Re: 255/60 or 275/60 I can't decide
[Re: 6bblgt]
#1655926
08/06/14 11:51 PM
08/06/14 11:51 PM
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Joined: Jul 2003
Posts: 3,464 Back in NJ....
EWJ
master
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master
Joined: Jul 2003
Posts: 3,464
Back in NJ....
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I run 275s on a 69 B body on factory 15x8 rims with no clearance issues.
Ed EastCoast Land Yacht Assoc. 1967 Newport Conv: 440/4 speed 1969 GTX: 440/4 speed, TX9/TX9, A34, N96 1970 Super Bee: 383/4 speed, B5/B7 1970 Coronet RT: 440/4 speed, A34, N96 1970 Coronet RT: 440/auto, A36, N96 1970 Road Runner convertible: 383/4 speed TX9/D6XW 1970 GTX: 440+6/727, A32, N96 2001 Dodge 2500 HO CTD, 6 speed, 4x4 quad cab long bed "The early bird may get the worm, but the 2nd mouse gets the cheese".
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Re: 255/60 or 275/60 I can't decide
[Re: NachoRT74]
#1655931
08/07/14 06:48 PM
08/07/14 06:48 PM
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Joined: Jan 2004
Posts: 4,570 Motor City
6PKRTSE
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master
Joined: Jan 2004
Posts: 4,570
Motor City
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295/50's on the back of mine. I wanted the nice wide tire look but didn't want it sitting all jacked up from too tall of a tire.
1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.
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Re: 255/60 or 275/60 I can't decide
[Re: 6PKRTSE]
#1655932
08/07/14 07:28 PM
08/07/14 07:28 PM
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Joined: Jun 2006
Posts: 5,163 CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,163
CT
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275 looks tougher, but with 3.23s and a 383 in front of it you likely won't be happy with how unresponsive it seems.
Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street
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Re: 255/60 or 275/60 I can't decide
[Re: FuryBoy]
#1655938
08/08/14 07:11 PM
08/08/14 07:11 PM
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Joined: Jul 2005
Posts: 11,632 SHELBY TWP,,MICHIGAN
72N96RR
I LOVE WEDGIES
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I LOVE WEDGIES
Joined: Jul 2005
Posts: 11,632
SHELBY TWP,,MICHIGAN
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with no clearance issues with either on a 72 B body ive really liked either the 275-60/15 or the 295-50/15 both on a 8 inch wheel..
1972 Road Runner / GTX 440 4spd Dana 3.54 Just about to turn 26K original miles..
A boat, a GMC truck, some Craftsman Tools, LOTS of Zombie Protection, and a few Goldfish..
If you love someone set them free.. If they come back it means nobody else wanted them either..!!
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Re: 255/60 or 275/60 I can't decide
[Re: 72N96RR]
#1655939
08/08/14 11:33 PM
08/08/14 11:33 PM
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Joined: Aug 2003
Posts: 8,828 Houston, Tx
hemi68charger
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master
Joined: Aug 2003
Posts: 8,828
Houston, Tx
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One needs to consider if future tire rotation is going to happen. I like to have the ability to rotate my tires, can't do that if you have different size tires. I think, the best all-around, on 4-corners is 255/60/15's. If one goes to the 275's up front, you'll probably be rubbing the framerails. Now, if you could care less about being able to rotate tires, I did like the 275's on 15x8's on the rear of my former '69 Charger 500 and 255's up front on 15x7's ( Magnum 500's ) my
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: 255/60 or 275/60 I can't decide
[Re: Pacnorthcuda]
#1655940
08/09/14 10:45 PM
08/09/14 10:45 PM
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Joined: Jan 2003
Posts: 5,275 near Harrisburg, Pa
440trk
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master
Joined: Jan 2003
Posts: 5,275
near Harrisburg, Pa
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Quote:
Get the tire you want, but dont be too concerned about gearing. The ONE inch height difference equates to 3.7% in gearing. In other words, if you had a 3.23 27" tire car to start with, installing a 28" tire would have the same effect as switching to a 3.35 gear ratio (if such a ratio existed). Or yet another way of looking at it, 3000rpm with a 27" would have to become 3111 rpm for the same MPH.
Your math is correct, but your application is backwards. A taller tire (28") would give you a ratio closer to 3.11 NOT 3.35 when compared to a 27" tire 3.23 ratio. Installing a taller tire is effectively like going with a numerically lower gear ratio.
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