Just curious, would going up from the factory wheel (17") to a 20" affect my gas mileage? I may be paranoid but it seems like my mileage has gone down a bit since changing to the bigger (Heavier) size.
Gas Mileage Affected?
Just curious, would going up from the factory wheel (17") to a 20" affect my gas mileage? I may be paranoid but it seems like my mileage has gone down a bit since changing to the bigger (Heavier) size.
Brett (One of the true OG's, No really... ask anyone)
'15 Chevy SS
'16 K7 SXL SWP
www.facebook.com/brett.lowenthal1
R.I.P Leisa, You are never forgotten - 10/7/08
yes...heavier wheel means more rotational mass means decreased gas mileage...also means you are going to wear out brakes sooner...
Last edited by The Yousef; 04-16-2007 at 03:29 PM.
Val RIP
Originally Posted by Halfwit
Yeah I would expect it to. Heavier wheel and its circumfrence is bigger.
***Lotus Elise***
BlackWatchRacing/Sector111/Larini Exhausts/Difflow Diffusers/Classic Livery of Atlanta Paint/APR Performance
bigger diameter+heavier wheel=worse gas mileage
you selling the factories?
Well what kind of BS is that? lol.
And brakes are over rated so I dont need those...LOL
I was going to sell the factory wheels, But I am going to keep them I think due to god forbid I mess up a rim I have a back up set to roll on.
Brett (One of the true OG's, No really... ask anyone)
'15 Chevy SS
'16 K7 SXL SWP
www.facebook.com/brett.lowenthal1
R.I.P Leisa, You are never forgotten - 10/7/08
around town it definitely matters.... if you do a ton of highway driving like me you hardly notice it... once they are rotating then physics just does its stuff and i hardly notice a difference
72 Datsun 510 goon SR
83 Datsun Maxima RB
80 Toyota Cressida 4M
Corrected.
:boobies:
Basically all of this is true...... unless you have a diesel in which case having a larger wheel and tire (over all dimensions) will create a slight strain increase on the engine but will create a much lower operating RPM at a given speed and there for increase the over all fuel economy by a great deal in some cases... the reason I site Diesels directly is because they react alot more to a 300rpm difference then a gasoline motor in terms of fuel consumption.
:boobies:
damnit...proofreading ftl!
thanks...
Val RIP
Yousef hit the nail on the head!
bigger wheels will also throw your odometer off too.
not true....
If you compensate the tire size you can have accurate readings....
Time to go back to schoool!!
http://www.miata.net/garage/tirecalc.html
dam it and i stand here owned. thanks for the correction nittany.
tried to prop u but i have to wait 24 hours
That is correct, unfortunatly not very often does it work out to have the size tire they recommend on a car... its all about maintaining the proper circumfirence. however this only helps the speedo and odo... the gas mileage and hangling will be affected reguardless because of a change in the placement of weight... and the fact you just added a ton of unsprung weight.
:boobies:
^^^^ What they said basically. You always want to keep as close to the original outside diameter as you can. You go up a wheel size then you go down a series in tires.
hey bert, enter the before and after info in this calculator and post up the results... http://www.miata.net/garage/tirecalc.html
Posting Permissions
Reply With Quote
