mx5cartalk.com

Have you seen this post?

http://www.aus-cartalk.com/viewtopic.php?t=24296

However I suspect that your particular issue (can you call this an issue?) may beyond a simple tyre change, I suspect you are going to need wider wheels (and larger diameter) wheels to give you the extra surface area.

What power are you putting out?


J

I run 15x7 on my NA8 turbo with 205/50/15 RE55s tyres for the track.
With 160rwkw I light up the tyres in 2nd gear in a straight line under full throttle application. This is with a Torsen lsd.
With Dunlop FM902 205/55/15 on the street I was lighting up 3rd if the surface wasn't good.
The MX5 is designed to go around corners so you are always going to struggle with traction in 1st in a FI car. There is simply too much torque.
Winding down your boost or changing to a setup that allows higher boost in higher gears could be an option.
Jake

you should have got a supercharger

Why is that?
Because superchargers dont make enough power to spin the wheels?
Jake

You could always save up for the time being, and get a set of 15x8 6ul wheels from 949 racing, that were designed for MX5's with high horsepower.

http://949racing.com/index.asp?PageAction=VIEWCATS&Category=2

Then you will have no problem running a 225 tyre..

Blue94t wrote:Why is that?
Because superchargers dont make enough power to spin the wheels?
Jake

no because its a much more linear delivery perfectly suited to the 5 - unlike that ghastly nothing then everything of turbos. its a Cretans sport.

about the $1100 mark I think..

A set of 15x7's, a Torsen LSD and a set of Toyo RA1's will fix that problem...maybe!

205/50 would go better on a 15 x 7. Mine were just a little too rolly on the 6.5.