Tire pressure question.

dazk14

Ensign
Joined
Jul 22, 2008
Messages
966
Re: Tire pressure question.

[QUOTE, I keep tire pressures 5lbs below the maximum.

I have ran it once in the heat of the day and had 3 blowouts, when done at night not one, I can't say that tire pressures had much to do with it,

I think the problem is simply too much heat built up in the rubber I suppose it should be stated that I haul butt, posted limits of course,

I see no reason to take it easy on long trips get there and relax is my way, I don't want to be on the road I want to be on the lake.[/QUOTE]





I think you just made the point...5lbs below max pressure, builds up HEAT, the higher the speed = MORE heat. A Hot day and you need every factor of safety you can get.

We've switched over to Kumho 857's in the shop and have solved a lot of 14" tire problems(only available in 14"). MORE load carrying capacity and Qspeed rated.

They are a little taller, so check clearance.
 

JimS123

Fleet Admiral
Joined
Jul 27, 2007
Messages
8,234
Re: Tire pressure question.

:rolleyes:Seems to me Lipp, unless you change tires as fast as a Nascar pit crew, the time it takes to change 3 tires is about equal to slowing down to 65-70. And slowing down seems a hell of a lot cheaper at $100 each for radial trailer tires...Just sayin..:facepalm:

I personally have never had a blowout in ANY tire, be it car or trailer. But then again, I drive sensibly.

Only once did I see someone else have a blowout. I was driving the posted speed limit (65) pulling my boat trailer. My wife was ahead of me (pulling the jetski) and my son behind pulling his boat. A guy passed us doing probably 80 pulling his boat. Three car lengths ahead his tire blew, causing a jack knife, which took out the car he was passing. Soooo, 2 cars and a trailer in the ditch. By the grace of God he didn't hit one of us, and thankfully the family in the other car was safe.

Go as fast as you want and blow as many tires as you want. Just be man enough to step up to the plate when you hurt somebody becaue of stupidity.
 

dazk14

Ensign
Joined
Jul 22, 2008
Messages
966
Re: Tire pressure question.

Trailer tires run on the ragged edge. The rating is the MAXIMUM load - not an ideal load. You talk trailer tires and BLOWOUTS are always the topic of conversation - and rightly so - blowouts are a HUGE HAZARD - THE hazard.

All else pales in comparison. Tandem axles scrub and are often horrendously aligned = HEAT, flat spots will POUND a tire = heat, there are countless more variables, but Dopes will spout that a margin of error is unnecessary - ridiculous.

Tire tread wear as a cost...on an F'ing boat that gets 3 miles a gallon downwind? Higher pressures put less strain on the tow vehicle and yield better mpg - put the savings toward your imagined lost in tread life. How many passenger car tires recommend they be tossed out every 3 or 4 years.

There isn't a single Boat Shop that would debate the aforementioned.

Are there times when less pressure will do no harm? Of course, but think slower speeds, shorter distances, lots of weight factor of safety.

For the the average boater (95% of this board) and those tuning in, these talks can be VERY dangerous.
 
Last edited:

smokeonthewater

Fleet Admiral
Joined
Dec 3, 2009
Messages
9,838
Re: Tire pressure question.

you are WAY out in left field..... calm down and read it again AFTER reading the posts above in which people suggested running less pressure for a soft ride..... OF COURSE a safe margin is a good thing BUT a trailer tire rated for 2300 lbs at 80 psi is NOT rated for ANY weight at ANY other pressure.... the tire is designed to run at that pressure with that load or less.... Your reply has nothing to do with anything I actually said.....

My point is that those folks who so often post up that they have a 200 lb boat on tires rated for 4000 lbs and think they should run less pressure are wrong.... if the trailer is so over rated for the load that they perceive it to ride too rough then the trailer, tires, springs, should be downsized instead of pulling it around on low tires. Low pressure is NOT a fix for mismatched equipment.
 

bigdee

Commander
Joined
Jul 27, 2006
Messages
2,667
Re: Tire pressure question.

you are WAY out in left field..... calm down and read it again AFTER reading the posts above in which people suggested running less pressure for a soft ride..... OF COURSE a safe margin is a good thing BUT a trailer tire rated for 2300 lbs at 80 psi is NOT rated for ANY weight at ANY other pressure.... the tire is designed to run at that pressure with that load or less.... Your reply has nothing to do with anything I actually said.....

My point is that those folks who so often post up that they have a 200 lb boat on tires rated for 4000 lbs and think they should run less pressure are wrong.... if the trailer is so over rated for the load that they perceive it to ride too rough then the trailer, tires, springs, should be downsized instead of pulling it around on low tires. Low pressure is NOT a fix for mismatched equipment.

Amen.......and I totaly agree.........life would be so much simpler if people would just follow the recommendation and let it go! I set it at max and forget it.....I would rather be obsessed with fishing than tire pressure.
 

cyclops2

Banned
Joined
Apr 19, 2011
Messages
1,237
Re: Tire pressure question.

Do what I did.

Call your tire MANUFACTURER. No local sales people !!!!

