Guest Anonymous Posted July 5, 2001 Share Posted July 5, 2001 okay you math whizzes out there, i have a question for ya guys. I'm planning on running my car in the silver state run once i get it completed and i know this is a little premature but i figure i might as well get it ironed out early. i plan on using my car as much as possible once it gets goin and also roadrace in my spare time. the thing is I'm not looking for massive acceleration, what I want is top end and lots of it I know that most r200's don't have anything numerically lower than 3.55 right?? but i figure that if I'm getting close to 480hp at the wheels (lofty goals I know ) then that kind of gearing will still throw me back in the seat on take off. what i plan on using is maybe a custom made ring that bring the ratio to 2.73:1 or around there . i know that is really low numerically but my old charger had that for the rear end and i'll tell you that even with only a little 2 barrel carbed 318 in it that thing would scream down the highway. i figure this will also help out with gas mileage considerably what i really want to do is be able to take it above the 200 mark on some nice long straightaways. the big question is what speed would i ba traveling at with doing 5000RPM through .8 overdrive hitting the ground through a set of normal sized z rated racing tires and a 2.73 rearend???? come on guys help me "get my rear in gear" sorry just couldn't resist [ July 05, 2001: Message edited by: v-8 Zfreak ] Quote Link to comment Share on other sites More sharing options...
Scottie-GNZ Posted July 5, 2001 Share Posted July 5, 2001 By my calculation, 164.6mph with a 24.75 tire. I use the following formula: (tire diam * 2.905) / (diff ratio * trans ratio) = MPH per 1000 RPM Quote Link to comment Share on other sites More sharing options...
Danno74Z Posted July 5, 2001 Share Posted July 5, 2001 V-8 Zfreak, I found this site many moons ago and I think you will find it most helpful. http://www.tolan-hoechst.com/cars/tirecalc.htm Danno74Z Quote Link to comment Share on other sites More sharing options...
Administrators SuperDan Posted July 6, 2001 Administrators Share Posted July 6, 2001 This one is good too. http://www.geocities.com/z_design_studio/ Quote Link to comment Share on other sites More sharing options...
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