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-   -   newb ?: lightweight rims = better gas mileage? (https://honda-tech.com/forums/wheel-tire-56/newb-lightweight-rims-%3D-better-gas-mileage-1755854/)

aznboysrfr 09-18-2006 02:58 PM

newb ?: lightweight rims = better gas mileage?
 
really newb question ... but I'm having this argument with somebody ... and I'm not so sure anymore ...

say if you had a really lightweight 15" rim ... ~9 pounds ... vs. a really heavy 15" rim ... say ~18 pounds ... everything else constant ...

the 9 pound rim would get better gas mileage, correct? ... the person I am arguing with claims that the heavier rim keeps its rotating inertia easier than the lightweight, so therefore, it would save gas ... but the lightweight takes less power to spin, correct?...

I already know that the lightweight would be better for handling, braking and acceleration ... but gas mileage too, right?

old man neri 09-19-2006 03:04 AM

Re: newb ?: lightweight rims = better gas mileage? (aznboysrfr)
 
In reality you won't have a difference.

But for this academic argument: The light weight rim would give you theoretically better mileage. This is because it would take less energy to accelerate to the desired speed. All that energy eventually goes to waste when you brake to a stop in the form of heat. Of course this is assume that the wheels have similar wieght distribution.

But like I said earlier, in reality you won't see any difference, many more important factors contribute to fuel consumption.

nsxtasy 09-19-2006 06:30 AM

Re: newb ?: lightweight rims = better gas mileage? (old man neri)
 
http://images.corvetteforum.com/imag...ies/iagree.gif

Will they give better gas mileage? Yes. Will the difference be significant enough to notice? No.

It's like asking if your car will get better gas mileage if you remove a 36-pound object from your car...

Earthworm Jim 09-19-2006 07:54 AM

Re: newb ?: lightweight rims = better gas mileage? (nsxtasy)
 
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy &raquo;</TD></TR><TR><TD CLASS="quote">Will they give better gas mileage? Yes. Will the difference be significant enough to notice? No.

It's like asking if your car will get better gas mileage if you remove a 36-pound object from your car...
</TD></TR></TABLE>

Very true, I gutted my car and I got better gas mileage all around. Only if it's a large weight difference would you notice. Try drafting people in traffic, that helps out a lot too https://honda-tech.com/forums/images...es/emsmile.gif https://honda-tech.com/forums/images/smilies/emthup.gif

old man neri 09-19-2006 03:31 PM

Re: newb ?: lightweight rims = better gas mileage? (Earthworm Jim)
 
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Earthworm Jim &raquo;</TD></TR><TR><TD CLASS="quote">
Try drafting people in traffic, that helps out a lot too https://honda-tech.com/forums/images...es/emsmile.gif https://honda-tech.com/forums/images/smilies/emthup.gif </TD></TR></TABLE>

That usually involves following a vehicle too closely and thus unsafe, I would not recommend this. The rise in your insurance rates after you rear-end someone will greatly offset any fuel savings.

There are numerous threads on how to save gas; full of good ideas.

Cheers.

Earthworm Jim 09-19-2006 03:50 PM

Re: newb ?: lightweight rims = better gas mileage? (old man neri)
 
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by old man neri &raquo;</TD></TR><TR><TD CLASS="quote">

That usually involves following a vehicle too closely and thus unsafe, I would not recommend this. The rise in your insurance rates after you rear-end someone will greatly offset any fuel savings.

There are numerous threads on how to save gas; full of good ideas.

Cheers.</TD></TR></TABLE>

Generally driving on California highways is unsafe as well https://honda-tech.com/forums/images...es/emdgust.gif No excuse for drafting though http://images.honda-tech.com/set1//smile/emcrook.gif

old man neri 09-19-2006 03:53 PM

Re: newb ?: lightweight rims = better gas mileage? (Earthworm Jim)
 
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Earthworm Jim &raquo;</TD></TR><TR><TD CLASS="quote">

Generally driving on California highways is unsafe as well https://honda-tech.com/forums/images...es/emdgust.gif No excuse for drafting though http://images.honda-tech.com/set1//smile/emcrook.gif </TD></TR></TABLE>

Don't worry, I know the feeling driving in Toronto and Montreal. Gets even more 'interesting' when there is snow on the ground.

Cheers.


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