Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-03-2006, 02:27 PM   #1
Winnebago Master
 
John_Canfield's Avatar
 
Join Date: Jan 2005
Location: Back at the ranch
Posts: 2,041
Having acquired more stuff in the last few months (like the Howard Precision Center Steer and the SlideMaster), I was hot-to-trot to get the coach weighed again. We have weighed three previous times, but it was time to do it again.

We were weighed with: 100 gallons of diesel (full tank), 1/2 tank of water, 1/3 gray, 1/3 black tanks, and two people.

The numbers:

Steer axle: 12,140 <<-- yup.. over limit by 140 pounds, but no big deal (the tires and IFS are okay for this weight with no problem)

Drive axle: 19,720 <<-- yea! - we are under the 20K limit by 280 pounds

Gross weight: 31,860 <<-- We are under our gross limit by 140 pounds

It was time to dig out the air hose and increase the tire pressures. My Michelin charts indicated we needed 115 pounds in the front and 100 pounds in the rear. We are maxed out on the load carrying capacity of the Load Range "G" tires in the front - I would like to change them for Load Range "H" tires like Rudy Morris has done so I can run a lower tire pressure and have a softer ride.

After getting on the road today, I immediately noticed a difference due to carrying 115 pounds in the front (compared to the 105 we did have.) Road bumps were much more pronounced but the coach seemed more 'predictable' in high-speed curves without feeling that the body was leaning too much. I was always concerned because the coach seemed to lean too much in high-speed cornering. I have always tried to run the proper tire pressure in synchronization with the coach's weight, so I don't know why the coach feels more 'stable' in cornering situations now.

I did throw away about five pounds of stuff today and shifted some weight to the back, so maybe things are improved
__________________
--John

2005 Horizon 40AD, 2005 Jeep Liberty CRD
John_Canfield is offline   Reply With Quote
Old 05-03-2006, 02:27 PM   #2
Winnebago Master
 
John_Canfield's Avatar
 
Join Date: Jan 2005
Location: Back at the ranch
Posts: 2,041
Having acquired more stuff in the last few months (like the Howard Precision Center Steer and the SlideMaster), I was hot-to-trot to get the coach weighed again. We have weighed three previous times, but it was time to do it again.

We were weighed with: 100 gallons of diesel (full tank), 1/2 tank of water, 1/3 gray, 1/3 black tanks, and two people.

The numbers:

Steer axle: 12,140 &lt;&lt;-- yup.. over limit by 140 pounds, but no big deal (the tires and IFS are okay for this weight with no problem)

Drive axle: 19,720 &lt;&lt;-- yea! - we are under the 20K limit by 280 pounds

Gross weight: 31,860 &lt;&lt;-- We are under our gross limit by 140 pounds

It was time to dig out the air hose and increase the tire pressures. My Michelin charts indicated we needed 115 pounds in the front and 100 pounds in the rear. We are maxed out on the load carrying capacity of the Load Range "G" tires in the front - I would like to change them for Load Range "H" tires like Rudy Morris has done so I can run a lower tire pressure and have a softer ride.

After getting on the road today, I immediately noticed a difference due to carrying 115 pounds in the front (compared to the 105 we did have.) Road bumps were much more pronounced but the coach seemed more 'predictable' in high-speed curves without feeling that the body was leaning too much. I was always concerned because the coach seemed to lean too much in high-speed cornering. I have always tried to run the proper tire pressure in synchronization with the coach's weight, so I don't know why the coach feels more 'stable' in cornering situations now.

I did throw away about five pounds of stuff today and shifted some weight to the back, so maybe things are improved
__________________
--John

2005 Horizon 40AD, 2005 Jeep Liberty CRD
John_Canfield is offline   Reply With Quote
Old 05-03-2006, 02:37 PM   #3
Winnebago Owner
 
AdrianLee's Avatar
 
Join Date: Feb 2006
Location: Wherever we are parked today
Posts: 220
John - 5lbs????? Maybe it did help?????

