RED82TA5.7L

ok. i have 16X8 Formula Rims on my 82 T/A. but i need new tires. i want to put 245/50/16 on the front. but i want to go wide on the rear but how wide can i go on these rims. is 265 ok. or should i go with 255. thanks

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RED82TA5.7L
1982 T/A
350 CFI(TPI soon)
"Not Stock"
Mods and Info

T/A / GTA / Firebird
TransAmGTA.com

[This message has been edited by RED82TA5.7L (edited November 10, 2001).]

89RagTopRS

255s don't rub, that's all I know, so I say go with those.

age

I have 245's in the front and 265's in the rear..

i think BFG Radials are the only ones in 265's

91Bird305

265's will rub, 255's won't. I have 16x8 255/50/16's and they work great. I had 265's on my 15x7's and they rubbed.

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
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deadbird

Keep in mind as you increase width, the height increases w/it, slowing down your speedo.

245/50 = 25.65" height, 9.1" width*
255/50 = 26.04" height, 9.7" width
265/50 = 26.43" height, 9.9" width

255/50's made my Camaro's speedo off by 5mph around 50 and have had no rubbing problems.

265/45 = 25.39", you could go with this size for widest on an 8" wide rim w/the least speedo accuracy problams. If it was possible to mount (?) 275/45 is an exact height match to the 245/50's.

You can check for yourself using this nifty webpage
http://elvis.rowan.edu/~kristovi/java/Tire.html

*Tread witdths are based Kumho VictorRacer tire specs

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[This message has been edited by deadbird (edited November 12, 2001).]

RED82TA5.7L

well. my speedo is off by 15. when im going 70 it says 85. so if it slows the speedo it will help. so ill go with 255. thanks for your help

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RED82TA5.7L
1982 T/A
350 CFI(TPI soon)
"Not Stock"
Mods and Info

T/A / GTA / Firebird
TransAmGTA.com

pico87iroc

255 is the width this would do nothing to your speedometer

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87 IROC-Z 305tpi
still $h!ten on
rustangs

RED82TA5.7L

255 is the distance in MM from one side of the tire to the other(including sidewall) and the 50 is the percentage(i think) that is on the sidewall. so going to 255 will change my speedo

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RED82TA5.7L
1982 T/A
350 CFI(TPI soon)
"Not Stock"
Mods and Info

T/A / GTA / Firebird
TransAmGTA.com