How much will 17''s slow me down?

config · #1 08-01-2003, 01:00 PM

How much slower will my 1/4 or 0-60 times be with 17''s as opposed to stock 15''s?

CivicSiRacer · #2 08-01-2003, 05:33 PM

Well this was published in Grassroots Motorsports last year.

1lb of wheel weight is equal to about 8-10lbs static body weight. My 15x7" wheels and 205/50x15" Azenis weigh 34lbs whereas my old 17s (Konig Toxxins) with 205/40x17" Yokhama A520s weighed 45lbs each. That's 10lbs per corner for a total of 40lbs of wheel/tire weight. 40lbs * 8-10lbs = 320-400lbs of static body weight.

Do the math and you can see

http://members.tripod.com/fast_wheels/1320-ex.htm

Take my car for instance:
2500lbs w/my 15s = 15.15 second 1/4 mile
2540lbs w/my 17s = 15.36 and that doesn't include the change in gear your car will have with 17s. 205/40x17" is about .1-.2" larger in diameter.

http://members.tripod.com/fast_wheels/1320-ex.htm

loesch8102 · #3 08-01-2003, 06:39 PM

Thanks for the info CivicSiRacer!

CivicSiRacer · #4 08-01-2003, 09:01 PM

Quote:

Originally posted by loesch8102
Thanks for the info CivicSiRacer!

No problem

config · #5 08-01-2003, 11:30 PM

Thanks a lot, very helpful. But opinion-wise, i shoudlnt be worried about losing performance if i buy 17''s over my stock 15''s then right? It seems to be only .3-.5 seconds difference, and i think i can handle that.

loesch8102 · #6 08-02-2003, 12:05 AM

That's a pretty noticable difference though. I think you will hit yourself afterwords if you buy 28lb rims. A 19 or 20lb rim wouldn't be that bad though. Oh, just for shits and gigles I weighed my stock 14in steelies with the tires and they are 36lbs so if you can stay near that weight, you'll be good. It would suck to get beat by a stock Integra when your car looks so nice.

config · #7 08-02-2003, 03:34 AM

Does anyone know how much 5zigen corpse or Racing Hart Evo C5's are in 17''s?

If they weigh too much than i guess ill go with some rota grids.

But seriously, how come so many people get 17''s when it affects performance so much? I wouldnt think it would be bad enough to where you get beat by your car stock.

CivicSiRacer · #8 08-02-2003, 04:27 AM

Quote:

Originally posted by config
Thanks a lot, very helpful. But opinion-wise, i shoudlnt be worried about losing performance if i buy 17''s over my stock 15''s then right? It seems to be only .3-.5 seconds difference, and i think i can handle that.

You also forget that a 17" rim the weight is further out from the center of the hub which means it takes more energy. That calculator doesn't figure that in AND the diameter of the overall setup is larger which means it lengthens the gearing which also slows down the car.

config · #9 08-02-2003, 04:45 PM

Quote:

Originally posted by config
Does anyone know how much 5zigen corpse or Racing Hart Evo C5's are in 17''s?

Man.. i cannot find this annnywhere. THe links i found from google didnt seem to legit. ANyone?

94tegRS · #10 08-02-2003, 07:09 PM

what about konig tantrums? or how about ADR sokudo 8's

my friends car has 15" rims from a 2000 LS, my hatch has 17"sokudo 8's and his car is about a second faster,

so it would have to be about 1k pounds more, so about 25 pounds heavier at each corner, now I doubt they are that much heavier but I think im gonna put the 14's on the fron and then steal the 15's from the parts car for the rear and race him again.

loesch8102 · #11 08-02-2003, 09:13 PM

5zigen 5ZR Copse in 17" are 23.0lbs, (but this doesn't make any sense cause the 15's are supposedly 11lbs)? If your serious about these, I would call 5Zigen and see what they say.

Racing Hart Evo C5's are about 21lbs. Not sure cause the nearest size I could find the weight for was 18x8.5. They were 28lbs.

Konig Tantrum 17x7's are 19.2lbs

The reason people put giant wheels on their cars is either because they don't think that it can slow you down, or they just want to look cool and get the ladies. Also, some people actually do their homework and buy a set that is very light, so it doesn't affect the performance.

Konig Helium are very light.
Buddy Club PL Racing SF are very light / expensive
Arospeed wheels are very light
Racing Hart CP-035R are probably my favorite wheel ever
SSR Competition are incredible!

config · #12 08-02-2003, 09:24 PM

Quote:

Originally posted by loesch8102
5zigen 5ZR Copse in 17" are 23.0lbs

Racing Hart Evo C5's are about 21lbs. Not sure cause the nearest size I could find the weight for was 18x8.5. They were 28lbs.

Konig Tantrum 17x7's are 19.2lbs

The reason people put giant wheels on their cars is either because they don't think that it can slow you down, or they just want to look cool and get the ladies. Also, some people actually do their homework and buy a set that is very light, so it doesn't affect the performance.

Such as expensive ass TE37's

Thanks for all the help bro, do you happen to know of any other lightweight 17''s that you would recomend?

94tegRS · #13 08-02-2003, 09:26 PM

cool, cuz my last teg had tantrums and I was hoping to go with them but have found them for not much cash so i figured they'd be heavy, but 19 pounds sounds pretty light for 17's to me. what does a stock 15 weight without tires?

loesch8102 · #14 08-02-2003, 09:27 PM

lol. I was just writing that as you replied. Look to my above post.

loesch8102 · #15 08-02-2003, 09:28 PM

I'm not sure. I've seen a lot of different numbers. Anything from 15.7lbs to 22lbs. So who knows?

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