have to agree with playr, tune it up. The 5sfe... Oct 23, 2008 - 1:27 PM
joyworks Actually, I already do all of those things. I am ... Oct 23, 2008 - 1:39 PM D-Man QUOTE (joyworks @ Oct 23, 2008 - 1:3... Oct 23, 2008 - 4:32 PM samir0189 I'm not a physics major, but I'm thinking ... Oct 23, 2008 - 2:06 PM joyworks You really think that lifting the car a half inch ... Oct 23, 2008 - 2:42 PM dgbldr No, no and no.
1. No, you can't attribute the... Oct 23, 2008 - 3:59 PM DEATH QUOTE (dgbldr @ Oct 23, 2008 - 3:59 ... Oct 23, 2008 - 4:41 PM playr158 QUOTE (dgbldr @ Oct 23, 2008 - 4:59 ... Oct 23, 2008 - 4:56 PM samir0189 I really don't think that the rpm difference i... Oct 23, 2008 - 5:23 PM GriffGirl Larger tires/increased height actually can decreas... Oct 23, 2008 - 5:39 PM RickJamesBish It always pisses me off when my car is rated 27/34... Oct 23, 2008 - 5:57 PM playr158 QUOTE (samir0189 @ Oct 23, 2008 - 6... Oct 23, 2008 - 6:35 PM dgbldr QUOTE (playr158 @ Oct 23, 2008 - 7:3... Oct 23, 2008 - 7:31 PM samir0189 Lol. i did say i was not a physics major. I unders... Oct 23, 2008 - 6:48 PM playr158 well you are correct still i suppose.
"In a... Oct 23, 2008 - 7:18 PM samir0189 righttttt. So then, in theory the added weight of ... Oct 23, 2008 - 7:32 PM joyworks Thank you all for your comments so far. But, let... Oct 23, 2008 - 8:43 PM blu94gt QUOTE (joyworks @ Oct 23, 2008 - 8:4... Oct 23, 2008 - 10:24 PM D-Man QUOTE (RickJamesBish @ Oct 23, 2008 - 5... Oct 24, 2008 - 8:27 AM RickJamesBish QUOTE (D-Man @ Oct 24, 2008 - 9... Oct 25, 2008 - 11:27 AM GriffGirl QUOTE (RickJamesBish @ Oct 25, 2008 - 9... Oct 28, 2008 - 3:21 PM 97GTinKC Wheel size alone can not be used as an indicator o... Oct 24, 2008 - 5:22 PM joyworks Well said 97GTinKC, those are my feelings on the s... Oct 24, 2008 - 6:07 PM GriffGirl QUOTE (joyworks @ Oct 24, 2008 - 4:0... Oct 28, 2008 - 3:24 PM GriffGirl But it makes us tree hugging left wing liberals ou... Oct 24, 2008 - 5:32 PM 97GTinKC I'm going with 215/50-16 next time in place o... Oct 28, 2008 - 1:11 AM alaNi touche what octane do you guys use? Oct 28, 2008 - 1:32 AM playr158 QUOTE (97GTinKC @ Oct 24, 2008 - 6:2... Oct 28, 2008 - 6:10 AM RickJamesBish Well, that's mad annoying...I'll just have... Oct 28, 2008 - 3:24 PM |
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