Will I have more fuel economy if I use 16-17" rims and tires..?

[memnoch]

Besides sa gwapo looks on the car..does changing a stock 15" rims to a 16-17" rims and tires give me more fuel savings?

I'm just basing it on a guess na kapag mas malaking tao, mas malaki ang hakbang..so I'm not sure if the same principles also apllies in vehicles…

tinatantya ko lang na if 2 cars of the same weight and power with 2 different size of wheels go on the same pace, same distance to be travelled .the one with the bigger wheels covers more distance and more likely the one to arrive to point B from point A than the other while saving more on the fuel…

any thoughts regarding this?

[xagent_orangex]

Stay with the OEM size rubber. If you go bigger you increase the angular moment of inertia (AMI) of the tire/wheel assembly. AMI goes up with the square of the diameter.

Increasing the diameter of the wheel means your engine has to accelerate four bigger "flywheels" every time you pull away from a stop sign or light.

Depends also on your driving and routes, city vs. highway driving. You may have small FC on highway when using bigger wheels, but not that much savings vs. the price of your new rims and tires.

[RC-V]

analogy ko lang.

bigger wheels need more power. more power more fuel.

[lowslowbenz]

Here's a good read.

Effects of Upsized Wheels and Tires Tested - Tech Dept. - Car and Driver

[meledson]

The rims can be up sized, pero the overall outside diameter of the tire is the same.

But typically with bigger rims, the wider the tires. wider = more traction. additional fuel consumption.

bigger rims = heavier. racing rims are lighter than standard rims of the same size.

[memnoch]

Thanks guys sa lahat ng information..I guess I have more idea na regarding this..

Most of the display na new gen vios kase na nakita ko sa dealers showroom and even dun sa autocar show sa MOA..specially the 1.3L E variant which has 85HP and 122Nm torque have bigger wheels than those displayed on the 1.5LG variant nila which have more power and more torque..naconfused lang ako..kase I thought the idea was to have bigger wheels on the E variant to compensate with the less HP and torque than its 1.5L counterpart..but then maybe, pampaganda na lang nila yung bigger wheels on the E variant to up their sales..

[dr. d]

Thanks guys sa lahat ng information..I guess I have more idea na regarding this..

Most of the display na new gen vios kase na nakita ko sa dealers showroom and even dun sa autocar show sa MOA..specially the 1.3L E variant which has 85HP and 122Nm torque have bigger wheels than those displayed on the 1.5LG variant nila which have more power and more torque..naconfused lang ako..kase I thought the idea was to have bigger wheels on the E variant to compensate with the less HP and torque than its 1.5L counterpart..but then maybe, pampaganda na lang nila yung bigger wheels on the E variant to up their sales..

let us not confuse tire size and rim size.
the objective is to keep the outer circumference of the tire, within factory spec. thus, when the rim size increases, the bigger tire's aspect ratio changes to keep the tire diameter and circumference "unchanged".
so, in answer to your question, the answer is "minimal", in daily driving.
besides, a bigger diameter tire is in danger of rubbing against the car's metal during extreme turns and bumps.. not to mention getting the odometer and speedo "out of whack".
consult the tire charts to give you an idea of how to manipulate these figures..

so why do car aficionadoes replace their rims with bigger ones? mainly because they feel it "makes their cars look better". and unless you make your living racing cars in indiana, the handling differences of larger rims versus smaller rims is not really significant..

personally, the taller the height of the air bubble, the more comfortable my ride is.

[Manilablock]

Compare mo na lang ung BMX bike sa Racing bikes, isa lang lang source ng power nyan un nagpepedal na tao. Pansinin mo na sa mga karera puro racing bikes lang ang ginagamit, at ung gulong ang kitid, kasi nga less contact sa road less resistance. Pero since less resistance ka dapat ingat sa high speed kasi longer braking distance.

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[glenn manikis]

my OEM van tire size is only 195 75 r16...

i put 245 70 r16...

side by side comparing the two.. there is at least 2.5-3 inch difference in height and 2 inches in width..

when it comes to FC... no noticeable difference... definitely hindi lumakas....

what i just observe is mas mabagal ang speedometer ko sa actual speed...

there was a time i was travelling along commonwealth my friend who was seated at the passenger side saw a honda civic's speedometer is more or less 60kph but mines is only a little above 50kph.. 51-52kph

kaya pag nasa commonwealth ako and driving our van i never go over 50kph...

and the usual route ko like for ex. is 25kms per day naging 21kms. nalang...

[Manilablock]

my OEM van tire size is only 195 75 r16...

i put 245 70 r16...

side by side comparing the two.. there is at least 2.5-3 inch difference in height and 2 inches in width..

when it comes to FC... no noticeable difference... definitely hindi lumakas....

what i just observe is mas mabagal ang speedometer ko sa actual speed...

there was a time i was travelling along commonwealth my friend who was seated at the passenger side saw a honda civic's speedometer is more or less 60kph but mines is only a little above 50kph.. 51-52kph

kaya pag nasa commonwealth ako and driving our van i never go over 50kph...

and the usual route ko like for ex. is 25kms per day naging 21kms. nalang...