Ask for technical service. Takes a few people. Then ask the engineer if you are going to NOT USE THE full rated capacity of the trailer what should you do for different % of the tires rated capacity ????
MOOO HHAA HA

Ask any tire company the same question about using your car tires on different weighted car.

More MOOO HHAAA HA
 

impatico

Petty Officer 2nd Class
Joined
May 24, 2010
Messages
184
Re: Tire pressure question.

you are WAY out in left field..... calm down and read it again AFTER reading the posts above in which people suggested running less pressure for a soft ride..... OF COURSE a safe margin is a good thing BUT a trailer tire rated for 2300 lbs at 80 psi is NOT rated for ANY weight at ANY other pressure.... the tire is designed to run at that pressure with that load or less.... Your reply has nothing to do with anything I actually said.....

My point is that those folks who so often post up that they have a 200 lb boat on tires rated for 4000 lbs and think they should run less pressure are wrong.... if the trailer is so over rated for the load that they perceive it to ride too rough then the trailer, tires, springs, should be downsized instead of pulling it around on low tires. Low pressure is NOT a fix for mismatched equipment.

maybe this will help you
http://www.discounttire.com/dtcs/infoTrailerTireFacts.dos

but of course remember if you are supposed to have B/4 ply and decided to go up to D/8 ply tires to be stronger than this info will not work. you can run your trailer tires at 5-10 under max pressure depending what max is if you went a load range above what OEM reccomends.

as I said earlier, I have put tires on roughly 100-250 trailers of all kinds, and I always look for a placard. when i find one they always say the max pressure for the OEM load ranged tire
 

Thalasso

Commander
Joined
Jan 18, 2011
Messages
2,879
Re: Tire pressure question.

Where are you planning on going? Are you looking at Mead or Powell? If so then here is what I do, and get ready your going to buy some tires so just get used to it, I have gone to Powell from Denver 3 times now love the lake, but its a trip that eats tires last time I had three blowouts on the trip, so now I carry 3 spares, I check pressure and my buddie bearings on each fuel stop/bathroom break, I keep tire pressures 5lbs below the maximum. I have found that on long trips like this (about 500 miles across the desert in the heat of the summer) that if you can travel at night you will ease the wear and tear on the tires, ran it once in the heat of the day and had 3 blowouts, when done at night not one, I can't say that tire pressures had much to do with it, I think the problem is simply too much heat built up in the rubber, I have several friends that go to powell from grand junction roughly half the distance I travel and they are the ones that told me to either have three spares or travel at night, so now I do both.

I suppose it should be stated that I haul butt, posted limits of course, I see no reason to take it easy on long trips get there and relax is my way, I don't want to be on the road I want to be on the lake.

Run those tires at max. Below max you are creating to much heat. This is one of the reasons you go through so many tires.
( under inflation )
 

cyclops2

Banned
Joined
Apr 19, 2011
Messages
1,237
Re: Tire pressure question.

I will be sure to NEVER buy tires from Discount tire.

The VERY GOOD ... AUTO...tires on my small 1,000 pound trailer carrying the 16' Lowe Aluminum & a 9.9 hp motor have racked up 6,600miles at interstate speeds of 55 to 65 mph during 6.5 hour runs. Over a 15 year period.
I use Michilen tires & adjust the pressure after 15 minutes or the nearest air pump.

I am dead 3 times & do not know enough to jump into the casket for a burial. My car tires last 40 to 60,000 miles.

Rich
 

dazk14

Ensign
Joined
Jul 22, 2008
Messages
966
Re: Tire pressure question.

you are WAY out in left field..... calm down and read it again AFTER reading the posts above in which people suggested running less pressure for a soft ride..... OF COURSE a safe margin is a good thing BUT a trailer tire rated for 2300 lbs at 80 psi is NOT rated for ANY weight at ANY other pressure.... the tire is designed to run at that pressure with that load or less.... Your reply has nothing to do with anything I actually said.....

My point is that those folks who so often post up that they have a 200 lb boat on tires rated for 4000 lbs and think they should run less pressure are wrong.... if the trailer is so over rated for the load that they perceive it to ride too rough then the trailer, tires, springs, should be downsized instead of pulling it around on low tires. Low pressure is NOT a fix for mismatched equipment.


It wasn't my intention to flame you and I've removed your previous verbiage from my post. The majority of what I wrote was replying to "Others" previous posts.
 

impatico

Petty Officer 2nd Class
Joined
May 24, 2010
Messages
184
Re: Tire pressure question.

I will be sure to NEVER buy tires from Discount tire.

The VERY GOOD ... AUTO...tires on my small 1,000 pound trailer carrying the 16' Lowe Aluminum & a 9.9 hp motor have racked up 6,600miles at interstate speeds of 55 to 65 mph during 6.5 hour runs. Over a 15 year period.
I use Michilen tires & adjust the pressure after 15 minutes or the nearest air pump.
I am dead 3 times & do not know enough to jump into the casket for a burial. My car tires last 40 to 60,000 miles.