It is weird - you are having exactly the opposite results from my dropping down to 105psi.

Strange
__________________
Adrian & Barbara

2006 Itasca Ellipse 40FD
AdrianLee is offline   Reply With Quote
Old 05-03-2006, 02:47 PM   #4
Administrator Emeritus
 
Join Date: Dec 2003
Location: Virginia Beach, VA
Posts: 1,319
John,
Funny that you and I discussed the high center of gravity issue while in Forest City and you may have found a cure....On the way home,Jim even commented about the seemingly high center...
rebelsbeach is offline   Reply With Quote
Old 05-04-2006, 04:13 AM   #5
Winnebago Master
 
tderonne's Avatar
 
Join Date: Dec 2003
Location: Motor City, Mich
Posts: 719
Just going to have to stop adding toys!
__________________
Tim.

tderonne is offline   Reply With Quote
Old 05-04-2006, 04:50 AM   #6
Winnie-Wise
 
Cruzer's Avatar
 
Join Date: Oct 2002
Location: Sheboygan, WI
Posts: 306
You could fill the front tires with helium.
__________________
Mark & Leann Quasius
2016 Cornerstone 45A
2007 Allegro Bus 42QRP (Sold)
2012 Jeep Wrangler Unlimited - Rubicon
Cruzer is offline   Reply With Quote
Old 05-04-2006, 06:26 AM   #7
Registered User
 
Join Date: Jun 2005
Posts: 729
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Steer axle: 12,140 &lt;&lt;-- yup.. over limit by 140 pounds, but no big deal (the tires and IFS are okay for this weight with no problem) </div></BLOCKQUOTE>

John....I am just curious why this would be no big deal.

Sounds like a BIG diet is in order...
FrontRangeRVer is offline   Reply With Quote
Old 05-04-2006, 10:24 AM   #8
Winnebago Camper
 
JanBCarter's Avatar
 
Join Date: Jul 2005
Location: Northern California
Posts: 43
I go along with FrontRanger, John. Axle ratings aren't just the axles, tires & suspension, but all the components...brakes, spindles, bearings, etc. The manufacturers "axle rating" takes this all into account as the chain is only as strong as its weakest link. From your conscientious posts, I would have figured you for a little more conservative, and not wanting to live with "loaded to the max". Certainly just upgrading to "H" rated tires only infringes on your margin of safety, and I'd go there with caution. Keep up the great posts. We love to hear from you.
__________________
J.B. & B.J. Carter

& Raleigh the Cavalier Wonder Dog Navigator
JanBCarter is offline   Reply With Quote
Old 05-04-2006, 11:36 AM   #9
Administrator Emeritus
 
Join Date: Dec 2003
Location: Virginia Beach, VA
Posts: 1,319
Correct me if I'm wrong,but isn't the rise in GVWR for 2006 in my Vectra solely because I have "H" rated tires and the 2005 Vectra does not?
rebelsbeach is offline   Reply With Quote
Old 05-04-2006, 11:38 AM   #10
Winnie-Wise
 
Cruzer's Avatar
 
Join Date: Oct 2002
Location: Sheboygan, WI
Posts: 306
John, The Allegro Bus with Freightliner chassis has a 12,000 rating on the solid front axle but 14,440 on the IFS. I'm thinking that you probably have the same IFS as the Bus, seeing as how they are both Freightliners and recent years. Have you investigated as to why it's only 12K? I would think that the only difference would be the tires. If the hardware is indeed different, that's another story. I know the GVW of the Bus was raised the year that the XRVs were no longer used and the XZE tires were used. Other than that, the axles and air bags were the same.
__________________
Mark & Leann Quasius
2016 Cornerstone 45A
2007 Allegro Bus 42QRP (Sold)
2012 Jeep Wrangler Unlimited - Rubicon
Cruzer is offline   Reply With Quote
Old 05-04-2006, 11:50 AM   #11
Administrator Emeritus
 
