tire/wheel size - 9" wheel, largest tire?
12-31-2008, 03:38 PM
#11
Cut & Paste Expert
Join Date: May 2007
Location: NW Arkansas
Posts: 13,322
the speedo unless you are speed fanatic.
I have 255/45-18 BFG g-Force KDWIIs on 18 x 8.5s.
I guess I could have gone 275/40-18s as the
BFG chart showed them for 8.5" min rim width
and kept the stock Revs/Mile about the same
as well. The 275/40s were locally unobtainable
in a reasonable time frame but the 255/45s were
just a day away.
235/50R18 STOCK
9.251" WIDE
27.251" TALL
85.641" ROUND
740 REVS / MILE
255/45R18
10.039" WIDE
27.035" TALL
84.934" ROUND
746 REVS / MILE
275/40R18
10.826" WIDE
26.661" TALL
83.759" ROUND
756 REVS / MILE
Last edited by 157dB; 12-31-2008 at 03:45 PM.
12-31-2008, 05:21 PM
#12
3rd Gear Member
Join Date: Oct 2007
Location: The OC, CA
Posts: 879
16 revs per mile difference is unnoticable on
the speedo unless you are speed fanatic.
I have 255/45-18 BFG g-Force KDWIIs on 18 x 8.5s.
I guess I could have gone 275/40-18s as the
BFG chart showed them for 8.5" min rim width
and kept the stock Revs/Mile about the same
as well. The 275/40s were locally unobtainable
in a reasonable time frame but the 255/45s were
just a day away.
235/50R18 STOCK
9.251" WIDE
27.251" TALL
85.641" ROUND
740 REVS / MILE
255/45R18
10.039" WIDE
27.035" TALL
84.934" ROUND
746 REVS / MILE
275/40R18
10.826" WIDE
26.661" TALL
83.759" ROUND
756 REVS / MILE
the speedo unless you are speed fanatic.
I have 255/45-18 BFG g-Force KDWIIs on 18 x 8.5s.
I guess I could have gone 275/40-18s as the
BFG chart showed them for 8.5" min rim width
and kept the stock Revs/Mile about the same
as well. The 275/40s were locally unobtainable
in a reasonable time frame but the 255/45s were
just a day away.
235/50R18 STOCK
9.251" WIDE
27.251" TALL
85.641" ROUND
740 REVS / MILE
255/45R18
10.039" WIDE
27.035" TALL
84.934" ROUND
746 REVS / MILE
275/40R18
10.826" WIDE
26.661" TALL
83.759" ROUND
756 REVS / MILE
01-01-2009, 05:03 PM
#13
4th Gear Member
Join Date: Oct 2007
Location: Harrisburg PA
Posts: 1,778
dont wanna jack the thread but argo do you run 275s all around for your track days? i've been looking to upgrade my rims/tires and i'm not sure if i want to run 275s all around or stagger with 245s up in the front (its only a v6... the 275s might slow me down haha).
Norm has a good point, the NT01s and other super high performance tires do have very stiff sidewalls, thus my experience (275 on 9" rim =
) may not be the same as a lessor tire would give.
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