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315-30-18 tires
#2829723
10/07/20 11:10 AM
10/07/20 11:10 AM
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Joined: Jan 2010
Posts: 1,442 NW Chicago suburban area
Mopar Mitch
OP
pro stock
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OP
pro stock
Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
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Anyone running 315-30-18 tires? front and rear? preferably on 18x11 rims?
Rim brand/model? specs ... backspacing offset?
Rear leaf clearance .. in factory stock location (not inboard)?
Front fender clearance issues?
Rear fender clearance issues?
My F/R lips are flushed and slightly pulled for clearance of 275-45-16 Hoosiers on 16x10 rims with zero offset.
I can easily fit 275-40-17 or 18 rims... but I'm seriously considering 315-30-18 tires (200 TW) front and rear... choice of rim is the big decision with the backspacing and offset. If needed, a little more fender mods would be done... they look stock despite the minor mods.
E-body... Challenger is my car. Used for autocross activities.
Last edited by Mopar Mitch; 10/07/20 11:27 AM.
Mopar Mitch
"Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers!
Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
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Re: 315-30-18 tires
[Re: Mopar Mitch]
#2830271
10/08/20 10:23 AM
10/08/20 10:23 AM
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Joined: Dec 2003
Posts: 22,695 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,695
Bitopia
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That would IMO be huge improvement. My first concern is front fitment, No sure how it could be done in front without a rather unfavorable offset and/or restricted turning arc, but if possible I would do it in a heartbeat. Second concern, it seems to me tire availability is every year becoming more narrow, meaning what you can buy this year maybe no longer be available in the next year or two, and lastly, is 11"W may not be the most favorable width for 315 or at least right on the edge, not sure. So is there already a large selection of suitable's 315-30x18 currently available to chose from?
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: 315-30-18 tires
[Re: jcc]
#2830322
10/08/20 11:40 AM
10/08/20 11:40 AM
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Joined: Jun 2018
Posts: 350 Mequon, WI
gzig5
enthusiast
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enthusiast
Joined: Jun 2018
Posts: 350
Mequon, WI
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Currently about ten options in that size, which is better than a lot of the wider 18" options. https://tiresize.com/tiresizes/315-30R18.htmI am looking for 315 square if I can do it, but I could live with 295 or 305 on the front. I am pretty sure those are doable. Got a ways to go before I'm ready for new shoes though.
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Re: 315-30-18 tires
[Re: gzig5]
#2830426
10/08/20 03:11 PM
10/08/20 03:11 PM
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Joined: Jan 2010
Posts: 1,442 NW Chicago suburban area
Mopar Mitch
OP
pro stock
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OP
pro stock
Joined: Jan 2010
Posts: 1,442
NW Chicago suburban area
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gzig5 -- T/Anks for the link to RylisPro... I recall that discussion. Wondering if anyone else had gone that route... rim selection??
Mopar Mitch
"Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers!
Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
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Re: 315-30-18 tires
[Re: joes68340s]
#2830690
10/09/20 10:06 AM
10/09/20 10:06 AM
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Joined: Jun 2018
Posts: 350 Mequon, WI
gzig5
enthusiast
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enthusiast
Joined: Jun 2018
Posts: 350
Mequon, WI
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Tire size is one thing but the custom wheel is the expense. I run 285-35 18 on a 67 Valiant on cheap18x10 mustang style wheels. With the mods done to the fenders on my Valiant I could run 315s it’s all about the wheel. Very true. The off the shelf selection of 18" wheels wider than 9.5" with appropriate backspacing isn't very good. Where you can get a nice set of four 9.5" wheels for less than $1000, it gets a lot more expensive the wider you go. But, you gotta pay to play I guess.
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