Curtis and Group,
One final 'road-tested' comment from me re the 235/75R14 American Classics I'm running on my 300-F. Just drove back to Chicago from our wonderful Minneapolis Fall Meet tonight - have now put 4,300+ miles on my tires since having them mounted on the F's stock 14"x6.5" steel wheels in April, a few days before heading down to Texas for our Spring Meet. Homeward bound through northern Wisconsin, with strong crosswinds and torrential rain for 100+ miles tonight, in addition to the heavy rains I encountered for a good part of the trip to/from Dallas, these tires have performed very well. There's no sense of fighting the car to keep it stable through these heavy downpours. I'm very happy with their performance.
I purchased my 4 tires through a Coker special promotion at a Mecum auction last fall - cost including free shipping and road hazard warranty was about $1,040. Whitewalls are 2 1/2". If your purchase them, be sure to read the online instructions for mounting - including the recommendation that wheel weights be only mounted on the insides of the rims, so as to not blemish the whitewalls.
Noel Hastalis
Burr Ridge, IL
On July 28, 2019 at 8:00 PM EMills_ATC <millserat@xxxxxxxxxxxxx> wrote:Sorry for late reply - probably already solved, but here are some data I have compiled from 1960's to 2015 on tires.
First I will list 8.00-14 as it evolved to P215/75R14 (P/225/70R14), noting that P215/75R14 is largest 14 inch whitewall (Narrow White) in current full scale production as of 2019. (Hankook Optima H724 price around $65-80). There are other specialty tires ($200-300 range) including 8.00-14, G78-14, and P215/75 R14 including wide whitewalls, but for the most part these are limited production specialty runs, in some cases using outdated equipment. There is also an American Classic in P235/75R14 in whitewall (Wide and Narrow White?).
I will note that in early days, to provide a soft ride, tire design was based on 24 psi, frequently with note in fine print to increase pressure (up to 32 psi) for sustained high speed or increased load. If I recall correctly the 24 psi assumed driver plus 2 passengers and 1 suitcase. Anything more moved you to higher load. And Speed limits were mostly assumed to be 60 mph. Later load capacities were based on 32 psi, and most current standard load range radials are based on 44 psi - so dont assume load ratings are directly comparable - and it your rims are old beat up rusty things, dont assume you can go to 44 psi safely.
Also, belted and later radial tires tend to have more flexible sidewalls and give lower ride height for a given diameter. This is reflected in the SLR (Static Loaded Radius) column if I had any data from manufacturers data sheets. Most likely your 8.50-14 had a SLR of about 13 in, while a P215/75R14 would be closer to 12 inches and even the P235/75R14 is likely to be only 12.5 to 12.6 inches, hence lowering the car about a half inch despite being oversize to the P225/75R14 equivalent to the original 8.50-14
Second I will list the 8.50-14 to P225/75R14 specifications as these are more likely applicable to C-body cars. Unfortunately the last P225/75R14 I know of were produced by Cooper in 2006.
Lastly I will provide data for 9.00-14 to P235/75R14 - again, I believe the American Classic is currently available in the P235/75R14 as of 2019.
