corsa starter
Member
Registered: 20th Jan 03
User status: Offline
|
how bad is it on 17's????
|
chris_uk
Premium Member
Registered: 8th Jul 03
User status: Offline
|
i had a whisleing noise comin from the car at 60 on 15 not its 57 on 17's
|
si_reading
Member
Registered: 5th Apr 03
Location: Macclesfield, Cheshire
User status: Offline
|
You can get a calculator thingy online somewhere that you put in your old and new wheel/tyre size and it shows you how much speedo will be out!
But can't remember tha address!  Someonw on here will know of one, as thats where I got it from once!
|
Kenni
Member
Registered: 29th Jan 01
Location: Worcester(sauce) Drives: VX220 & Zaffy GSi
User status: Offline
|
Think only 2-4 mph faster. EG speedo says 60, reality youre doig 62-64mph
I'm running on 18", its 6mph faster at 60mph
|
jmucorsasport
Member
Registered: 28th May 02
Location: Cheshire
User status: Offline
|
Its hard to say because speedos can be innaccurate from 2-5 mph anyway from what i'm told, so with larger wheels on this will jus increase the gap...
|
corsa starter
Member
Registered: 20th Jan 03
User status: Offline
|
well on standards it over reads by about 3-4mph between 30-35
|
corsa starter
Member
Registered: 20th Jan 03
User status: Offline
|
well on standards it over reads by about 3-4mph between 30-35
|
Neshol
Member
Registered: 10th Jul 02
Location: Midlands
User status: Offline
|
http://www.miata.net/garage/tirecalc.html 
|
