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-   -   What's too big for gas. (https://www.irv2.com/forums/f59/whats-too-big-for-gas-489154.html)

tjmat 05-28-2020 05:59 PM

Agree with Our05Winneba
 
Our05Winneba captured my thoughts very well. For me, the initial price was the biggest factor. We wanted to get the best rig that suited our needs and was within budget. We accomplished that very well with the 2017 Jayco Precept at 32 feet (pre-Thor era) and towing a Ford Focus. We've had no problems at all with the power or reliability of the engine/chassis. Have to take some hills at 45 mph, but those are rare. An extra 15-20 minutes travel time every couple of thousand miles or so is not a big deal. My only complaint is the long overhang. I have to be careful going into some driveways or the hitch for the towbar can drag a bit.

Walt Graham 05-28-2020 06:30 PM

In the old days the only engine for even large trucks was gas but darn they had more cubic inches and had the torque at lower rpm than todays gas motors. As time progressed things changed and diesels took over as well as the type of transmissions. In some of todays over the road trucks you don't find a 14 speed manual but an automatic.... go figure !!!! I'm not sure if it's taste but you can find large boats with diesels and also a 40 foot center consul with 4 gas outboards.... maybe it's the need for speed.

Pixelbum 05-28-2020 07:12 PM

RV too big for gas?
 
Quote:

Originally Posted by kongmen (Post 5271964)
Can some of you tell me your opinions on what point is the RV too big for a gas engine? Thanks.

GOOD QUESTION! I'm sure you are going to be blasted with a LOT of opinions on
this one, so good luck! My only concern is if your wallet is
going to be BIG enuf to support a guzzling gas engine
pulling or pushing(?) that kind of weight around? Hate them
or love them, torquey Diesels are the engine of preference!
Ask any semi-trucker out there! Sorry...:anyone:?

UFO Pilot 05-28-2020 07:20 PM

Quote:

Originally Posted by Pixelbum (Post 5281922)
GOOD QUESTION! I'm sure you are going to be blasted with a LOT of opinions on
this one, so good luck! My only concern is if your wallet is
going to be BIG enuf to support a guzzling gas engine
pulling or pushing(?) that kind of weight around? Hate them
or love them, torquey Diesels are the engine of preference!
Ask any semi-trucker out there! Sorry...:anyone:?

I get around 7 MPG with my gas pusher and the money I saved upfront over a diesel has purchased a lot of gas. My oil & filter change cost me about $45, what does yours cost you?

NLOVNIT 05-28-2020 07:42 PM

Stick to the subject folks. This is NOT a diesel vs gas thread. Take that discussion to a new thread if you want to debate that.

Lori-

Unicorn Driver 05-28-2020 07:48 PM

Quote:

Originally Posted by Ray,IN (Post 5278104)
2008 37' gas pusher motorhome From what I have read, the main issue was lack of torque compared to the same HP diesel engine. You see the engine specs= HP and torque in that add, for comparison a 350 HP diesel engine has 1,000 lb/ft torque.

I have exact same coach :-)

Earl II 05-28-2020 08:21 PM

Gas
 
Nothing but my personal opinion.... no math involved. Ours is 31' 11" with the 3 valve V-10. I wouldn't buy anything over 34' with the gas engine and the GVW of the chassis. Only my personal opinion. We are pretty happy with our 3124 Bay Star and even towed the Jeep Wrangler up the Cajon Pass. Got over the pass at about 42 MPH at about 3500+ rpms. Going down the other way took some practice with the brakes, taking it off of TOW/HAUL so the rpms didn't run up over 4500.... A good trip. Seriously, if I were thinking of something longer and heavier I would have to accept that a diesel pusher would be safer, no cheaper, but safer. On a final note, this is our final Class A. Done spending more money.

Ukulele doc 05-28-2020 08:30 PM

34’8.1 workhorse
 
My 34-35 workhorse w22 5speed is a pleasure to drive and I tow a Honda Element. Oregon to Tucson trips no problems. Usually we go 150 - 350 mile trips. Use your gears ! Drive safe !

HDGoose 05-28-2020 08:39 PM

IMHO it depends on preference and how many miles you'll travel.



I just bought a new 2020 RAM 3500 diesel which will pull my next trailer just fine.

Lyndajo 05-28-2020 09:14 PM

Quote:

Originally Posted by Waiter21 (Post 5272403)
My 270hp F53 V10 with 4 speed works just fine on my 35 ft Southwind, 22k lbs gross when loaded.

I can't run up I-70 to the Eisenhower tunnel at the posted speed limit, but I get up there.

I have seen very few moving vehicles that can run up I-70 to the Eisenhower tunnel at the posted speed limit unless it was or is a motorcycle.:2funny:

Dany 05-29-2020 04:21 AM

Quote:

Originally Posted by Lyndajo (Post 5282126)
I have seen very few moving vehicles that can run up I-70 to the Eisenhower tunnel at the posted speed limit unless it was or is a motorcycle.:2funny:

Passed through this route last winter , I have. A v8 engine with 275 hp gasser, and I can tell you that not a truck or car passed me on the way up , but on the way down they other side de Diesel engine would have been great to slow me down, that being said my rig is 39 foot with a tag axle , and apart from the breaking power of a Diesel engine I find that the motor is good enough for my needs


That being said my main input would be that the important thing to remember is the different type of équipement ,
tag axle for extra weight capacity
Pneumatic suspension for added comfort
Pneumatic brake for added force of brake

To me if you have the right equipment to you size any size fits your needs

MEC57 05-29-2020 05:15 AM

38' Gasser does well
 
Have a 38' Southwind with a great Chevy V8. Pulls a Chevy Colorado and certainly costs me less than a DP to run and maintain. If I ever desire to move up in length, I'd consider a DP, but most likely won't move up. Just 2 of us using our MH.

I test drove a 40' DP and the difference in driveability was just not worth the extra short and long term cost. IMHO.

turbobill 05-29-2020 07:11 AM

Finally someone understands the diesels torque advantage is the turbocharger.........NOTHING ELSE!!! lol.


Besides Ford turbocharging a V6 truck engine, no one else is doing anything like that .....yet. A turbocharged gasoline big block would pull with the diesels and outrun the diesel in a horsepower race.


In the mid 80's, I turbocharged a Chevy 454 in a one ton, geared for low RPM's on the highway and got 50% better fuel mileage than the naturally aspirated 454/one tons and left them on the hills.....with the same loads.



Today's fuel/ignition technology with a turbo on a gasoline big block would be a better way to go as far as I'm concerned!

twinboat 05-29-2020 09:12 AM

Back in the day, turbochargers weren't always used on diesels. Lots of NA ( naturally aspirated ) diesel engines.

Most RV diesel generators are NA.

Its the cubic inch that makes torque. We had a bunch of NA 855 cubic inch Cummins that pulled 10 wheel garbage trucks everyday.

If you want long life, there is no replacement for displacement.


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