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moose0211
Senior Member Joined: 23-September-2009 Location: Baltimore Status: Offline Points: 456 |
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Posted: 31-December-2009 at 4:28AM |
Hello all, I am about to buy tires and wheels and i like Cragar s/s rims and those black tires with white letters. I would like the biggest tire that can fit in the back without it sitting too high and a good sized one in the front. I tried the tire thread but i don't understand the sizes. Any recommendations? thanks
Moose
Edited by moose0211 - 31-December-2009 at 4:29AM |
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Eliteman76
Admin Group Joined: 20-March-2006 Location: Nebraska, USA Status: Offline Points: 5044 |
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Moose...depending on how tall of a tire you want to go with, I know a few guys here are running a 275/60/15 out back, it's a bigger tire and fills the wheel well out nice.
I am a fan of 295/50/15 tires, but they are a bit shorter so if you have deep gearing,
255/60/15 tires on all 4 corners for a balanced look, but it is always sort of a preference of taste and honestly, budget.
The tire sizes are now pretty much based off the metric system:
example: 275/60R15
275 = width {I think millimeters}
60 series {this is the side wall height, but I forget the way, if it's like 60% of the width or what}
R = rim
15 = rim diameter
There are other guys here that can chime in on this to better explain it.
Andy
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Andrew:GTS.ORG admin, '72 Q code 5 speed Restomod
Pondering: #99Problems |
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Psquare75
Admin Group Member of the Stroker Club Joined: 26-November-2005 Location: United States Status: Offline Points: 4591 |
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My new Cougar has 235 70 15s in front and 275 60 15s in back, on 15 x 8 s.
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Paul
77 XR7 460/C6/3.00:1 *SOLD* 78 XR7 523/C6/3.5:1 79 F100 460/TKO500/3.25:1 'I also have some left over potatoes-I understand you can generate electricity from them'- Foote500 |
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Regul8r
Admin Group Moderator Joined: 26-December-2007 Location: Sarasota FL Status: Offline Points: 6624 |
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yup Rear is 2 options in a 15inch rim...
Well 2 that are READILY available and cheap
295/50/15
275/60/15
mount the 295s on 8 or 10 inch rims
the 275 work on 7 or 8 inch rims
Those are the best options, 275 will fit INSIDE the wheel lip, 295 will stick out the wheel lip.
The 295 is shorter and with just a little lift no issues.
The 275 would be the best all around (rear) option that requires nothing but buying a 15x8 rim.
As for the fronts... some one else will have to chime in on that!
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Carl Corey (Moderator/Event Coordinator) Contact ANYTIME!
1976 Ford Elite "Lola Mae" 97 Suzuki Intruder 1400 US Army Retired |
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moose0211
Senior Member Joined: 23-September-2009 Location: Baltimore Status: Offline Points: 456 |
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Thank you Andy, I finally understand those sizes! I was looking at some pics and I like the 275s. Would a bigger tire affect take off times? Also, what does offset have to do with this?
Thanks
Moose
Edited by moose0211 - 01-January-2010 at 6:21AM |
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Regul8r
Admin Group Moderator Joined: 26-December-2007 Location: Sarasota FL Status: Offline Points: 6624 |
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The "R" does not mean rim it means Radial.
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Carl Corey (Moderator/Event Coordinator) Contact ANYTIME!
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Psquare75
Admin Group Member of the Stroker Club Joined: 26-November-2005 Location: United States Status: Offline Points: 4591 |
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a 295 will fit under the rear with proper backspacing.
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Paul
77 XR7 460/C6/3.00:1 *SOLD* 78 XR7 523/C6/3.5:1 79 F100 460/TKO500/3.25:1 'I also have some left over potatoes-I understand you can generate electricity from them'- Foote500 |
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Eliteman76
Admin Group Joined: 20-March-2006 Location: Nebraska, USA Status: Offline Points: 5044 |
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radial? Really, I always assumed it meant "rim".
lol, see what I am good for?
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Andrew:GTS.ORG admin, '72 Q code 5 speed Restomod
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moose0211
Senior Member Joined: 23-September-2009 Location: Baltimore Status: Offline Points: 456 |
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do you know what offset i would need to have 275s?
