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 > E rated tire with max psi of 65?

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JIMNLIN

Oklahoma

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Joined: 09/14/2003

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Posted: 12/04/20 07:15am Link  |  Quote  |  Print  |  Notify Moderator

grit wrote:

And we’ve all had experiences we learned from.
I learned about the right width rims for tires and right pressure for treadwear at the same time, same truck, 1 set of tires.

Very true.
Other folks,mine included, experience with proper tire width/wheel width come from a haulers perspective carrying max or close to max axle/wheel loads on trucks and trailers 24/7 for 70k-90k miles a year. Many times its two sets a year on the truck and the trailer. So proper wheel width for the tires tread width means more trouble free/best handling/more miles down the road.
Big oversize wide 65 psi tires didn't give the best service/mileage/handling for any of five trucks in my huge [emoticon] five truck fleet.

So yeah we apply our personnel experience(s) in many choices.


"good judgment comes from experience, and a lot of that comes from bad judgment" ............ Will Rogers

'03 2500 QC Dodge/Cummins HO 3.73 6 speed manual Jacobs Westach
'97 Park Avanue 28' 5er 11200 two slides

BurbMan

Noblesville, IN

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Posted: 12/04/20 07:51am Link  |  Quote  |  Print  |  Notify Moderator

BenK wrote:

Burbman...I’d go down in width and go to a higher aspect ratio (Larger number, which is the percentage of section width) for your setup. A higher profile tire’s sidewall will help when you go to the beach and that sand those beaches are famous for.


Hey Ben good to hear from you! The issue with taller aspect ratio is overall diameter of the tire....if you look at the spec chart, a 295/70-18 is significantly taller than stock.

I was out on the beach one time this year in early November for a trial run. Missed most of the beach season due to camper reconstruction. I aired these big tires down to 20 psi (I was going to 15psi with the 265/75-16's on the Burb) and took this pic...I am a size 13, so my foot measures about a foot...

[image]

Much wider footprint than the burb tires. Also bear in mind that the burb with the TT attached was about 8600 lbs, this rig with the camper is about 11,600 lbs.

Can't wait to get out there again

[image]


2015 Ram 3500 SRW 4x4 Laramie Crew Cab Long Box, Cummins diesel
2002 Lance 811 Slide-In Camper
SOLD: 2008 Terry 34' TT
SOLD: 2001 K2500LT 8.1L Suburban

Lance 811 Renovation Story!
Project Complete!
Maiden Voyage!


MFL

Midwest

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Posted: 12/04/20 08:00am Link  |  Quote  |  Print  |  Notify Moderator

MFL wrote:

Good to see where your info comes from. While there are many types of tires, if you would have taken the time to read the link Burb posted, it is a hybrid type (dual purpose) tire, that by design, would work best, considering sidewall and tread at 65 psi. Other tires purpose will vary, and while e-rated, may also be less than 80 psi

CapriRacer wrote:

"Ah .... That's not how it works."

MFL wrote: JUST YOUR OPINION

All forums are full of opinions!! Seldom are these backed up with facts. In the past, you have posted info that would cause a dangerous condition for someone taking your advice, while towing a heavy trailer. Due to lack of knowledge, you suggested airing TV rears to door sticker (35 psi), even though tire stated max was 50 psi. Yes, I know, the correct info may not have been available in the book at hand. This is where someone's opinion with actual experience matters more.(this info for Grit Dog, concerning his statement of your info always correct) Yes, GD also knows better, from actual experience!

Lots of things to consider for a dual purpose tire, including compounds, softer/firmer, longevity over function, etc.

Lol..."heat is a tire killer"

Is there anyone on this forum, that does not know this...no book necessary!!

Capri...I am not trying to discredit your being a tire tech! Just saying, that like me, you, and others, none of us have the absolute last word on any subject.

While the OP did over inflate his tires, carrying a heavy load (camper) on tires too wide for his rims, it may have kept them cooler, with less squirm. May have improved handling? In any case, my opinion, and from experience, a proper sized tire for the rim size, is best choice.

Jerry





MFL

Midwest

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Posted: 12/04/20 10:39am Link  |  Quote  |  Print  |  Notify Moderator

BurbMan

While I am not experienced driving a heavy vehicle in that type sand, it appears that your psi choice is leaving a proper foot print. The pics are interesting, worth a thousand words! [emoticon]

Jerry

BenK

SF BayArea

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Posted: 12/04/20 10:49am Link  |  Quote  |  Print  |  Notify Moderator

Burbman...your sand compacts better than the stuff I normally run on.

The sand am used to would NOT leave such distinct tread pattern. It would fall apart, unless wet.

Wonder why east coast sand isn't rounded by eave action as much as out here on the west coast.

The 'apparent' diameter am talking about will on additional tread contact in length. Measured at the leading to trailing tread contact. That is more important, but bulge width and cupping also plays.

The minimual tread penetration on your current tires look very good, considering loaded with that camper n stuff.

