i used to have 14in chrome(not by choice) on my 92-95 eg6, then i put 14in steelies on my ride. now i have Si rims with falken azenis that are wider and the rims are bigger. will this make my rpms higher in 5th gear? cuz when i cruise in fith gear now, it seems like i have to shift to a 6th gear. btw, i have a ls motor swap with a gsr trranny

 

can somebody please help me?

 

i dont think it does...........

 

Find out what the outer circumference of your old tires is and compare them to the circumference of your new ones.

If the circumference of your new tires is smaller than your old ones your rpm will be higher at any speed. But the difference would probably be very minute.


Modified by func-tion at 3:58 PM 10/28/2003

 

thats cool, i appreciate it. but it hink Si rims would be bigger than steelies.

 

wheel size and width have nothing to do with final drive. it is the overall circumfrence of the tire.

 

yea youre prolly right, its just weird now. i feel like i shouldnt be driving in 5th at such high rpm.

 

what size tires on 14's?
what size tires on 15's?

also GSR tranny is really short

 

well i used to have a 99 si tranny, and that was really short, but now the gsr is is a lot better. anyways, the 15s are 205/50 and i cant remember the 14s, but they were 195/?

 

The circumference of a 205/50/15 tire is 72.4792 inches. According to the calculator HERE

If you can remember or find the aspect ratio of your old tires you could figure out the speed differences via THAT website.

 

The diameter of your wheels/tires is not going to do anything to your RPMs b/c that signal comes off of your distrubtor. But your speedo may be off by a few MPHs...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DSeriesBKilla &raquo;</TD></TR><TR><TD CLASS="quote">The diameter of your wheels/tires is not going to do anything to your RPMs b/c that signal comes off of your distrubtor. But your speedo may be off by a few MPHs...</TD></TR></TABLE>

um the tire size has everything to do with the overall final drive. the smaller diameter, the lower the top speed for engine speed. the taller the tire, the higher top speed for engine speed.

 

well thanks everybody for all the help. like i said, it didnt start until i put 99 Si rims on my car. but i think i will just use my steelies ofr long drives and my rims for streetwhoring.