Despite the comment at 0:53, all modern shock absorbers (properly called suspension dampers) are telescopic hydraulic type - "liquid" shock is not an alternative to "gas shock". What "gas shock" means is that the fluid is kept under pressure (referred to here as "back pressure") by trapped gas (nitrogen) at higher than atmospheric pressure. All monotube shocks are gas pressurized; the alternative is no gas in the working tube, and an extra outer tube (thus "twin tube") as a reservoir. There must be either a gas cushion or outer reservoir to accommodate the change in volume inside the working cylinder as the piston strokes in and out. So the choices are: twin tube, or gas-pressurized monotube. The gas pressure does avoid foaming of the fluid, so it is beneficial. Just as importantly, and not mentioned in the video, is that the monotube design exposes the outside of the working cylinder's tube to ambient air for cooling, while the twin-tube has the reservoir around the outside causing less direct cooling. I don't think that this account manager understands the technology - he has only memorized some of the advantages for marketing.
Thanks for the great information. We currently own a 2007 Newmar Essex on Spartan chassis that we purchasedused in 2018. We attended Spartan Acmedy in june of 2019 and I learned so much about the care and feeding of my chassis!! The most important thing I learned were a few quick roadside repairs I could do to get moving quickly and not have to wait for a tow truck! Me wife loved the driver's training and now is comfortable driving our 45' home on wheels! We are purchasing a 2021 New Air and have ordered it on a Spartan chassis mostly due to the outstanding experience at Spartan Academy and customer service I have received from phone calls to Spartan Motors! Say hi to Big Mike and all your staff for us!
i know im randomly asking but does anybody know a method to get back into an instagram account?? I somehow lost my login password. I would appreciate any tips you can give me!
@Bowen Jake thanks so much for your reply. I found the site through google and I'm trying it out atm. I see it takes a while so I will reply here later with my results.
The Roadmaster Chassis by Country Coach from the 2000s is by far still is the best chassis in terms of ride quality, handling, driving dynamic, stiffness, reduced boydy flexibility, rigidity, weight handling
Joel, been hunting for the difference between Spartan and your competition. ON the Brochures all the specs listed are the exact same for both chassis, so I kept asking, so why the price difference, it is substantial. The search that got me to this video finally got me the answers I've been looking for. Don't know if the price is worth the difference yet, but I know I'll be looking for the Spartan chassis when buying. Thanks for the great, informative video.
The comparison of frame rail thickness is interesting, but not very useful. One issue is that it seems unlikely that all chassis models from any chassis manufacturer use the same thickness of frame rail... so what is being compared to what? The other and more significant issue is that thickness is just one of three frame rail dimensions which are all important: thickness, flange width, and web height. The yield strength of the steel is also important, and not mentioned. For instance, in a quick web search I found a spec sheet for a 2006 Freightliner XC that gave dimensions of 9" x 2.75" x .25", and another spec sheet for a 2013 Freightliner XCS that gave dimensions of 9-1/8" x 2.81" x 5/16" (which is thicker than this video claims). If you are going to compare only one specification value, it should be RBM (resistant bending moment), which is the result of all of the dimensions and the yield stress.
The comparisons are between Spartan and "the other manufacturer" (Freightliner), not between the Spartan for Newmar and the Spartan for everyone else (Entegra, Foretravel, and Jayco).
Why only a six speed still? The last Diesel pusher I drove, the gear ratio spread was too wide and it would shift at the redline and put the engine under its power band, making hill climbs a very slow endeavor.
They use Allison transmissions, which are the only readily available automatic transmission line in the medium-duty market... and Allisons are only six-speeds. Check any medium-duty truck from common manufacturers such as Peterbilt/Kenworth and Freightliner... they have 6-speed Allisons. They are using a Cummins X15 engine. At that size it would make sense to use a heavy truck automatic, often called an AMT (for "Automated Manual Transmission"), typically from Eaton. I assume that's just a cost issue. The most similar commercial vehicle to a diesel pusher motorhome is a large bus. Prevost, for instance, used Allison transmissions until they were purchased by Volvo and switched to Volvo's heavy truck I-Shift automatic (AMT).
Despite the comment at 0:53, all modern shock absorbers (properly called suspension dampers) are telescopic hydraulic type - "liquid" shock is not an alternative to "gas shock".
What "gas shock" means is that the fluid is kept under pressure (referred to here as "back pressure") by trapped gas (nitrogen) at higher than atmospheric pressure. All monotube shocks are gas pressurized; the alternative is no gas in the working tube, and an extra outer tube (thus "twin tube") as a reservoir. There must be either a gas cushion or outer reservoir to accommodate the change in volume inside the working cylinder as the piston strokes in and out. So the choices are:
twin tube, or
gas-pressurized monotube.
The gas pressure does avoid foaming of the fluid, so it is beneficial. Just as importantly, and not mentioned in the video, is that the monotube design exposes the outside of the working cylinder's tube to ambient air for cooling, while the twin-tube has the reservoir around the outside causing less direct cooling.
I don't think that this account manager understands the technology - he has only memorized some of the advantages for marketing.
Thanks for the great information.
