would 18s slow me down

[beeker82]

i might have a good deal going on some polished z06 18 inch wheels and tires,would these slow me down at all????? i have a 95 3.4 with an a4

[LD]

yes

[95fbirdkid]

technically yes, but you're not gonna be a speed deamon anyway so idk you'll notice a huge difference

[shenanigans]

Yes they will, I noticed a difference between a 245s and 235s on the different sets of wheels.

Big difference between my 275s and 17s and my any tires on 16s...

[RicE-ter]

Yes because the slight weight and size difference would slow down the wheels from spinning a lil but you can always change out the clutch, tranny, and/or flywheel and also add

MORE POWER!!!!!!!!!!!!!! [img]graemlins/rock.gif[/img] and take advantage of the longer push and increased tire surface area touching the ground

[shenanigans]

problem is most people are generally brok after buying 18"s [img]smile.gif[/img]

[beeker82]

ok,would 17s be as bad??? right now i have the salad shooters with 245/50s i think,ill just go with 245/45/17s,would this be a huge difference?

[silverV6firebird]

I have 18s. They are more expensive. The rubber for them is going to be more expensive. I can't tell the difference in my speed, but my car is just for looks anyways.

[Loochy88]

Originally posted by beeker82:
ok,would 17s be as bad??? right now i have the salad shooters with 245/50s i think,ill just go with 245/45/17s,would this be a huge difference?

i sure didnt notice any difference when i went to my 245/45/17's

also, this is headed to the suspension forum.

[Jerriko]

Originally posted by RicE-ter:
Yes because the slight weight and size difference would slow down the wheels from spinning a lil but you can always change out the clutch, tranny, and/or flywheel and also add

MORE POWER!!!!!!!!!!!!!! [img]graemlins/rock.gif[/img] and take advantage of the longer push and increased tire surface area touching the ground

Longer push? Increased tire surface area?
Unfortunately, that longer push requires more power to turn the wheel. Which is why they slow your car down. Secondly, the increased tire surface area is also cancelled since more power is required to turn the wheel. And of course, if you use low profile tires, both of those 'benefits' are cancelled off the bat.
:rolleyes:

[Shirl]

Honestly, I haven't noticed a difference. I went from 245/50/16's to 265/35/18's. The height was nearly the same and the overall ride actually feels better. Tire-wise, I went from Michelin Pilot Sports to BFG GForce Kd's so maybe that has something to with it too. The BFG's are awesome. I love em'. As some of the others mentioned, you could lighten up your car in other ways to make up the difference too. I'm installing an aftermarket hood soon..

[Jerriko]

Originally posted by Shirl:
Honestly, I haven't noticed a difference.

Do you have any times to back that up?

I went from 245/50/16's to 265/35/18's. The height was nearly the same and the overall ride actually feels better. Tire-wise, I went from Michelin Pilot Sports to BFG GForce Kd's so maybe that has something to with it too. The BFG's are awesome. I love em'. As some of the others mentioned, you could lighten up your car in other ways to make up the difference too. I'm installing an aftermarket hood soon..

Not to but heads here but weight reduction isn't the same as increasing/decreasing rotational mass. Weight involved with anything that rotates should be x10 when comparing it to normal weight reduction. So if a wheel weighs 5 lbs heavier than stock it would be more like 50 lbs PER wheel when considering rotational mass.

And yes, it will handle better. Increasing the size of the wheel (not tire) improves handling since there is less give.

[HAZ-Matt]

http://www.physics.uoguelph.ca/tutor...e.inertia.html

http://hyperphysics.phy-astr.gsu.edu/hbase/amom.html#am

[Shirl]

Do you have any times to back that up?

Nope. I'm talking street driving. If I want to go to the track, I have slicks for that.

Not to but heads here but weight reduction isn't the same as increasing/decreasing rotational mass.

True, but it helps if someone's worried about losing .050 on the street. [img]graemlins/rofl.gif[/img] The bottom line is if you match up the stock tire/wheel size with a lower profile/bigger wheel that is comparable, it ain't really gonna make a difference. And I'm saying, I personally, noticed NO difference. [img]smile.gif[/img]

[1DangerousV6]

taller side wall is said to give better traction during launch..but i dunno..this is what i noticed running 3 times NA (i forget mph)..same burnout..same stall/launch..

18" C5s w/ BFG drag radials 15.67
18" C5s w/ BFG drag radials 15.67
16" Weld pro star XPs with M/T ET Streets 15.68

..basically..i didnt see any difference..could make a difference once i hit the juice though..not sure