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Psquare75
Admin Group Member of the Stroker Club Joined: 26-November-2005 Location: United States Status: Offline Points: 4591 |
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I have a 9" wide cragar in back with a 4.5" backspacing.
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Paul
77 XR7 460/C6/3.00:1 *SOLD* 78 XR7 523/C6/3.5:1 79 F100 460/TKO500/3.25:1 'I also have some left over potatoes-I understand you can generate electricity from them'- Foote500 |
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picon3
Senior Member Joined: 20-February-2007 Location: North Carolina Status: Offline Points: 2097 |
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Here's my setup. I've had no problems at all.
Magnum 500 15 x 8 wheel:
72 Ford Gran Torino Sport
Front Tire -P255/60/R15
Rear Tire - P275/60/R15
Front Rim -15x8 - (4.50" Backspacing)
Rear Rim - 15x8 - (4.50" Backspacing)-fills the rear wheel nicely. No rubbing.
Center Bore Diameter 2.125 inch with press on caps.
Paul~
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1972 GTS 351CJ-4V black/black
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moose0211
Senior Member Joined: 23-September-2009 Location: Baltimore Status: Offline Points: 456 |
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Okay, with somr reasearch and help from UANTE and picon3's posts, I have decided on
Cragar s/s rims
Front- 15x8s P255/60/R15 tire
Rear- 15x10s P295/50/R15 tire
DO you think this is a good set up? and what offsets would be best?
Also, whats the bolt pattern? Edited by moose0211 - 03-January-2010 at 11:56AM |
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Regul8r
Admin Group Moderator Joined: 26-December-2007 Location: Sarasota FL Status: Offline Points: 6624 |
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On my Dakota I run stock 15x8 rims rear 295/50
front 265/50
it is a GREAT set up,
I am doing the same sizes on the Torino, except rear rims are gonna be 15x10 and I think fron tis gonna be 15x7. thats what I have in slot mags at the house.
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Carl Corey (Moderator/Event Coordinator) Contact ANYTIME!
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Classicfitness
Senior Member Joined: 10-March-2009 Location: Montreal Status: Offline Points: 412 |
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BF Goodrich Radial T/A 215/70R14 on the four corners of my GTS.
I find it a nice fit Edited by Classicfitness - 03-January-2010 at 4:11PM |
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'72 GTS 351-4b Gold Glow
'75 Elite 400 Polar White My car blog: www.fordtorino72.blogspot.com |
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73GTS
Senior Member Joined: 22-September-2008 Location: Cleveland, Ohio Status: Offline Points: 945 |
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Maybe some pics of the different sizes installed would be more helpful.
I know I'm confused about deciphering the sizes anymore. P275/60R15 used to mean height/width/(radial)/rim size. A P295/50R15 tire is actually shorter than the P275/60R15. I was told it has to do with the width. 40's, 50's, 60's. If you want a taller tire than the P275/60R15 you need something like a P295/60R15. This size (60) would be taller, but in a 50 series the P295 is actually shorter than the P275/60R15. Compared to the P275/50R15, the P295/50R15 is taller.
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Jim
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Regul8r
Admin Group Moderator Joined: 26-December-2007 Location: Sarasota FL Status: Offline Points: 6624 |
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ok here's the deal...
P275/60R15 means height/"SERIES" or width/radial/rim size.
YES A P295/50R15 tire is actually shorter than the P275/60R15
275 (275MM or 27.5CM) equals 10-13/16" just over 10.75 inches WIDE
295 (295MM or 29.5CM) equals 11-9/16" just over 11.5 inches WIDE
NOW for the Series/Width explanation
This is the height of the sidewall...
70 series, the sidewall measurement is 70% of WHATEVER the width number is 60 series, the sidewall measurement is 60% of WHATEVER the width number is50 series, the sidewall measurement is 50% of WHATEVER the width number is
ETC...
SO...
a 275/60 is 10.75WIDE(approx) times 60% = 165MM Sidewall height (16.5CM or 6.5 inches)
a 295/50 is 11.5 WIDE(approx) times 50% = 147.5MM Sidewall height (14.75CM or 5.75 inches)
now to see how the 275/60 is TALLER than the 295/50...
rim is 15 inches across plus 2 times the sidewall...
