News:

It appears that the upgrade forces a login and many, many of you have forgotten your passwords and didn't set up any reminders. Contact me directly through helpmelogin@dodgecharger.com and I'll help sort it out.

Main Menu

Where to get these tires?

Started by knightprowl, September 25, 2014, 04:13:59 PM

Previous topic - Next topic

triple_green

when I researched the stock tire size for my 68 14" wheel the modern conversion for it was 215/70 14.
68 Charger 383 HP grandma car (the orignal 3X)

knightprowl

So it is 215 and not 225. Okay thanks for the information guys.

Thank you and Peace.

6bblgt

Quote from: HPP on September 26, 2014, 09:41:29 AM
Well, consider this, just laying a ruler on the picture above, the tread width is equal to the radius of the rim. That means its a 7" tread. That would be a hair shy if a 180mm tread width. Since a lot of radials are measured by sidewall width, add an inch to accomodate the sidewall bulge for an 8" width and that leaves you with 205mm tire. The difference between 205 and 215 is on .375 of an inch. Split that .375 between the two sides of the tire and it is only .1875 wider per side, or, IMO, not enough for anyone short of machinists, to actually notice a difference.

The first error in this calculation is the radius of a 14" wheel (above as 7") - it's actually 7-1/2" & that would make the tire 225.

:coolgleamA: Put an E70-14 (205/70/14), F70-14 (215/70/14), & G70-14 (225/70/14) all from the same manufacturer &tire line installed on the same wheel & then bolt them on the same car & although there are small dimensional differences between each size - the impact on the visual appearance is SIGNIFICANT!

One additional issue is that all 225/70/14 (G70-14) tires are NOT the same size.

knightprowl

Now I am confused. So its 225 and not 215? Which one is it? I think I will just go with 225 instead of 215. But regardless its still confusing me. So I really don't know which to pick. I know it is one or the other but which one I have no clue. So for now 225 it is until proven otherwise. But thanks for the help so far none the less guys.

Thank you and Peace.

Dreamcar

Quote from: knightprowl on September 26, 2014, 03:45:30 PM
Now I am confused. So its 225 and not 215? Which one is it? I think I will just go with 225 instead of 215. But regardless its still confusing me. So I really don't know which to pick. I know it is one or the other but which one I have no clue. So for now 225 it is until proven otherwise. But thanks for the help so far none the less guys.

Thank you and Peace.

Looking at pictures, it will be difficult for most people to know for sur between a 215 and 225. That only 10mm difference on a type of tire (bias ply) that is no longer manufactured. Even different brands can look different even though the sizes are supposed to be the same.
"And another thing, when I gun the motor, I want people to think the world is coming to an end." - Homer Simpson

1969 Charger, 383, Q5/V1W, A35, H51, N88,  numbers match (under restoration)

XS29L9Bxxxxxx

Quote from: HPP on September 26, 2014, 09:41:29 AM
Well, consider this, just laying a ruler on the picture above, the tread width is equal to the radius of the rim. That means its a 7" tread. That would be a hair shy if a 180mm tread width. Since a lot of radials are measured by sidewall width, add an inch to accomodate the sidewall bulge for an 8" width and that leaves you with 205mm tire. The difference between 205 and 215 is on .375 of an inch. Split that .375 between the two sides of the tire and it is only .1875 wider per side, or, IMO, not enough for anyone short of machinists, to actually notice a difference.



I really do not follow what yo are trying to say. :shruggy:   A 205 width tire should equate to 205 mm, whereas a 255 width tire should be 255 mm or 25.5 cm. wide. Has nothing to due with sidewalk or other dimensions.  :Twocents: Now the aspect ratio of sidewalls is another factor in a tire size, but that's another subject.  :Twocents:

HPP

Quote from: 6bblgt on September 26, 2014, 03:16:55 PM

The first error in this calculation is the radius of a 14" wheel (above as 7") - it's actually 7-1/2" & that would make the tire 225.

:coolgleamA: Put an E70-14 (205/70/14), F70-14 (215/70/14), & G70-14 (225/70/14) all from the same manufacturer &tire line installed on the same wheel & then bolt them on the same car & although there are small dimensional differences between each size - the impact on the visual appearance is SIGNIFICANT!

One additional issue is that all 225/70/14 (G70-14) tires are NOT the same size.

Uh, okay. Since we're dealing with such high quality pictures, here, I guess I'm just negligent. You are welcome to clearly define the requested size for the OP.  


Quote from: XS29L9Bxxxxxx on September 27, 2014, 07:03:54 AM

I really do not follow what yo are trying to say. :shruggy:   A 205 width tire should equate to 205 mm, whereas a 255 width tire should be 255 mm or 25.5 cm. wide. Has nothing to due with sidewalk or other dimensions.  :Twocents: Now the aspect ratio of sidewalls is another factor in a tire size, but that's another subject.  :Twocents:

Since everyone seemed to be guessing at the tire size, I was trying to reference a know dimension of the rim radius against the tread width to arrive at a metric size. Based on the quote above yours, I evidently discounted a 1/2" worth of dimension which will throw the whole calculations into an error.

IMO, even when I was 12, I always thought the GLs were way under tired and wondered why they went with such puny rubber. I don't see where the difference of a 215 vs 225 is enough to sweat the install on a car that really needs 255 minimum, but then again, I'm not in tune with the paint dab crowd either.