Thread: Mixing Tires
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12-09-2005 01:56 PM #1
Mixing Tires
Hot Rods have traditionally had "Big & Little" tire/wheel combos. Now I'm reading/hearing that mixing tire sizes or brands, (not tire construction like radial & bias) can cause adverse handling! Is this just more legal BS that lawyers come up with or do I need to be concerned? Also note I mean something like a matching pair of 235/70-15's on the rear & a matching pair of 205/70-15's on the front. Might be different brands but same construction, speed rating,etc.
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12-09-2005 02:32 PM #2
I've run big/littles for decades with no problem. There may be a little handling difference, just adjust your driving habbits. Road conditions & mashing on the go peddle will adversly affect handling too. More important that the tires are in GOOD shape, properly inflated & match your application. (Example: Don't put big/littles on an off road vehicle......... or ......... don't put slicks on a daily driver .... or...... well "U" get the idea)."PLAN" your life like you will live to 120.
"LIVE" your life like you could die tomorrow.
John 3:16
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12-09-2005 02:38 PM #3
don't put the big/ little combo on a 4x4 because it can strain the transfer case, I'v heardYou don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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12-09-2005 03:37 PM #4
the can am cars and indy cars run big &little tires ,and they have no handling problems
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12-09-2005 03:43 PM #5
I think Matt hit the nail on the head,sort of, On the newer 4WD vehicles a small amount of tire size difference will have adverse affects on the transfer case (i.e. tear the hell out of it) and when I say small I'm talkin as little as 1/2inch difference in diameter will make driveline make weird noises.... And on the passenger cars with anti lock brakes & traction control you have wheel speed sensors so all tires hafta be very close in diameters or you throw the sensors off.
I don't think they are talking about our hotrods at all.........and the vehicles they are referring to would be 1991 and up...
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12-09-2005 05:47 PM #6
Takes a might big spoon to mix tires."PLAN" your life like you will live to 120.
"LIVE" your life like you could die tomorrow.
John 3:16
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12-10-2005 07:36 AM #7
I found out about this when I called "The Tire Rack" to get some advice about the best rear tires to match up w/a pair of new BFG Traction T/A's I won in a drawing ( they don't make those T/A's in my size). These newer Tration T/A's are one direction tires that are supposed to be much better than the original T/A's for wet & dry traction, cornering,noise, wear, etc.
I found three tires that had almost identical "Tire Rack" ratings for wet/dry traction, cornering,wear,etc. I figured they could pick the best of the bunch for my application. Nope, they said that mixing sizes &/or brands was dangerous & they couldn't recommend doing it. I've researched this a little on the Net & there is some info. but no specifics. Best advice I found for mixing was, keep them in pairs & pick tires that are the same type & speed rating. Also, put newer tires on the rear to avoid hydroplaning (too much front wet traction is not good). And never mix four wheel drive tires or snow tires.
I personally think this is a liability issue & tire manufactures/dealers have been advised not to endorse it. If a person does a little research & picks wisely they SHOULD be OK.
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12-10-2005 08:46 AM #8
Originally posted by pro70z28
Takes a might big spoon to mix tires.Mike
check my home page out!!!
http://hometown.aol.com/kanhandco2/index.html
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12-10-2005 08:48 AM #9
Not tryin' to stir the pot there are ya' Mike???"PLAN" your life like you will live to 120.
"LIVE" your life like you could die tomorrow.
John 3:16
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12-10-2005 09:10 AM #10
Originally posted by pro70z28
Not tryin' to stir the pot there are ya' Mike???
i would never do that.Mike
check my home page out!!!
http://hometown.aol.com/kanhandco2/index.html
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12-10-2005 09:11 AM #11
"PLAN" your life like you will live to 120.
"LIVE" your life like you could die tomorrow.
John 3:16
>>>>>>
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12-10-2005 09:20 AM #12
Originally posted by pro70z28
Mike
check my home page out!!!
http://hometown.aol.com/kanhandco2/index.html
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12-10-2005 09:51 AM #13
Yup. I prefer pre-mixed."PLAN" your life like you will live to 120.
"LIVE" your life like you could die tomorrow.
John 3:16
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12-10-2005 10:02 AM #14
That tire mix is gettin so thick ,u can not pull a laddle thru it!Its gunna take longer than u thought and its gunna cost more too(plan ahead!)
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12-10-2005 10:06 AM #15
Originally posted by shawnlee28
That tire mix is gettin so thick ,u can not pull a laddle thru it!Mike
check my home page out!!!
http://hometown.aol.com/kanhandco2/index.html
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance