Buying Some 18" IROC replicas so tire size on these 8.5 rims inch?
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From: Waxahachie Texas
Car: 88 IROC Z/28-under re-construction
Engine: 5.7 Tuned Port
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Axle/Gears: 9 bolt Borg-Warner
Buying Some 18" IROC replicas so tire size on these 8.5 rims inch?
88 Iroc lowered 1.75 and what would you go with. I looked and looked till i'm sick... these are my tire choices for 18x8.5 with 4.75 BS
A. 215/35/18
B. 225/40/18
C. 235/40/18
D. 225/45/18
Thanks for your help before i dump the cash and dont like the way they sit
A. 215/35/18
B. 225/40/18
C. 235/40/18
D. 225/45/18
Thanks for your help before i dump the cash and dont like the way they sit
Last edited by mjdavis68; Jan 13, 2014 at 12:01 AM.
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From: Waxahachie Texas
Car: 88 IROC Z/28-under re-construction
Engine: 5.7 Tuned Port
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Re: Buying Some 18" IROC replicas so tire size?
anyone help me with this?
Joined: Aug 2011
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From: San Diego, California For Now
Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Re: Buying Some 18" IROC replicas so tire size?
Try the searching , fairly easy question , that's why people are not posting..
Are sure there 8.5 iirc they only come in 8" with
None of those tires you posted are ideal size for that wheel
Are sure there 8.5 iirc they only come in 8" with
None of those tires you posted are ideal size for that wheel
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From: Waxahachie Texas
Car: 88 IROC Z/28-under re-construction
Engine: 5.7 Tuned Port
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Axle/Gears: 9 bolt Borg-Warner
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Car: 1984 LG4 Camaro
Engine: 350 Roller Motor
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Re: Buying Some 18" IROC replicas so tire size on these 8.5 rims inch?
245-40-18 is the size you want...
Joined: Aug 2011
Posts: 2,381
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From: San Diego, California For Now
Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Re: Buying Some 18" IROC replicas so tire size?
right here....http://www.ebay.com/itm/231108188370
yea ideal size posted above
Issue with the tire sizes above is that you will get a stretch looked , smaller contact patch , and overall diameter would be off compared to stock wheel/tires
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From: Waxahachie Texas
Car: 88 IROC Z/28-under re-construction
Engine: 5.7 Tuned Port
Transmission: It's in there....
Axle/Gears: 9 bolt Borg-Warner
Re: Buying Some 18" IROC replicas so tire size?
Ahh I see now I see where you got the sizes from..yea those tire sizes are for other fitments ..
yea ideal size posted above
Issue with the tire sizes above is that you will get a stretch looked , smaller contact patch , and overall diameter would be off compared to stock wheel/tires
yea ideal size posted above
Issue with the tire sizes above is that you will get a stretch looked , smaller contact patch , and overall diameter would be off compared to stock wheel/tires
oh,. i don't want the stupid skate board look....so now what?
sorry to keep asking, i'm just looking for a comforting opinion
Last edited by mjdavis68; Jan 13, 2014 at 06:14 PM.
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Re: Buying Some 18" IROC replicas so tire size on these 8.5 rims inch?
Like said before 245/40/18 is what you need
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From: san jose, ca
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Re: Buying Some 18" IROC replicas so tire size on these 8.5 rims inch?
I'd go 245/45/18. The taller sidewall looks nicer. I have that size on my front wheels now...
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Car: 1984 LG4 Camaro
Engine: 350 Roller Motor
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Re: Buying Some 18" IROC replicas so tire size on these 8.5 rims inch?
1) It will be 1" taller than stock or 245-40-18, causing your speedo to read wrong, plus the extra diameter may have your car bottoming out or rubbing more likely.
2) You are going to be swinging a lot of weight in each corner for only a 245 width tire - with reproduction IROCs and a 245-45-18 tire, it most probably will weigh more than a 275-40-17 tire on a 17" x 9.5" wheel.
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