275/60 is 6.5" x 2= 13" + 15" = 28 inches tall or DIAMETER (APPROX)
295/50 is 5.75" x 2= 11.5" + 15 = 26.5 inches tall or DIAMETER (APPROX)
have to look at the manufacturer of the tire also!
Different tires have different characteristics and treads!
put two different 295s next to each other and you can see the difference!
Also put them side by side and they will be different heights as well.
this is also true if you put a 275/60 next to a 295/50, will be obviously different in heights some bigger than others.
OH, WAIT!!
I almost forgot!
RIM WIDTH... THAT will greatly affect the size of the tire too!
a 15x10 rim with a 295/50 will make the tire sit wider and shorter than the same tire will be on a 15x8 rim. As the tire will spread out to rim and not bulge out on the sidewalls and raise up.
Hope that all helps...
I will get pics later,
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Carl Corey (Moderator/Event Coordinator) Contact ANYTIME!
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Regul8r
Admin Group Moderator Joined: 26-December-2007 Location: Sarasota FL Status: Offline Points: 6624 |
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275/60/15 on the car
295/50/15 set in place, and yes that is the aircleaner cover in place of the rim, but the tire is centered on the axle to show how it would sit.
Here is a 285/35/20 mounted for fun (YUCK)
Here are pics of the front's on it now 225/70/14
this is a full shot of it with the 275/60/15 rear and 225/70/14 front it has air shocks... without them blown up the car sits WAY down on the rear putting the tire up in the wheel well about 2 inches.
Here is what it looked like the day I got her home, the fronts were something stupid like 205/50 or 60 14's and the rears were SMALL 15's
here is the 275/60 from the rear ALSO you can see on my Dakota the 295/50/15s on the rear mounted on 15x8 rims(see the bulge in the sidewall)
here is the 295/50 from the rear
And 2 more shots of the 275/60s (the truck has it's itty bitty snow tires on it in this pic)
I will have COMPARISON pics as soon as the snow clears!
I have the 295/50/15's mounted on the 15x10 rims waiting to go on!
then I'll unmount these 275/60 and mount some 265/50 on those rims to put on the front or close to that size (255/60 maybe)
Hope any of this helps!?
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Carl Corey (Moderator/Event Coordinator) Contact ANYTIME!
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Regul8r
Admin Group Moderator Joined: 26-December-2007 Location: Sarasota FL Status: Offline Points: 6624 |
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New pics of the 295/50 mounted on the 15x10 rim
Edited by cowboyupdjcarl - 03-January-2010 at 4:25PM |
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Carl Corey (Moderator/Event Coordinator) Contact ANYTIME!
1976 Ford Elite "Lola Mae" 97 Suzuki Intruder 1400 US Army Retired |
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Psquare75
Admin Group Member of the Stroker Club Joined: 26-November-2005 Location: United States Status: Offline Points: 4591 |
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http://www.miata.net/garage/tirecalc.html
Use this. It visually shows you the difference in tire size.
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Paul
77 XR7 460/C6/3.00:1 *SOLD* 78 XR7 523/C6/3.5:1 79 F100 460/TKO500/3.25:1 'I also have some left over potatoes-I understand you can generate electricity from them'- Foote500 |
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73GTS
Senior Member Joined: 22-September-2008 Location: Cleveland, Ohio Status: Offline Points: 945 |
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Can anyone please explain in simple terms what this means? I plugged in a stock tire with 4:30 rear gears (my size) and a bigger tire to see what effect it has on the rear ratio. I would think the 2 tires would need to have the same circumference to retain the same rear ratio.
<<The circumference of the P215/75 x 15 original tire is 87.0121 inches
The circumference of the P335/55 x 15 aftermarket tire is 92.7016 inches Your speedometer reading is 93.8% of your true speed. The ratio of your old vs. new tires is 0.93. The current differential ratio is: 4:30 To retain the same overall gear ratio, you will need a differential with a 4.30 ratio>> |
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Jim
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Psquare75
Admin Group Member of the Stroker Club Joined: 26-November-2005 Location: United States Status: Offline Points: 4591 |
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You are correct., same circumference = same ratio.
