15x7 Whos running this?
#1
Registered User
Thread Starter
iTrader: (6)
Join Date: Oct 2006
Location: Hangin in Placerville youtube.com/rallydude1515
Posts: 11,892
Car Info: 1999 RS Coupé- 1995 Mazda Miata -KTM 300
15x7 Whos running this?
15x7 is lighter AND cheaper.
does anyone use this for the street, im mainly just asking for pictures i guess. I autocross and have no money so this is why i want a 15x7.
whats an inch to save hundreds of dollars.
Thanks
otherwise ill get a 16x7 Slipstream
does anyone use this for the street, im mainly just asking for pictures i guess. I autocross and have no money so this is why i want a 15x7.
whats an inch to save hundreds of dollars.
Thanks
otherwise ill get a 16x7 Slipstream
#2
Old School
iTrader: (6)
Join Date: Jan 2001
Location: Union City
Posts: 14,983
Car Info: '99 RBP GM6
I've considered going from 16x7 on the street to 15x7, but racing on 15x7's is just not worth it, you'd have to run a really thick walled sidewall to get any soft of good overall diameter.
stick to 16 or 17 for racing.
-Gagan
stick to 16 or 17 for racing.
-Gagan
#3
Registered User
Thread Starter
iTrader: (6)
Join Date: Oct 2006
Location: Hangin in Placerville youtube.com/rallydude1515
Posts: 11,892
Car Info: 1999 RS Coupé- 1995 Mazda Miata -KTM 300
so your saying i NEED to keep my OEM overall dyameter?
for example, i COULDNT run 15 inch wheels even though they are same dyameter at all four corners? is it because everything will spin at a higher speed and wear on my car quicker?
for example, i COULDNT run 15 inch wheels even though they are same dyameter at all four corners? is it because everything will spin at a higher speed and wear on my car quicker?
#4
Registered User
iTrader: (1)
Join Date: May 2004
Location: Fremont, CA
Posts: 1,193
Car Info: 2004 WRB STi w/ s202 spoiler
I think what Gagan meant to say was...
Originally Posted by joltdudeuc
I've considered going from 16x7 on the street to 15x7, but racing on 15x7's is just not worth it. You'd have to run a tire with really thick sidewalls to get any sort of good feel because you're adding sidewall to keep your overall diameter.
#5
Registered User
Thread Starter
iTrader: (6)
Join Date: Oct 2006
Location: Hangin in Placerville youtube.com/rallydude1515
Posts: 11,892
Car Info: 1999 RS Coupé- 1995 Mazda Miata -KTM 300
i know for the OEM overall diameter you would need extra sidewall on a 15", but isnt it ok for ANY overall diameter as long as all 4 corners have the same OD?
The tire shops just tell you to stick with the OEM OD to cover their *** in case a car warranty issue gets traced back to the tires that they shouldnt have put on, right?
if your telling me to keep the OD the same because of my speedometer accuracy, i dont really care about that.
The tire shops just tell you to stick with the OEM OD to cover their *** in case a car warranty issue gets traced back to the tires that they shouldnt have put on, right?
if your telling me to keep the OD the same because of my speedometer accuracy, i dont really care about that.
#7
Registered User
iTrader: (21)
Join Date: Nov 2002
Location: Santa Clara CA USA
Posts: 1,253
Car Info: 96 Chevy Impala SS, 06 GMC 2500HD (former 02 WRX)
Bigger issue with 15s is that hardly any of them will clear stock WRX brakes...most will clear stock RS brakes (smaller).
Shame too, since a shorter tire can help in the WRX gearing for autocross (which a shorter tire would make 2nd more useful on most SCCA courses)....
Shame too, since a shorter tire can help in the WRX gearing for autocross (which a shorter tire would make 2nd more useful on most SCCA courses)....
#8
Registered User
Thread Starter
iTrader: (6)
Join Date: Oct 2006
Location: Hangin in Placerville youtube.com/rallydude1515
Posts: 11,892
Car Info: 1999 RS Coupé- 1995 Mazda Miata -KTM 300
So can i change my overall diameter from OEM standard as long as all four corners have the same rolling diameter
#9
VIP Member
iTrader: (4)
Originally Posted by 4URABUS
From a different thread, but it works here too.
These are basically 16" Forester full-size spare rims. Should be dirt cheap.
These are basically 16" Forester full-size spare rims. Should be dirt cheap.
Japanparts.com has them at US $107.75 each. But if they are just Forester spares, then can see if state side venders carry them.
#11
I <3 White Girls
iTrader: (38)
Join Date: Nov 2002
Location: Danville, CA
Posts: 26,491
Car Info: E92 M3, E70, F32, E21
Originally Posted by newyorkreload
Japanparts.com has them at US $107.75 each. But if they are just Forester spares, then can see if state side venders carry them.
What a rip off..you can get used wheels cheaper and they would weigh less.
Those things probably weigh a TON
#12
Registered User
iTrader: (7)
Join Date: Dec 2004
Location: San Luis Obispo (school), Los Altos (home)
Posts: 802
Car Info: 03 Cummins, 99 miata, 91 v8 miata, 90 spec miata
Originally Posted by kYLEMtnCRUZr
So can i change my overall diameter from OEM standard as long as all four corners have the same rolling diameter
Smaller diameter will be slower than speedo says, mileage on your gauge cluster will roll faster (will show more mileage on car than you actually will have), and top speed will be lower.
#13
Registered User
Thread Starter
iTrader: (6)
Join Date: Oct 2006
Location: Hangin in Placerville youtube.com/rallydude1515
Posts: 11,892
Car Info: 1999 RS Coupé- 1995 Mazda Miata -KTM 300
Yeah i want them for an autoX set, maybe some street.
sucks about the odometer, i didnt even think about that.
yeah the steelies wont work because i want something in the 11-13 lb range
thanks
sucks about the odometer, i didnt even think about that.
yeah the steelies wont work because i want something in the 11-13 lb range
Originally Posted by crashnscar
Yep
Originally Posted by newyorkreload
Correct.
#14
Old School
iTrader: (6)
Join Date: Jan 2001
Location: Union City
Posts: 14,983
Car Info: '99 RBP GM6
Originally Posted by kYLEMtnCRUZr
so your saying i NEED to keep my OEM overall dyameter?
for example, i COULDNT run 15 inch wheels even though they are same dyameter at all four corners? is it because everything will spin at a higher speed and wear on my car quicker?
for example, i COULDNT run 15 inch wheels even though they are same dyameter at all four corners? is it because everything will spin at a higher speed and wear on my car quicker?
at 15", if you were going to race on them, you'd want a stiff sidewall, but the OD would be way too short. So to have something acceptable, you'd have to run a fairly thick sidewall.
-Gagan