High speed runs in a fox?

[SonofaBish]

225/25.4=8.8582677" (section width) X aspect ratio .50 = 4.4291339 X 2 (two sidewalls) + 16" rim = 23.858268

2.73 x 336 x 160 mph = 146764.8 / 24.858268 = rpm 5,904.0638

Disclaimer: Due to manufacturing tolerences ( tire heights) this figure can only be a guess in a sense. Knowing the actual height of the tire per manufacturer will yield more accurate results.

where does the 336 come from in this? Its probably obvious, but i'm not seeing it right now?

My calculation for speed at 6000 rpms, on a 225/50/16 tire, with a 4th gear ratio of 1.00:1 (this is what the net said for the T5 tranny )

225 * .5 = 112.5 / 25.4 = 4.429
4.429 + 8 = 12.429 = r
Circumference = distance traveled by each ratation of tire = 2 * pi * r = 2 * 3.14159265 * 12.429 = 78.094" / 12 = 6.508'

1 * 2.73 = 2.73
6000 / 2.73 = 2197.8022 * 6.508 = 14303.2967 * 60 = 858197.8022 / 5280 = 162.5375 (different from what posted earlier b/c i rounded differently earlier)

piece of cake... Ray was right ... eat that doubters...

[Viper_ed]

:flipoff:

[Pure Stock]

http://www.offroaders.com/info/tech-...ng/mph-rpm.htm

[Stangman701]

And I'm not trying to prove you didn't attain 160. I was simply throwing a formula out there and could care less about who gives a **** about it and who doesn't. You got a stock tach in there?

No problem man, thanks for backing me up with the #'s. Yes it's a stock tach, hence the rounding to around 160 and not 162.blah blah blah, haha.

where does the 336 come from in this? Its probably obvious, but i'm not seeing it right now?

They're just combining all the constants like 12, 3.14, 60, 5280.
5280*12/3.14*60 is around 336

[Shaggy]

just say it. 160 in a foxbody on the highway is scary.