Rich
I've never heard on Discount tire, figured it was a big USA tire company, but if your tires are 15 years old change them, and in a lot of cases proper trailer tires are cheaper or right around the same price, also they don't make certain trailer sizes in a passenger tire so you can't mix them up, so you probably don't have the OEM size if you care about that

This is from goodyear...
tire chart.jpg
 

LippCJ7

Vice Admiral
Joined
Sep 20, 2010
Messages
5,431
Re: Tire pressure question.

I've never heard on Discount tire, figured it was a big USA tire company, but if your tires are 15 years old change them, and in a lot of cases proper trailer tires are cheaper or right around the same price, also they don't make certain trailer sizes in a passenger tire so you can't mix them up, so you probably don't have the OEM size if you care about that

This is from goodyear...
View attachment 128249

I have Marathons now and have the Big O equivalent for my spares (just the way it worked out) I don't really mind since they will warranty them now, Big O and Discount are pretty wide spread tire stores very common in Colorado and Utah so thats why I do business with them both, as for OEM I'm not sure what was OEM on my trailer all I know is whats on it now so thats what I have been going with. I can't go bigger I just don't have room for them so I need to stick with a 215 just to make sure I have room for them

As for Discount tire, they have been very good to me so long as you realize they are a tire retailer not a manufacturer, I have always had good luck with them and they price match so they are hard to beat, I deal with Big O because they typically do more then just tires but they also do tires, just depends on your situation to me....

I think one of the things that people forget though is that I am not by any means hauling a garden variety Boat either, its a 25' Crownline and in case you didn't know that's a really heavy boat!! I know that every one has a different opinion but I can tell you I know at least four other people that go to Powell from Grand Junction Colorado(a couple haul bass boats so really lite in comparison to mine) and they all have the same solution, its not just the tires, its the road, the air temp, the tire temp its just the way it is, bring spares...

And I don't have one of my tires older then 3 years old now LOL
 

impatico

Petty Officer 2nd Class
Joined
May 24, 2010
Messages
184
Re: Tire pressure question.

up here the logging roads are kept up very well as we are a logging town, guess you can't complain to anyone about the roads? logging companies get paid by the government up here when working on public access roads.
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,581
Re: Tire pressure question.

And I don't have one of my tires older then 3 years old now LOL
Totally agree. My 5 year old radial trailer tires were failing on my drive from Tahoe this year. One got a huge bubble and tread started seperating. I found one replacement at a tire store on the way home. By the time I got home 2 others had the same issue. I was going to replace them at the end of the year anyway but figured they would make it through the 5th year.

Someone who keeps a tire 15 years is penny wise pound foolish.
 

impatico

Petty Officer 2nd Class
Joined
May 24, 2010
Messages
184
Re: Tire pressure question.

Totally agree. My 5 year old radial trailer tires were failing on my drive from Tahoe this year. One got a huge bubble and tread started seperating. I found one replacement at a tire store on the way home. By the time I got home 2 others had the same issue. I was going to replace them at the end of the year anyway but figured they would make it through the 5th year.

Someone who keeps a tire 15 years is penny wise pound foolish.

all depends on the tire, I have seen skidder tires in good shape and still very safe that are older than most people on this board lol but nowadays tires are car tires are designed to last 3 years trailer tires are more though
 

cyclops2

Banned
Joined
Apr 19, 2011
Messages
1,237
Re: Tire pressure question.

Bruce

I went to the Discount Tire web site & read what they reccommended about tire life.
5,500 mile or 5 years. Change them.

Hate to buy car tires there. I would need 5 sets every year.

Guys. I am not running on those old tires again. I have not used those tires in 15 + 10 = 25 years. I see the rubber is weather checking. :eek:
I have the marina do the in - out routine now.
I never had the Michilen tires heat up or the bearings heat up on the interstate. I would always check every 1 to 2 hours on the interstate.

I did loose a car front wheel bearing at 2 am 1 night after fishing. That was not fun.

Rich
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,581
Re: Tire pressure question.

I went to the Discount Tire web site & read what they reccommended about tire life.
5,500 mile or 5 years. Change them.
Please show me where they said to change the tires after 5,500 miles. 5 years I totally agree.

Also, Michelin does not make trailer tires last time I looked.
 

cyclops2

Banned
Joined
Apr 19, 2011
Messages
1,237
Re: Tire pressure question.

Bruce

I am slightly in error. medication time.

They said. 5,000 to 12,000 miles. Love to see how they cooked up those numbers with so many brands & DOT ratings available. Must have a hell of a test place somewhere.

They said to change every 3 to 4 years. I was wrong again. Love to see how they ran those tests also.

Tire joints SELL tires. They do not have to be honest about anything they say.

Go to the Tirerack & read their facts about differences of auto & trailer tires.

Who is correct?
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,581
Re: Tire pressure question.

They said. 5,000 to 12,000 miles. Love to see how they cooked up those numbers with so many brands & DOT ratings available. Must have a hell of a test place somewhere.
No, they said trailer tire tread life can vary between 5,000 miles and 12,000 miles. Said nothing about tread life on car tires which you were referring to before and also said nothing about replacing them at those intervals on a trailer. Just was stating how long tread usually lasted. Most people get to the 5 year mark way before tread wears out on a trailer tire.
 
Top