For the mathematicians

[Hog]

Originally Posted by Bob Eyres

Off the top of your head indeed.

Hey, the tape hit me at the ankles too. So are our heads too small? or are our legs too long?

Thanks for the math lesson guys.

Speaking of tire sizes, am I the only one who doesn't like lower profile tires and bigger wheels on the ZR-1?
I know it probably improves handling somewhat, but aesthetically I just can't handle the big wheel look on the 1980's C4 design.
Being straight line oriented, I like the look of 255/50x16" BFG DR's on the back. I wish there was a stock 16" wheel in the turbine, or spoke style that I could use on the Z.

No I'm with you about the over sized rims on the C4's. Some of the 16" rims with 50 series rubber look allright, but I do think that the 17" rims with 35-40 series rubber do look good on the Y and F-bodies.

I remember when Viper went from 17" rims to 18" rims and lost a marked amount of handling prowess. Rim diameters have gotten crazy and it seems the bigger is better, but not in my book. The Shelby Series 1 rims would be far better looing IMO if they were 17" rims.
More rims, more sprung mass hurts many aspects of performance, although if larger brakes are utilized, some are overcome.

With you being straight line biased, your shorter rim, taller sidewall tire makes huge sense in regards to contact patch. If it werent for fitting over brakes, a 15" rim/tire combo would be even better for supervised acceleration trials.

So far as the height/head circumference, reaching our ankles is about average IIRC.

peace
Hog

[scottfab]

Originally Posted by Bob Eyres

... snip....

Speaking of tire sizes, am I the only one who doesn't like lower profile tires and bigger wheels on the ZR-1?

Nope, I'm with ya on that. In fact I don't care for any "wagon wheel" looking wheels either. Prefer the turbine type for looks and functionality.

Originally Posted by Bob Eyres

I know it probably improves handling somewhat, but aesthetically I just can't handle the big wheel look on the 1980's C4 design.

The smaller the sidewall the more likely there'll be a loss of wheel when hitting a pot hole or whatever. The wheel mfgrs love it. Sales of replacements and all.

Originally Posted by Bob Eyres

Being straight line oriented, I like the look of 255/50x16" BFG DR's on the back. I wish there was a stock 16" wheel in the turbine, or spoke style that I could use on the Z.

Oh and one's height is also aprox the distance from finger tip to finger tip of outstretched arms.

[Funracer]

So, head circumference and finger widthe aside , generally speaking, 4.10 gears and bigger tire diameter would somewhat make the speedo more accurate vs only 4.10's or only larger
diameter tires. They affect the speedo oppositely (is that a word?).

Cancel each other out to some extent maybe a better way to say it.

Correct?

[PhillipsLT5]

Does this help?
http://www.miata.net/garage/tirecalc.html