We currently own a 2007 Newmar Essex on Spartan chassis that we purchasedused in 2018. We attended Spartan Acmedy in june of 2019 and I learned so much about the care and feeding of my chassis!! The most important thing I learned were a few quick roadside repairs I could do to get moving quickly and not have to wait for a tow truck!
Me wife loved the driver's training and now is comfortable driving our 45' home on wheels!
We are purchasing a 2021 New Air and have ordered it on a Spartan chassis mostly due to the outstanding experience at Spartan Academy and customer service I have received from phone calls to Spartan Motors!
Say hi to Big Mike and all your staff for us!
We have a fleetwood 2005 on a Spartan Chassis. We love our ride.
Amazing video Joel! Thank you, so happy to see the continued commitment for excellence between Spartan and Newmar.
i know im randomly asking but does anybody know a method to get back into an instagram account??
I somehow lost my login password. I would appreciate any tips you can give me!
@Dash Phillip Instablaster =)
@Bowen Jake thanks so much for your reply. I found the site through google and I'm trying it out atm.
I see it takes a while so I will reply here later with my results.
@Bowen Jake it did the trick and I actually got access to my account again. I'm so happy:D
Thanks so much, you really help me out !
@Dash Phillip No problem :)
one thing I would like to see on the engine is a button to release the tension on the belts when you lose a belt you can replace the belt easier
IFS on the short chassis or solid axle?
Way to go Mr. Joel. You sound like one of those TeleEvangelist preachers. love the video. And Newmar is in my top upper top 5.
Great video, You guys have sold me on Spartan...
The Roadmaster Chassis by Country Coach from the 2000s is by far still is the best chassis in terms of ride quality, handling, driving dynamic, stiffness, reduced boydy flexibility, rigidity, weight handling
Joel, been hunting for the difference between Spartan and your competition. ON the Brochures all the specs listed are the exact same for both chassis, so I kept asking, so why the price difference, it is substantial.
The search that got me to this video finally got me the answers I've been looking for.
Don't know if the price is worth the difference yet, but I know I'll be looking for the Spartan chassis when buying. Thanks for the great, informative video.
Something to consider...The price difference is just 1-2%
Can't wait to get our New Aire 3541 and beat feet up to Charlotte to for Spartan academy , then over to Nappanee .
Lets not forget the stop at MasterTech for the Solar and Lithionics package up there in N. Indiana as well.
@@douglaslaurell8889 Nope that stuff is overrated. We will be fine Burning that Beautiful Carbon .
The car dragged behind a motorhome is a " *towed* vehicle", not a " _tow_ vehicle".
The comparison of frame rail thickness is interesting, but not very useful.
One issue is that it seems unlikely that all chassis models from any chassis manufacturer use the same thickness of frame rail... so what is being compared to what?
The other and more significant issue is that thickness is just one of three frame rail dimensions which are all important: thickness, flange width, and web height. The yield strength of the steel is also important, and not mentioned.
For instance, in a quick web search I found a spec sheet for a 2006 Freightliner XC that gave dimensions of 9" x 2.75" x .25", and another spec sheet for a 2013 Freightliner XCS that gave dimensions of 9-1/8" x 2.81" x 5/16" (which is thicker than this video claims). If you are going to compare only one specification value, it should be RBM (resistant bending
moment), which is the result of all of the dimensions and the yield stress.
Nice video. We prefer Koni shocks on our Spartan Mountain Master. Thank you.
So do the other manufactures that use Spartan Chassis get sub par chassis? Is Newmar the only ones who get the best chassis?
Yes
@@joedwc 😂😂😂
Spartan makes high quality Custom chassis for all of their customers. This video just happens to be specific to Newmar.
The comparisons are between Spartan and "the other manufacturer" (Freightliner), not between the Spartan for Newmar and the Spartan for everyone else (Entegra, Foretravel, and Jayco).
Leaning toward a Foretravel versus a King Aire as I under stand the K4 is "boxed" a good bit, the K3 not so. Disabuse me of this notion.
Why only a six speed still? The last Diesel pusher I drove, the gear ratio spread was too wide and it would shift at the redline and put the engine under its power band, making hill climbs a very slow endeavor.
They use Allison transmissions, which are the only readily available automatic transmission line in the medium-duty market... and Allisons are only six-speeds. Check any medium-duty truck from common manufacturers such as Peterbilt/Kenworth and Freightliner... they have 6-speed Allisons.
They are using a Cummins X15 engine. At that size it would make sense to use a heavy truck automatic, often called an AMT (for "Automated Manual Transmission"), typically from Eaton. I assume that's just a cost issue.
The most similar commercial vehicle to a diesel pusher motorhome is a large bus. Prevost, for instance, used Allison transmissions until they were purchased by Volvo and switched to Volvo's heavy truck I-Shift automatic (AMT).
It would be "Newmar built on a Spartan", not "Spartan built on a Newmar" as he said.
Nice. But I love my Maxum Chassis
That math ain’t mathin on frame thickness increase
What doesn't make sense to you? 3/8" is 50% thicker than 1/4" (or 2/8", if that makes it easier for you).
Pants are a tad tight …😂🎉