Join Date: Dec 2003
Location: Virginia Beach, VA
Posts: 1,319
Just my thinking as well Mark....must have posted at the same time.
rebelsbeach is offline   Reply With Quote
Old 05-04-2006, 01:26 PM   #12
Winnebago Master
 
John_Canfield's Avatar
 
Join Date: Jan 2005
Location: Back at the ranch
Posts: 2,041
Rudy Morris, webmaster and an officer of the Freightliner Chassis Owner's Club (FCOC) owns an '04 Vectra and was maxed out on the front axle like me. A few weeks ago I started a thread on the FCOC forum about how Winnie uprated the IFS on the 2006 Horizon/Vectra from 12K to 14+K.

Rudy got interested in the uprate and started making phone calls - he called Winnebago, Freightliner and made several calls to ZF (the front suspension supplier). To summarize the investigation results:

-The uprate was accomplished by going to Load Range H tires

-The ZF-IFS suspension was tested to 16,000 pounds and the 2004/5/6 versions are essentially the same

-The steering box is different on the '06 Vectra/Horizon to accomodiate another 2,000 pounds load.

-Brakes, everything else is the same

What all of this means to Rudy (and me) is that we can safely 'play around' somewhat with the 12k limit by going to load range H tires. Even though I am technically over the placarded 12,000 pound limit, the tires are okay with the weight according to Michelin and there is no doubt in my mind that the suspension can safely handle a few extra pounds.

I do not think it would be prudent to add several hundred extra pounds on the front axle, but I'm fine going over one or two hundred pounds depending on the tire rating.

Rudy went to Load Range H tires on his coach so he can run them at a lower pressure - I think he said he went from 115 pounds on Load Range G to 90 with the Load Range H.
__________________
--John

2005 Horizon 40AD, 2005 Jeep Liberty CRD
John_Canfield is offline   Reply With Quote
Old 05-04-2006, 07:31 PM   #13
Winnebago Master
 
tderonne's Avatar
 
Join Date: Dec 2003
Location: Motor City, Mich
Posts: 719
1% of 12,000 is 120 pounds. I doubt any scales any of us would use are even that accurate...
__________________
Tim.

tderonne is offline   Reply With Quote
Old 05-05-2006, 09:04 PM   #14
Winnie-Wise
 
vicsryd's Avatar
 
Join Date: Apr 2005
Location: Vancouver, Washington
Posts: 383
Send a message via Yahoo to vicsryd
To paraphrase RVSEF (RV Safety Education Foundation) as heard at a recent rally, exceeding gross weight and tire ratings even by one pound isn't just about safety it's about legality.

If for some reason you are stopped and weighed by the state partrol (out West CHP and WASP carry portable scales in some of their vehicles) and you are over the axle/chassis rating then they most likely will write you a ticket. My understanding is these tickets start at $250 ang go up, way up.

If you are in an accident and cause property damage or worse to others and the lawyers determine you were criminally negligent by being over a certified weight on an axle or tire then they will own you. This is regardless of whether or not there was a axle/tire related failure caused the accident.

Even if you technically increase the actual load carrying capacity (e.g. increasing the load range of the tires as discussed in this thread) only the chassis manufacturer can change the legal weight rating as specified on the plate in the driver's area.

This said, does anyone know if Freightliner offers a factory program to retrofit and legally increase load capacity based on later model year improvements?
__________________
Vicki & Jon Pritchard
05 Journey 34H - CAT C7 - Toyota RAV4
3 doxies, 1 chihuahua - WIT, Escapees, FMCA

vicsryd is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Weighed Coach NOW WHAT?????? D Lindy Winnebago Lifestyle 52 09-29-2013 03:58 PM
Vectra on a diet Wicked Whippets Winnebago Class A Motorhomes 7 07-11-2009 01:45 PM
Weighed the coach today! John_Canfield Winnebago Lifestyle 17 03-07-2006 03:03 PM

» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:50 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.