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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » how much do 17s put the speedo out...... » Post Reply
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Dinokid |
posted on 24th Mar 03 at 16:59 |
Speedos are cable driven from the rotation of the wheels so if its a bigger wheel then the wheel will rotate less to go the same speed as a small wheel, so surely a speedo would read low????? | |
miles |
posted on 24th Mar 03 at 16:39 |
With 17s you wont actually be going faster than the speedo reads, well, maybe +1/2% or something. | |
Jason Iles |
posted on 24th Mar 03 at 16:07 |
With the first calculator thing i'm 0.1% out | |
vauxtillidie |
posted on 24th Mar 03 at 12:37 |
try this site ;) | |
Plymouth_Corsa |
posted on 24th Mar 03 at 11:58 |
There is another site, that measures the speed the vehicle is travelling at, and the speed it says on the speedo is below that of what the car actually does when over 70mph....my friends 205 gti was doing 90 and i overtook him, and mine read 85!!! | |
Jamie |
posted on 24th Mar 03 at 09:48 |
quote: Mine feels the same, sitting at 70 feels more like going 60. :| | |
Frankee_B |
posted on 24th Mar 03 at 09:36 |
How the fuk do u get it sorted out? do u av 2 get it on the dyno? how much is it gona cost? fuk dis, i aint flashed again. | |
MattyB |
posted on 23rd Mar 03 at 12:42 |
I've tested mine using a GPS system which is as expensive and as accurate as u can get. I posted this up before, but basically: | |
Nailz |
posted on 22nd Mar 03 at 22:25 |
shunt alter anything it calculates from the axle brace not wheel | |
dja |
posted on 19th Mar 03 at 00:22 |
You can put what you want on here in uk,as long as each axle has the same size tyre on,and the front tyres must be the same size as the rear or narrower. | |
CorsaGSI_DK |
posted on 19th Mar 03 at 00:20 |
Well...are you allowed to change the tyre size that much from original??? In Denmark we are NOT allowed to change the wheel size (diameter of whell...alloy and tyres) more than plus/minus 5 percentage from the original wheel size. | |
DanielJ |
posted on 18th Mar 03 at 23:54 |
still no luck, mine seems 2 b 10 mile an hour slower, its on 50mph an it only feels 40 | |
DanielJ |
posted on 18th Mar 03 at 23:52 |
quote: thank u :) | |
dja |
posted on 18th Mar 03 at 23:27 |
of course tyre size matters!! | |
CorsaGSI_DK |
posted on 18th Mar 03 at 23:20 |
Come on guys!!! | |
DanielJ |
posted on 18th Mar 03 at 23:01 |
wtf? tyre size wudnt matter | |
Cursa |
posted on 18th Mar 03 at 19:13 |
Depends how much rubber you have on them doesnt it! | |
DanielJ |
posted on 18th Mar 03 at 18:18 |
i no but we both got 17s an both got corsas | |
Meat-Pie-SRI |
posted on 18th Mar 03 at 18:14 |
there was a web link put on here a while ago that calculated the difference that different size wheels made. do a search for it! | |
DanielJ |
posted on 18th Mar 03 at 18:06 |
ai will do :lol: im gonna get me m8 2 drive along next 2 me on weekend i think | |
Jamie |
posted on 18th Mar 03 at 18:03 |
I was dead next to my mate and he was in his brand new standard fiesta. | |
DanielJ |
posted on 18th Mar 03 at 17:45 |
as above cos i think me speedo is 10mph out |