So pag ginamit mo ung formula ng liter of gas per kilometer mali na, kasi ung kilometer mo hindi accurate.

Kung ibebenta mo un ride mo mas maganda pala kung nung ginagamit mo e malaki ang tyre na nakakabit kasi mababa ung ma register na milage.

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[al shaheen]

So pag ginamit mo ung formula ng liter of gas per kilometer mali na, kasi ung kilometer mo hindi accurate.

Kung ibebenta mo un ride mo mas maganda pala kung nung ginagamit mo e malaki ang tyre na nakakabit kasi mababa ung ma register na milage.

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Oo nga ano, para mas mababa milage pagbenta.

[jmpet626]

sa Jazz ko 16's at 195/55 series na tyres. May 2 bike rack sa roof and getting only 11km per liter kahit highway driving.

[ghosthunter]

Besides sa gwapo looks on the car..does changing a stock 15" rims to a 16-17" rims and tires give me more fuel savings?

I'm just basing it on a guess na kapag mas malaking tao, mas malaki ang hakbang..so I'm not sure if the same principles also apllies in vehicles…

tinatantya ko lang na if 2 cars of the same weight and power with 2 different size of wheels go on the same pace, same distance to be travelled .the one with the bigger wheels covers more distance and more likely the one to arrive to point B from point A than the other while saving more on the fuel…

any thoughts regarding this?

Bigger wheels with the same tire outside diameter - there will be some lost fuel economy due to HEAVIER wheel weight especially with stop-go driving situations. If highway driving conditions (minimal stop-go), fuel economy should not be affected much.

Bigger wheels with bigger tire outside diameter- there will be some lost fuel economy due to HEAVIER wheel weight and due to increased rolling resistance. A bigger outside diameter would act like having a higher gear when you don't need it. It would be more evident especially with stop-go driving situations. If highway driving conditions (minimal stop-go), fuel economy should not be affected much.

[jaypee10]

mas matakaw sa gas yan..kasi hindi basta maka ikot ung gulong mo..kumpara sa stock wheel..

[Noel Salisipan]

IMHO, very negligible yung difference nyan (16 to 17" rim diameter).
Medyo may epekto nga sa arangkada pero mas gumanda ang momentum na pwedeng mapakinabangan sa coasting. Bottomline almost even pa rin.

Sa comparo, size 15" vs 19" diameter rim para magkaroon ng significant difference sa FC.

Experience ko sa 17" vs 19" rim diameter with 5-kg weight in difference each, FC is 10.25kpl vs 10.36kpl. This favor the 19"rim. Pero para sa akin may nagbago lang sa driving habit ko or nabawasan yung idle time nung car kaya mas gumanda yung ang FC ng 19" rim. (This was base on one year of used to each set of rim.)

[Noel Salisipan]

let us not confuse tire size and rim size.)
the objective is to keep the outer circumference of the tire, within factory spec. thus, when the rim size increases, the bigger tire's aspect ratio changes to keep the tire diameter and circumference "unchanged".
so, in answer to your question, the answer is "minimal", in daily driving.
besides, a bigger diameter tire is in danger of rubbing against the car's metal during extreme turns and bumps.. not to mention getting the odometer and speedo "out of whack".
consult the tire charts to give you an idea of how to manipulate these figures..

so why do car aficionadoes replace their rims with bigger ones? mainly because they feel it "makes their cars look better". and unless you make your living racing cars in indiana, the handling differences of larger rims versus smaller rims is not really significant..

personally, the taller the height of the air bubble, the more comfortable my ride is.

Advantage yung braking distance, mas lumiit. Kaya mas may laban ka incase of emergency.

[Christian Gañac]

Basta okay lang magpalit ng rim/wheel size as long yung outer circumference ng goma mo ay pareho sa stock. IMHO, kung mag papalit ka ng bigger rims/wheels, yung magaan ang dapat ipalit mo. Sabi nga ng iba, the heavier the wheel-tire combo, the more strain it delivers to the drivetrain. SO FC is affected more or less specially on city stop and go traffic.

[dr. d]

Advantage yung braking distance, mas lumiit. Kaya mas may laban ka incase of emergency.

i can't imagine how, as bigger tires are generally heavier and have more kinetic energy and would require more braking force to stop...
but i was never excellent at physics, so i could be wrong..
help, anyone?

[niky]

Braking distance will only go down if the tires are stickier. You can have low-profile, wide tires... but if they're Dueler HTs, no way in hell are they gonna be better under braking.

I recall a few years ago in COTY, one of the best braking performances we saw was from a Corolla on stock "balloon" tires.

Rim size has little effect on fuel economy. Larger diameter aftermarket rims are often lighter than stock rims (as long as we're talking a mere +1 or +2.) Weight has a definite effect in stop-and-go. On the highway, sometimes a taller tire is beneficial, as it gives you a longer final drive, as long as the tire is still the same width and the weight gain is not big.

[jhnkvn]

For anybody worried about fuel consumption in going for a larger tire..

(1) You're not doing everyday highway runs right?
(2) I'd worry more about improving your driving habits..
(3) The cons of having a larger rims is offset by the benefits of a larger ego so okay lang yan.