help tire size
Thread Starter
Racer
Joined: Sep 2005
Posts: 336
Likes: 0
From: staten island ny
help tire size
i am lookinh topurchasr boss 338 rims
spec---- Style 338, 18" x 8"
Finish: Gray spokes with polished lip
Bolt Pattern: 5-lug, 5 x 4.75"
Offset: +2mm, Backspace: 4 1/2
what would be the correct tire size to fit a 69 vette
245/40/18 or 235/50/18 or 255-45 18
the more i search the more confussing it gets
thanks
thank you
spec---- Style 338, 18" x 8"
Finish: Gray spokes with polished lip
Bolt Pattern: 5-lug, 5 x 4.75"
Offset: +2mm, Backspace: 4 1/2
what would be the correct tire size to fit a 69 vette
245/40/18 or 235/50/18 or 255-45 18
the more i search the more confussing it gets
thanks
thank you
Melting Slicks
Joined: Apr 2010
Posts: 2,793
Likes: 1,194
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
I have been looking at this as well and have been a bit confused by all the threads etc on it but in the end I think I am almost there.
Original tires were about 27" tall so my 71 currently has 215/70/15's fitted that are 26.9" tall
many people use 225/70/15 that are 27.4 " tall so if you aim to be around the 27" mark your fairly close to original height.
By using this calculator.....
http://www.rimsntires.com/rt_specs.jsp
The closest tires in 18" were 245/45/18 at 26.7" tall (around that width)
Many people go for tires that are much less than 27" and they look fine once the car is lowered but all depends on what your after.
As for the offset I believe 4" offset would be same as original so 4.5" would place an 8" rim half an inch further in than original.
Well at least that's what i have been able to work out from my research
Regards
Craig
Original tires were about 27" tall so my 71 currently has 215/70/15's fitted that are 26.9" tall
many people use 225/70/15 that are 27.4 " tall so if you aim to be around the 27" mark your fairly close to original height.
By using this calculator.....
http://www.rimsntires.com/rt_specs.jsp
The closest tires in 18" were 245/45/18 at 26.7" tall (around that width)
Many people go for tires that are much less than 27" and they look fine once the car is lowered but all depends on what your after.
As for the offset I believe 4" offset would be same as original so 4.5" would place an 8" rim half an inch further in than original.
Well at least that's what i have been able to work out from my research
Regards
Craig
Drifting
Joined: Jul 2009
Posts: 1,532
Likes: 14
From: Dallas-Fort Worth TX
4 inch is the stock back space. You can get away with 255/45/18 for back, this is 27 inch diameter. You will have to drop to probably a 245 for the front width. Check the tire calculator and find out what profile you will need probably a 40 or 45 series.
If you go with the 4.5 in bs, your tires will be tucked in .5 inch closer to the frame.
If you go with the 4.5 in bs, your tires will be tucked in .5 inch closer to the frame.
Race Director
Joined: Jan 2007
Posts: 14,935
Likes: 3,344
From: NYC NY
4 inch is the stock back space. You can get away with 255/45/18 for back, this is 27 inch diameter. You will have to drop to probably a 245 for the front width. Check the tire calculator and find out what profile you will need probably a 40 or 45 series.
If you go with the 4.5 in bs, your tires will be tucked in .5 inch closer to the frame.
If you go with the 4.5 in bs, your tires will be tucked in .5 inch closer to the frame.
All good info here. If you want to use the same sizes front and rear the 245/45-18s should work front and rear with no issues. If you are willing to maybe run bigger in the rear than the front and don't care about being able to rotate buy two 255/45-18s for the rear and try one on the front (make sure you try both sides). If it fits buy 2 more and you can have 255s all the way around. If not go with the 245s in the front and you should be good to go.
