Engine differences March 28, 2003, 10:53:42 am Yahoo Message Number: 20417Hi All,I am looking at the 22' and 23.5' LD's. With all this recent discussion regarding mileage and how long a properly care for engine will last, I was wondering what the various engines used in this size are. Are there some that are better than others (ie last longer, more efficient and more horsepower)? If you had a choice of engines, what would it be?Thanks, Kevin
Re: [Life With A Lazy Daze RV] Engine differences Reply #1 – March 30, 2003, 11:20:30 pm Yahoo Message Number: 20530I don't know the consensus, but I can tell you that I have 1995 22" with 454 and I couldn't be happier. It has lots of get up and go and runs quiet as can be. To top it off I just got 11 mpg with full water tanks driving over mountain passes from Lone Pine CA to Reno. I believe the fuel injected big block V8's or the new V10 in the newer years is more desirable than a small block V8 (particulary older years that are carbureted) due to weight and wind resistance issues. They don't have to work as hard and seem to get better mileage. The trade off is they command higher prices so are more expensive to buy used.Hope that helps,Todd Tresidder
Re: [Life With A Lazy Daze RV] Engine differences Reply #2 – March 31, 2003, 06:39:28 pm Yahoo Message Number: 20566"I believe the fuel injected big block V8's or the new V10 in the newer years is more desirable than a small block V8...due to weight and wind resistance issues." V10 engine blocks have lower wind resistance than V8s? Boy, you learn something every day!(Sorry, couldn't resist! ;-)Andy Baird :-)
Re: [Life With A Lazy Daze RV] Engine differences Reply #3 – April 01, 2003, 08:08:00 am Yahoo Message Number: 20586Quote V10 engine blocks have lower wind resistance than V8s? Boy, you learn something every day!(Sorry, couldn't resist! ;-) Sorry for not being more thorough in my explanation. Clearly the above statement is nonsense and a V8 or V10 has nothing to do with wind resistance. Rather, high wind resistance and large weight on a motor home create an environment where big block V8 and v10 become a desirable commodity as opposed to a small block V8. Also, the newer, more efficient engines with features including but not limited to fuel injection (as opposed to carburetor) are also desirable but command measurable higher prices in the used market. While I am not an automotive engineer, I would think there is some formula showing desirable levels of power and torque as a ratio of wind resistance and weight factors. Maybe the engineers in the group could help out with that. All I was trying to do was give an intuitively obvious opinion of a subject that could be technically shown. Also, the gas mileage data, used market sales data, and discussions regarding how well the various engine configurations perform and what limitations are experienced support this.Hope that helps clarify the miscommunication,Todd T.[Non-text portions of this message have been removed]
Re: [Life With A Lazy Daze RV] Engine differences Reply #4 – April 01, 2003, 11:48:14 am Yahoo Message Number: 20600"While I am not an automotive engineer, I would think there is some formula showing desirable levels of power and torque..."My math is rusty, but I think it's something likeMore = better Sorry, teasing again! ;-) I understood your intent, Todd: a motorhome is a big drag (much as we love them), and it takes a fair-sized engine to push all that frontal area through the atmosphere. The fact that drag quadruples as speed doubles puts even more of a premium on power...or on avoiding a lead foot.Andy Baird :-)
Re: Engine differences Reply #5 – April 01, 2003, 01:44:37 pm Yahoo Message Number: 20608Quote While I am not an automotive engineer, I would think there is some formula showing desirable levels of power and torque as a ratio of wind resistance and weight factors. Maybe the engineers in the group could help out with that.Quote Todd T. Todd (and anyone else)I have an Excel spreadsheet which does not indicate torque or gasoline usage, but indicates horsepower needs over a wide variety of wind and grade. You can extrapolate fuel usage from known usage and defined wind and grade values. It is set up for a fully loaded 26.5 coach (14,050 lbs) and a rather high alternator load (but you can vary weight and alternator load). If anyone needs one, you can E-mail me, gweber3369 at reanet dot net, and I'll try to answer all requests. I did this a few years ago and several people asked and received one.Gus Weber
Engine differences Reply #6 – March 28, 2003, 07:21:59 pm Yahoo Message Number: 20437I have a 1998 23.5 T/K built on a 1997 Ford chasis. It has what I believe was the first V10 engine. It has been both reliable and efficient. Either the 1997 or 1998 was the first LD to have the V10. It is my understanding that the V10 is a step up from the big V8 available in earlier models. Ford has improved the V10 in subsequent years (or so I have been told), but the first one was pretty darn good! Given a choice (and the budget) I would buy an LD with a V10 if possible. I believe it is a better engine. (But that's just my opinion!)Allen
Re: [Life With A Lazy Daze RV] Engine differences Reply #7 – March 28, 2003, 07:58:29 pm Yahoo Message Number: 20443Allen, your right again. 97 was the first of the V10. Late 96 was the first of the Super Duty and the last of the 460, and the 460 was and is a great engine. Well proven. The V10 seems to be doing just fine.Chuck H
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