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post #1 of 14 (permalink) Old 11-12-2007, 01:13 PM Thread Starter
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staggered sizes

Can someone explain to me what the purpose of running a wider rear tire size is? Don't have time to do a search so I'll just ask. I notice quite a few here and mustang sites run like 245/275 or 255/285-295. I can understand the purpose for a straight up drag car, but why on a street/ daily driver car?
Thanks

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post #2 of 14 (permalink) Old 11-12-2007, 03:40 PM
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Same reason as a straight up drag car, Traction. And It looks cool too.

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See a list of my real mods and pictures of my car HERE. The true performance of my car was made possible by the Carolinas Crew Chief, RobertP at Rob's Tire & Auto
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post #3 of 14 (permalink) Old 11-12-2007, 04:25 PM
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Quote:
Originally Posted by Trunk Monkey View Post
Same reason as a straight up drag car, Traction. And It looks cool too.
exactly

Ed
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post #4 of 14 (permalink) Old 11-13-2007, 12:32 AM
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Most do it for looks. From what i've experience, having a staggered size makes handing MUCH different. Because the rear has more grip then the front it gives the car a push or understeer. That is what i dont like about going with a staggered set up, but it does look damn cool. Rear wheels with a fat lip and steam roller tire just looks bad ass...
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post #5 of 14 (permalink) Old 11-17-2007, 10:41 PM
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Quote:
Originally Posted by sCrEaMiN BiRd View Post
Most do it for looks. From what i've experience, having a staggered size makes handing MUCH different. Because the rear has more grip then the front it gives the car a push or understeer. That is what i dont like about going with a staggered set up, but it does look damn cool. Rear wheels with a fat lip and steam roller tire just looks bad ass...
Problem is fixed if you run a huge rear sway bar

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post #6 of 14 (permalink) Old 11-18-2007, 04:22 PM
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Or that...^^^ LOL
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post #7 of 14 (permalink) Old 11-18-2007, 05:05 PM
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Yep, traction. Even with the staggered setup I run on the XR7, I've yet to lose traction up front in a corner, while traction in the rear is directly related to throttle position.

-Rod

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post #8 of 14 (permalink) Old 11-18-2007, 08:32 PM
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Yep, traction. Even with the staggered setup I run on the XR7, I've yet to lose traction up front in a corner, while traction in the rear is directly related to throttle position.

-Rod
I think you mean inversely related.

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post #9 of 14 (permalink) Old 11-18-2007, 08:52 PM
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Or - Directly proportional?

T = SQRT (TIRE SIZE) / THROTTLE POSITION
WEIGHT OF RIGHT FOOT * SHOE SIZE

Where:
T = Traction

Mods? Yea, I got mods ...
Air silencer delete, warp drive, dilithium crystals, flux capacitor, Slingshot Rubber band power adder, Moonshine & Gas, Leaf Blower Supercharger, Hamster Wheel & Hamster, Energizer Bunny generating 1.21 gigawatts, Mr. FusionŽ Home Energy Reactor, hover conversion and a sextant celestial navigation system (The original GPS)
Best 1/4: 1,320 nanoseconds @ 670,616,629.2 miles per hour

"There isn't that much difference anymore between spacecraft, aircraft and modern automobiles..." - Keith Henry, NASA's Langley Research Center
See a list of my real mods and pictures of my car HERE. The true performance of my car was made possible by the Carolinas Crew Chief, RobertP at Rob's Tire & Auto
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post #10 of 14 (permalink) Old 11-18-2007, 09:45 PM
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Whatever.

-Rod

Rod @ AzzKicker Cars
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90 XR7-The Meth Addict-KB SC'd 5.0L DOHC Stroker
2004 Mustang GT-The Driver-Intake/Exhaust/3.73's
1995 F150 4x4-The Mud Toy-5.0L/4R70W/33's/Warn 8274 Winch
94 LX w/Splitport 3.8L from 2000 Mustang - SOLD
2 - 90 35th Anny Ed SC's
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post #11 of 14 (permalink) Old 11-19-2007, 09:25 AM Thread Starter
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so, how big a rear sway bar would you run? I've been giving thought to a set of 17's with 245/275 or 255/285. But I knew of the understeer, just not how to overcome that issue. I like to drive a lot of curvy roads around here and I do like how staggered sizes look. Thanks for the responses.

Jon

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post #12 of 14 (permalink) Old 11-19-2007, 10:01 AM
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I run the 1.25" Addco in the back and the stock bar still in the front. The 1.25" is the largest size you can run that is still compatible with the stock front bar. Given that changing the front bar is a real PITA, I recommend the 1.25" Addco in the back.

Mods? Yea, I got mods ...
Air silencer delete, warp drive, dilithium crystals, flux capacitor, Slingshot Rubber band power adder, Moonshine & Gas, Leaf Blower Supercharger, Hamster Wheel & Hamster, Energizer Bunny generating 1.21 gigawatts, Mr. FusionŽ Home Energy Reactor, hover conversion and a sextant celestial navigation system (The original GPS)
Best 1/4: 1,320 nanoseconds @ 670,616,629.2 miles per hour

"There isn't that much difference anymore between spacecraft, aircraft and modern automobiles..." - Keith Henry, NASA's Langley Research Center
See a list of my real mods and pictures of my car HERE. The true performance of my car was made possible by the Carolinas Crew Chief, RobertP at Rob's Tire & Auto
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post #13 of 14 (permalink) Old 11-19-2007, 03:44 PM
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I have an 89 SC rear bar, along with the stock 95 SC front bar, on my 95. Running 255/40/19 and 275/35/19 on the car, and usually about 3 psi lower pressure in the rear. Balance is fine, even when I did an open-track event on these.


cheers
Ed N.

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post #14 of 14 (permalink) Old 11-19-2007, 05:07 PM
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I'm VERY happy with the 1.25" ADDCO's front and rear, Vogtland 1" drop springs, AirLift airbags in the rear coils, and 245/45/17 on the front with 275/50/17 on the rear. Stiffen up the body with some bracing, lighten the car a bit, add some power, and you've got a fun corner carver.

-Rod

Rod @ AzzKicker Cars
[email protected]
90 XR7-The Meth Addict-KB SC'd 5.0L DOHC Stroker
2004 Mustang GT-The Driver-Intake/Exhaust/3.73's
1995 F150 4x4-The Mud Toy-5.0L/4R70W/33's/Warn 8274 Winch
94 LX w/Splitport 3.8L from 2000 Mustang - SOLD
2 - 90 35th Anny Ed SC's
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