Cleaning out the garage attic and found my old surf rods. Gave them away except for my first rod I made as a teen.

Fenwick fast taper and has been rebuild several times. About 12-13 feet with extra long handle and larger diameter cork.

Mainly strippers with occasion gulls hitting the metal spoon (Mickey Mouse, with a hulla skirt)...


-Ben Picture of my rig
1996 GMC SLT Suburban 3/4 ton K3500/7.4L/4:1/+150Kmiles orig owner...
1980 Chevy Silverado C10/long bed/"BUILT" 5.7L/3:73/1 ton helper springs/+329Kmiles, bought it from dad...
1998 Mazda B2500 (1/2 ton) pickup, 2nd owner...
Praise Dyno Brake equiped and all have "nose bleed" braking!
Previous trucks/offroaders: 40's Jeep restored in mid 60's / 69 DuneBuggy (approx +1K lb: VW pan/200hpCorvair: eng, cam, dual carb'w velocity stacks'n 18" runners, 4spd transaxle) made myself from ground up / 1970 Toyota FJ40 / 1973 K5 Blazer (2dr Tahoe, 1 ton axles front/rear, +255K miles when sold it)...
Sold the boat (looking for another): Trophy with twin 150's...
51 cylinders in household, what's yours?...

Grit dog

Black Diamond, WA

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Posted: 12/05/20 11:28am Link  |  Quote  |  Print  |  Notify Moderator

Sometimes it’s time to stop arguing mfl...


2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29

MFL

Midwest

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Posted: 12/06/20 10:15am Link  |  Quote  |  Print  |  Notify Moderator

Grit dog wrote:

Sometimes it’s time to stop arguing mfl...


Not arguing with you Grit, just added the reminder of misinformation you may have forgotten from the other member.[emoticon]

Cheers back at ya,

Jerry

Grit dog

Black Diamond, WA

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Posted: 12/07/20 11:40am Link  |  Quote  |  Print  |  Notify Moderator

MFL wrote:

Grit dog wrote:

Sometimes it’s time to stop arguing mfl...


Not arguing with you Grit, just added the reminder of misinformation you may have forgotten from the other member.[emoticon]

Cheers back at ya,

Jerry


Cheers to you too bud!
This whole discussion, not unlike many on here revolves around both facts and opinions. But the real difference of opinion, IMO, is...
Is information "bad" information if it doesn't completely idiot proof it for anyone reading it regardless of their personal skills, experience or competency?

Large MFGs "have" to idiot proof their products to the greatest extent possible, even if it means something not being ideal or the best for a given situation (classic case in point, the STUPID tire pressure monitor thresholds on 3/4 ton trucks). This was mandated by the NHTSA I'm sure, but point is, that it's wrong for all but a certain set of conditions.
No different than Capri's or my advice which is also correct for a certain situation and wrong for others.
My personal feeling is that anyone of average intelligence "should" be diligent enough to figure out basic things like the right tire pressure, but I have a great example of why this isn't the case.

Recently acquired a used truck, sitting on 37-12.50-20 tires. The previous owner, by all accounts is a very intelligent and mechanically inclined young man, as he is an engineer tech and supervisor at a machine shop and also a gear head.
He had the (fairly new and very expensive) tires on this truck set to basically the max pressure of 65psi on the front and 60 psi on the rear. The he was killing the tires, hurting the ride of the truck and actually driving with "less" traction than if he had the proper pressures. Tires new 19/32" tread. Fronts were 19 on the shoulder lugs and 16-17 in the middle. Rears were 18-19 on the shoulder lugs and 14-15 in the middle.
And he had NO clue that this was happening, nor that they didn't need that much air.
Fortunately, it's early enough I can bring these tires back into shape, but I never would have expected it out of this guy.

Grit dog

Black Diamond, WA

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Posted: 12/07/20 11:41am Link  |  Quote  |  Print  |  Notify Moderator

And he said that's what Les Schwab recommended since they couldn't hit the 80psi rear recommendation on the door sticker of the truck!


Of course they did! If I sold tires, I'd want people replacing tires as often as possible. Sounds like they are achieving their goal as well!

MFL

Midwest

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Posted: 12/07/20 01:32pm Link  |  Quote  |  Print  |  Notify Moderator

FYI, Grit dog, your posts are still not showing up till much later!

This one, below, took nearly two days. It likely was flagged, due to off topic, and your sometimes off color posts, many that I enjoy.

Grit dog wrote: Sometimes it’s time to stop arguing mfl...

Your last two posts, while interesting, are still a bit off topic, and may be reason for screening? I know...I'm off topic of thread subject right now. I do have to say that the OP did get his question answered, and even sent a PM to me, saying he appreciated my opinion. Nice fellow, always has good info to share!

I've been on this forum long enough to know whose info/opinion I would choose to follow. The internet is great, anyone can be who ever they pretend to be, or not! I don't consider you to be FOS (your words, not mine), but some folks tend to be more gullible than others.

PM me if you want to discuss further. I don't want to join the red flag list!

Jerry

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