View Single Post
Old 05-18-2015, 10:54 AM   #768 (permalink)
FPenvy
A True Z Fanatic
 
FPenvy's Avatar
 
Join Date: Jul 2011
Location: Pittsburgh PA
Posts: 38,517
Drives: 15 GT-R BE/09 370Z
Rep Power: 1402085
FPenvy has a reputation beyond reputeFPenvy has a reputation beyond reputeFPenvy has a reputation beyond reputeFPenvy has a reputation beyond reputeFPenvy has a reputation beyond reputeFPenvy has a reputation beyond reputeFPenvy has a reputation beyond reputeFPenvy has a reputation beyond reputeFPenvy has a reputation beyond reputeFPenvy has a reputation beyond reputeFPenvy has a reputation beyond repute
Default

Quote:
Originally Posted by RBfastback View Post
I may be looking too far into this but maybe someone can enlighten me.
For rear Nismo wheels changing the stock 285/35/19 over to a 305 everyone says to go with 305/30/19 but that doesn't make sense if ur doing it for traction because u may gain about .79 inch wider but your loosing overall diameter -2.04 inch or -2.4% circum. so it's a wash from what I gained going wider.
but 305/35/19 u gain .79 wide and gain 1.73 inch or 2.1% circum. and that's less of a difference or change then oem size so your speedo would technically be more accurate with the 305/35/19 even tho it's a small difference but that means slightly more meat.
( Click to show/hide )


all the percentages are less of a change for 35 series tires
go look up 305/35/19 on tirerack and tell me what you find.

__________________
324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler
Quote:
Originally Posted by F.I. Inc. View Post
Yes, they are Tony approved! Frank, when I get around to it, I may put your pipes into production. We will call them, "The FP" option.
-Tony
FPenvy is offline   Reply With Quote