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#1
06-10-2014, 06:22 PM
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My wear pattern is even across the tires on both sides and I have been using this setup for over 7 years now and I bought the tires and rims used which had several street miles on them and some track time before I got them.
Just saying mark
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1965 GTO: 467 (Built By Dan Willever), 400 Block, Eagle 4.25 Stroke, Eagle 6.8 Rods, BRC Pistons, Custom Grind Hydraulic Roller Cam, Edelbrock 72cc Heads Ported, HS Rockers, Doug's Headers, Edelbrock Victor 4150, QTF 850 Carb, AutoGear M22 4 Speed, SPEC Clutch and Pressure Plate, 12 Bolt 3:73 Posi. 
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#2
06-10-2014, 07:16 PM
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Example from old Firestone sales material, Firehawk INDY 500 tires
Size P275/60-R15 Approved rim width 7.5 - 9.5 inches Measuring rim width 8.0 inches SW 11.0 inches on 8" rim TW 9.0 inches on 8" rim .
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
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#3
06-10-2014, 08:22 PM
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It seems that GM is ok with a 275/60-15 on a 7" wheel. They have done it on several truck applications.
See attached tire placard |
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#4
06-10-2014, 08:31 PM
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Quote:
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#5
06-11-2014, 03:10 AM
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Can someone get a measurement of the tread with of the 275 please.
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Bull Nose Formula-461, 6x-4, Q-jet, HEI, TH400, 8.5 3.08, superslowjunk |
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#6
06-11-2014, 03:19 PM
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Quote:
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___________________________________________ the more im around people, the more i like my dogs |
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#7
06-11-2014, 07:11 AM
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Quote:
Old tires = a much greater risk of a catastrophic tire failure. |
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#8
06-11-2014, 12:21 PM
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"Can someone get a measurement of the tread with of the 275 please"
Size 275/60-15 used to more available and the actual tread width would vary slightly from the different companies. Today BF Goodrich, Cooper and Hankook all suggest a 8.9" tread width measured on a 8" rim for their 275/60-15 tires. As mentioned previously Firestone when they carried that size suggested 9.0" tread width on a 8" rim. Actual section width on the various tires will vary as well. .
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
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#9
06-11-2014, 01:01 PM
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This calculator said 10.8" wide. 28" tall. http://www.calcunation.com/calculato.../tire-size.php
Found this on the net. It must be right. Note the * at the bottom of the page. Supports my point. http://www.team3wheels.com/tech_specs_tire_chart.html
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Bull Nose Formula-461, 6x-4, Q-jet, HEI, TH400, 8.5 3.08, superslowjunk Last edited by Blued and Painted; 06-11-2014 at 01:19 PM. |
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#10
06-11-2014, 01:08 PM
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Yes, section width will vary based on rim width. No one is arguing otherwise. Doesn't mean the tread isn't making full contact.
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1966 GTO 1969 Lemans Convertible- F.A.S.T. legal family cruiser. 12.59 on G70-14 Polyglas tires. 1.78 60' 1969 Bonneville Safari- cross country family cruiser. . 1979 Trans Am 400, 4-speed, 4 wheel disc. View from the drivers seat racing down Atco Raceway- http://www.youtube.com/watch?v=GhYDMdOEC7A Ride along in the other lane-http://www.youtube.com/watch?v=mIzgpLtF_uw |
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