The calculator you used doesnt sound right.. You should need a slightly lower (numerically) gear to keep the 4.30 ratio. I'd try another. |
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Paul
77 XR7 460/C6/3.00:1 *SOLD* 78 XR7 523/C6/3.5:1 79 F100 460/TKO500/3.25:1 'I also have some left over potatoes-I understand you can generate electricity from them'- Foote500 |
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moose0211
Senior Member Joined: 23-September-2009 Location: Baltimore Status: Offline Points: 456 |
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cowboyupdjcarl, did you ever mount those 295s on your car, if you did can you please post some pics i would like to see how they look. thanks
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Regul8r
Admin Group Moderator Joined: 26-December-2007 Location: Sarasota FL Status: Offline Points: 6624 |
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I was going to do it this past weekend but ran out of time.
Need to pump up the tires and air shocks before I do it.
COLD spell running through here again!
Going away for the weekend as well so will not get to it til next weekend.
CANNOT WAIT for summer and the long sunny warm days!
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Carl Corey (Moderator/Event Coordinator) Contact ANYTIME!
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moose0211
Senior Member Joined: 23-September-2009 Location: Baltimore Status: Offline Points: 456 |
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Okay, so I was looking a Mickey T tires and i saw that thee recomended rim size for a 275/60/15 was like 15x8 to 15x9.5. I wanted them on 15x10s because because I saw them on UANTEs thread. So my question is, can I mount them on a 15x10 with no problem?
Thanks
Moose
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302ford
Member Joined: 24-February-2008 Location: vancouver Status: Offline Points: 178 |
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You could but it may look at bit off. 295's on a 10" have no buldge, so 275's are guna be straight up and down or leaning in slightly.
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79 LTD II 408/TKO/3.7's
11.78 117.3mph. drag radials |
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moose0211
Senior Member Joined: 23-September-2009 Location: Baltimore Status: Offline Points: 456 |
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Okay, what tire could I get that is as wide as the 295 but is a little higher? |
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Regul8r
Admin Group Moderator Joined: 26-December-2007 Location: Sarasota FL Status: Offline Points: 6624 |
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nothing out there until you go into a Drag/Street Radial OR you go to a Mickey Thompson Sportsman.
There are ONLY two options for LARGE size at the 15 inch rim size (that I've found).
295/50-15 Short and Fat
275/60-15 Taller and no so Fat
Depends on exactly what you want.
for a 10 inch rim... 295 fits best.
Of course there are 265, 255, 245, 235 in all different aspect ratios.
Edited by cowboyupdjcarl - 07-February-2010 at 8:00AM |
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Carl Corey (Moderator/Event Coordinator) Contact ANYTIME!
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Eliteman76
Admin Group Joined: 20-March-2006 Location: Nebraska, USA Status: Offline Points: 5044 |
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You could go to a 295/60/15, in theory should fit fine, but I have not been able to pick up a set to test with the 15x10 rims I have.
Speaking of which, anyone that is looking for a pair of Chrome 15x10 wheels, I have a pair, and you can pick up matching wheels pretty cheap... |
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Andrew:GTS.ORG admin, '72 Q code 5 speed Restomod
Pondering: #99Problems |
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Regul8r
Admin Group Moderator Joined: 26-December-2007 Location: Sarasota FL Status: Offline Points: 6624 |
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Andy,
There are NO/ZERO/NADA 295/60/15s ANYWHERE!
IF I could find them in a street radial, not some drag slick then I would DEFINATELY have them!
I am sure many others would too!!
for me a 295/60 would be the holy grail, all mighty, blue moon, end all beat all... but alas... it doesn't exist.
NOW, I PRAY SOMEONE CORRECTS ME ON THIS!!!
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Carl Corey (Moderator/Event Coordinator) Contact ANYTIME!
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Eliteman76
Admin Group Joined: 20-March-2006 Location: Nebraska, USA Status: Offline Points: 5044 |
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Sorry, yes, I know, only drag radials.
They have tread, so you *could* run them on the street...
Honestly, I wish I could get a 295/50/16 but I have been told BFG killed that size.
Tire rack has a couple however...but no way am I going to pooch a couple onto 16x7 rims...
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Andrew:GTS.ORG admin, '72 Q code 5 speed Restomod
Pondering: #99Problems |
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