86 951 Driver

I am looking at getting new tires. How off would my speedo be if I had 205/55 R15 on the 924S.

ErichCS

Try something like this: http://www.powerdog.com/tiresize.cgi

205/60 15 Diameter: 24.7''
(EDITED) 195/65 15 Diamter: 25'' Factory size...

I think there is some general rule of thumb that says you can be off by +/- 0.5'' before you notice any changes in your speedometer reading. I have 205's on my 924S right now and i don't notice any error in the speedo. The wider 205's look better(IMHO) on the narrow 6'' phone dials...

Good Luck!
Erich

Manning

Erich,

195/65 15 is the stock size, not 195/60. That calculates out to 25"

I run 205/60 15 in the winter (24.7") and 205/55 16 front, 225/50 16 rear in the summer (24.9"). 205/55 16 was an optional size for the 924S by the way.

The speedos on our cars typical read too fast in my experience. Changing to a skateboard wheel sized tire is going to make it read that much faster.

ErichCS

My apologies for the wrong information. That's what i get for not looking at my tires before posting! I corrected the information in the previous post...Thanks Manning

M758

PS... I have nice set of 16x6 flat dish wheels for sale Perfect size for 205/55 R16 tires

Manning

By the way Erich, did you get my message the other day? Somebody is trying to get in touch with you about driving lights.

ErichCS

Yes Manning i did. I thought i emailed you back, thanks a lot for the info. I have been in contact with VP about that. I'll email him right now just to make sure we are on the same page.

BTW i have a source for NEW yellow driving lights for 100 each!

Later!
Erich

Manning

Zounds!!! $100.00 each new? I might need you to hook me up, especially if they have the wiring, connector and boot. One of the lights I have has a dull reflector and they both are missing the plug/boot/wire lead.

ErichCS

I look into that and let you know what i find out.

Erich