15x7 4"bs front?

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dennday67

dennday67

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I've finished up working on my wheels and have been looking at tire sizes. I currently have 215/60/R14 front and 245/60/R14 rear with 4.5bs. Although I like the wide tire look it can be a pain to drive with manual steering. So I was looking at running a 205/60/R15 and 245/60/R15 but to get a matching tread pattern it looks like I'm stuck with running BFGs. I was wanting to run cooper cobras but it seems they don't make a 205/60/R15 but rather a 215/65/R15. I'm thinking that will be too tall but looking for some feedback.
 
I put 255/60/r15's on my 70 Dart rear, and 215/65/r15's on the front they work well for me! The rears were super close on the outside with the 15x8's with 4.5 backspace, I have 15x7's on the front with 4 inches backspace...
I think in the future i'll order custom backspace on the rear of around 5 inches...
I also have my springs moved in about 3/4 inches on the inside, so I may measure the halfway point between fender n spring and relate my future backspace to that so I can fit 275's on there...
By the way at this link below I'll give you, there is full specs on all Cooper Cobra tires (recommended wheels sizes, tread widths, aspect ratios, and diameters, etc...)
http://us.coopertire.com/Tires/Passenger/COBRA-RADIAL-G-T.aspx

Just click the button mid screen to show specifications and itll give you a graph...
 
Have you thought about running 205/60r15 cooper touring cs3's on the front and cooper cobras on the rear?

If you like black wall then it will work good

I personally like the more touring or cornering oriented tire on the front
Im running bfg advantage t/a's on the front and bfg radial t/a's on the back of my demon. Main reason is because they dont make t/a's in my front size but im glad i ran into this issue because i like the handling of the advantage t/a's better. The match good for having a little different sidewall design
 
are you large bolt pattern or still small bolt???

i'm running a 15x7 with 4.5" backspace and if i did it again i'd have gone with 4.75" backspace.

i'm running 73-up disc brakes up front though and a 225/60-15 tire...

personally i don't think 4" is enough backspace..

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Im running bbp. I'm not one for mix matching tread patterns on a driver. I ended up going with the cooper cobras.
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If the main reason for going to a narrower tire is because of hard steering wheel effort due to manual steering, Get a larger diameter steering wheel. More leverage. Once you get going it isn't really that hard to steer. Or do a power steering change over and it won't matter what the tire size is anymore.
 
The stock steering wheel is in perfect condition. Its odd that the online tire calculator shows the 215/60 and the 215/65 as both being 8.5" wide but the new fronts are nearly an inch narrower.
 
abodyjoe said:
are you large bolt pattern or still small bolt???

i'm running a 15x7 with 4.5" backspace and if i did it again i'd have gone with 4.75" backspace.

i'm running 73-up disc brakes up front though and a 225/60-15 tire...

personally i don't think 4" is enough backspace..
Click to expand...

Ditto this. I run a 17x7 with a 4.75 back space. It fits perfect, it almost like a measured 25 times and made a math model in SolidWorks for the front and rear of various wheel and tire sizes and their respective bulge.....

Steering hard? Stage 3 Firm Feel power, get some assist and a quicker ratio. Win Win.
 
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