What kind of gearing for road racing/autocross?
04-14-2006, 02:22 PM
#2
It would ultimately depend on your power level, weight, and what track you are at. Such as short/tight in autoX or faster and more straights in roadrace/open track. As for me I'm going for top speed and some roadcourse events so 310 for me.
04-14-2006, 06:13 PM
#3
Depends on you combination and track like said in the post before.. When a NASCAR Nextel cup car goes to a roadcourse they have a pretty good idea of what there gunna need as far as rear ratio and trans ratios...But its not uncommon to take 5 or 6 different sets..say you unload with a 4.86 you'll have a spare 4.86 4.78 4.71 5.00 maybe a 5.14(9 inch stuff) and you have 2 trans in the trailer that are dissasembled with different ratios so you can build one and practice and not have to wait... maybe you'd run a 1.91-1.43-1.11-1.0 and you need a little more or less of one practicular gear(besides 4th) the trans guy will make the changes on the spare trans.. so its ready to go its nopt hard to change a gear set in a trans in 20 minutes..Same thing goes for the sports cars they just have different drivetrain (5 or 6 speed trans and an IRS of some sort) I have done both trans changes and gear changes at the track hundreds of times and nuthin will get ya goin like scalding hot gear oil.