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Im adding 225/45/17 to my civic and on the tire calculator page it says that this compared to factory equipped tires is 1.93% too SLOW what effect will this have on my car besides my speedometer reading that percent slower than im actually going???

I saw another topic (is it my wheels or my civic?) where the guy said w/his rims he was getting horrible gas mileage but his car was 3.25% too FAST

if he was too fast and im coming up short whats the opposite effect of his poor gas mileage??? improved mileage????

also i was contemplating 215's which w/the calculator says its only .64% slower. am i better of w/these just since its closer to factory gear/ratio and gas mileage


thanks anyone for the help

 
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Yes, you are better off with the 215/45-17's and check your PM's.

 
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215/45/17, i think 215/40/17 will look better...

 
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yea i was thinkin that that 40's would look sweet but then i was concerned with losing comfortability. wont the ride be noticeable different?

 
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A little, it will still be stiff but not as bad with the 45 sidewall. You can always move up to 18's too, that will fill up the fender well nicely, and use a 215/40-18 tire.

 
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i would but i got 17 limix wheels

 
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To be quite honest with you I had 17" rims with Nitto NT-555 205/40-17 tires on my 7th gen EX coupe before I bought my 18-inchers.(they were from my 6th gen coupe) The tire is definately way too small of a sidewall with out a drop or in some cases even with a drop. It looks kinda odd actually. I think you will be happy with the 215/45-17's though, you will have an accurate speedometer reading, accurate milage reading, and a less of a chance of denting a rim on a pothole or bump with the extra sidewall. It won't look that bad.

 
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If you get bigger rims, your acceleration will go down from the added weight and rotational mass. The ride will also be bumpier.

 
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if you go with 205/40/17, the ride will be noticeably stiffer and bumpier. i guess it's a personal preference but i like stiffness as opposed to the smoother factory feel...

 
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well i think im gonna get the 215/45/17's just for the comfort... see how it is... that is soon as i get the loot.

I was checking out some on tires.com and found some yokohama avs es100's think i like them or the nitto nt neogen anybody heard anything bout these???

 
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205-40-17 imo is too thin if your not gonna drop it, 215-45-17 doesn't look all that bad if you leave it at stock height.

 
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Whatup People! Would anybody know if I did get the 215/40/18 rims & tires, how much of a drop should I do in order to complete the look?

 
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welcome to the forums. i don't think you can do much more than an inch drop on 18's without rubbing issues.