SIZE MFG TYPE Sidewall OD LOAD RPM LR SWid RimW TWid SLR Cost Source 8.00-14 BFG Deluxe Silvertown (3-60 Mfg Spec) 27.54 1175@24 7.5 5.5 4.53 12.79 ?? 1960 BFG 8.25-14 GoodYear Power Cushion (Mfg Spec) 27.56 1380@24 8.2 6 ?? ?? ?? 1967 Goodyear 205R14 Michelin XWW (Mfg Spec) 26.9 1620 778 8.1 6 ?? 12 ?? Michelin 1979 G78-14 General Belted Jumbo 780 (OE) 27.27 8.54 6 ?? 12.47 ?? General 1971 GR78-14 Michelin XWW (Mfg Spec) 26.8 1620 782 8.4 5.5 ?? 11.8 ?? Michelin 1979 P215/75R14 Michelin X (Mfg Spec) 26.8 1665 776 8.7 6 ?? 11.9 ?? Michelin 1985 P215/75R14 Hankook H724 NW 26.7 1664 778 98S 8.5 6 5.3 ?? $81 Hankook 2014 P215/75R14 American Classic NW 26.69 1664 98S 8.5 ?? 5.68 ?? ?? Coker 2014 P215/75R14 Toyo Extensa A/S Black 26.7 1664 778 98S 8.3 12.0 Toyo 2014 225/70R14 Hankook H725 Black 26.3 1675 789 98T 8.9 6.5 6.6 ?? ?? Hankook 2014 225/70R14 General Altimax RT43 Black ?? ?? ?? 225/70R14 Cooper Cobra GT RWL 26.27 1675 8.92 6.5 7.2 ?? ?? ?? 225/70R14 BFG RedLine Red 26.3 1675 8.9 ?? 6.7 ?? $186 Coker
SIZE MFG TYPE Sidewall OD LOAD RPM LR SWid RimW TWid SLR Cost Source 8.50-14 BFG Deluxe Silvertown (3-60 Mfg Spec) 28.3 1265@24 7.86 5.5 4.73 13.07 ?? 1960 BFG 8.50-14 Firestone Deluxe Champion (3-61 Mfg Spec) 28.4 1265 8.04 5.5 ?? 13 ?? 1961 Firestone 8.55-14 GoodYear Power Cushion (Mfg Spec) 28.24 1510@24 8.5 6 ?? ?? ?? 1967 Goodyear 8.55-14 General Jet-Air II Rayon 28.26 8.54 6 ?? 12.81 ?? General 1971 8.55-14 BFG Deluxe Silvertown Coker 28.1 1740 8.35 ?? 4.75 ?? ?? Coker 215R14 Michelin XWW (Mfg Spec) 27.4 1770 765 8.4 6 ?? 12.2 ?? Michelin 1979 HR78-14 Michelin XWW (Mfg Spec) 27.5 1770 759 8.9 6 ?? 12 ?? Michelin 1979 H78-14 General Belted Jumbo 780 (OE) 27.85 8.8 6 ?? 12.65 ?? General 1971 H78-14 coker coker WW 27.6 1770 8.86 ?? 5.75 ?? ?? Coker HR78-14 Phillips66 used NW 27.45 8.75 6 6 ?? C300 ?? P225/75R14 Michelin X (Mfg Spec) 27.6 1795 757 8.9 6 ?? 12.1 ?? Michelin 1985 P225/75R14 Firestone 721 Steel Belted Radial NW 27.35 9 6 6.15 12 ?? Firestone 10-86 225/75R14 Cooper TrendsetterSE NW 27.05 1797 8.7 6 5.6 ?? ?? Cooper 2006 H70-14 GoodYear Speedway WT (Mfg Spec) 27.78 1510@24 764 9.1 6 6.81 ?? ?? 1967 Goodyear P235/70R14 Firestone SS Radial 26.66 8.85 6.5 6.27 11.54 ?? Firestone 10-86
SIZE MFG TYPE Sidewall OD LOAD RPM LR SWid RimW TWid SLR Cost Source 9.00-14 BFG DS (3-60 Mfg Spec) 28.8 1355@24 8.25 6 4.93 13.26 ?? 1960 BFG 9.00-14 Firestone DC (3-61 Mfg Spec) 29 1355 8.53 6 ?? 13.2 ?? 1961 Firestone 9.00-14 BFG DS Coker NW 28.68 8.8 ?? 4.8 ?? $184 Coker 8.85-14 General Jet-Air II Nygen 28.3 8.96 6 ?? 12.99 ?? General 1971 8.85-14 BFG DS Coker NW 28.68 1860 8.8 ?? 4.8 ?? ?? Coker J78-14 General Dual S-90 Sidewinder ?? 28.24 9 6 12.81 ?? General 1971 J78-14 GoodYear OE Polyglas DW 28.2 ?? 67 NY measured 67 NY 235/75R14 American Classic NW 27.87 1930 104S 9.25 ?? 6.3 ?? ?? Coker 2014 245/70R14 generic No known examples 27.6 1940 ?? ?? ??
Edward Mills Antique Tractors 1930-1960 Antique Cars 1960-1985On 6/25/2019 7:33 PM, 'Rich Barber' c300@xxxxxxx [Chrysler300] wrote:From:Chrysler300@xxxxxxxxxxxxxxx<Chrysler300@xxxxxxxxxxxxxxx>On Behalf Of Curtis Roys curtisaroys@xxxxxxxxx [Chrysler300]
Sent: Tuesday, June 25, 2019 1:44 PM
To: Don Warnaar <300country@xxxxxxx>
Cc: Noel Hastalis <cpaviper@xxxxxxxxxxx>; Chrysler300ClubInternational <Chrysler300@xxxxxxxxxxxxxxx>
Subject: Re: [Chrysler300] American Classic radial tiresWell, that's an easy decision, my 65 300L is original from front to back & I was hoping to keep the wheels & hubcaps!!!
Amazingly after sitting for 25 years in a garage, it still has original bias ply tires.
This club is AWESOME,??
Thanks,
Curtis
Curtis Roys, LLC
432-967-2582
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