Discussions relating to MX5 Tyre choice, Wheels, Brakes Suspension components and other items to keep you going around corners, stuck to the ground or stopping on a dime.
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Kieran
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by Kieran » Thu Jul 05, 2012 1:57 pm
Angreal wrote:15x7 seems more convenient than 15x8 in terms of tyre sizes for a road car (not to mention cheaper?)... I guess I'm being too practical here
Practicality is the enemy!!!
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harlansmart
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by harlansmart » Thu Jul 05, 2012 4:35 pm
Lol, classic, don't know if there is
'hope' for you, but 'yes' the 195 semi generates a LOT more grip than the 225 T1-R, no comparison.
Mad Kiwi wrote:So that skinny ass, 195 semi (r888?) has way more grip than the T1r in a 225?
Maybe there is hope for my laptimes yet....(195x15 T1r's).....
Of course, else this'd be a Toyota Corona Forum!
Kieran wrote:Practicality is the enemy!!!
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siren676
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by siren676 » Fri Jul 06, 2012 3:44 pm
I've gone and got a set of 205/50-15's fitted to 2 of the wheels for now, it'll probably fix the speedo error. Will be getting some for the other 2 wheels next pay when I can afford some slim wheel nuts as well.
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harlansmart
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by harlansmart » Fri Jul 06, 2012 10:28 pm
My iPhone GPS and Link computer show the RPM at 100kph fell from 3,327 down to 3,085 so a decent drop in revs
siren676 wrote:it'll probably fix the speedo error.
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siren676
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by siren676 » Fri Jul 06, 2012 10:56 pm
Thats pretty respectable considering your wheels have a rather large rolling radius now. What does the speedo show when the gps is at 100?
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harlansmart
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by harlansmart » Sat Jul 07, 2012 12:06 am
Speedo 100 = GPS 98
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Angreal
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by Angreal » Sat Jul 07, 2012 12:50 am
That's pretty good. I was getting 110 on the speedo, 98 on the GPS with 185/60/14. Now I get 100 on the speedo and 98 on the GPS with 195/60/14 tyres.
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harlansmart
- I count 5-s in my sleep
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by harlansmart » Sat Jul 07, 2012 11:50 am
Lol, yours are mine are exactly the same... fwiw I think I now have the most accurate onboard speedo I have ever had!
Angreal wrote:Now I get 100 on the speedo and 98 on the GPS
Last edited by
harlansmart on Sat Jul 07, 2012 1:35 pm, edited 1 time in total.
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Angreal
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by Angreal » Sat Jul 07, 2012 12:31 pm
Yeah it almost gave me problems when I had the new tyres put on and was cruising down the motorway at 115 on the speedo thinking it was 105... Not sure a police officer would've let me off
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