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Old 06-18-2007, 05:53 AM   #15
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We had a 1999 Minnie Winnie on the E-450 SD chassis. The coach was 31' and no slides. We had HWH levelers added and got some scale weights hen we were loaded for a trip, two adults, 1 medium dog, 1/4 tank fresh water, empty waste tanks, food and clothes, the coach weighed 13,950#...only 100# below the chassis GVWR.

The coach handled terribly unit I made several suspension modifications. First I added air springs to the front and rear, then I added Bilstein shocks to all 4 corners and lastly, I replaced the stock anti-roll bars with IPD USA anti-roll bars with urethane bushings.

The coach road and handles great after the modifications. The net result is that Ford does not put sufficient suspension on the chassis to handle a big box loaded to near limits on the chassis.

With the new modifications, the coach no longer had a bump steer and the tendency to roll from side to side which resulted in a see-saw steering motion.

In any case, I was really surprised when Workhorse announced a class C chassis that had the same GVWR rating as the Ford E-450. I have not had a chance to drive a Workhorse class c chassis, but I hope they did a better job on the suspension. I was also surprised that they put the 6.0L in it and not offer the 8.1L or even the DuraMax.

The 6.8L engine did a good job in the 31' coach, but all time best fuel economy was right a 8.4 MPG. This was flat land, 65 to 70 MPH and towing a 3000# car.

Ken
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Old 06-18-2007, 10:36 AM   #16
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">What DriVer and you are telling me is that a 6L engine with 300hp and 360 lbs ft of torque with a 4 speed transmission on top of it is not only adequate but really better than the 6.8V10 with 305 hp and more than 400 lbs ft of torque and a 5 speed. Am I reading your comments correctly? </div></BLOCKQUOTE>

If you read my review, you'll see I am quite forward that the Ford accelerated better and felt to have mor epower.

For me personally, not enough to warrant over the pluses on the Chevy. That's all.

The Chevy has enough to get the job done, and yes the Ford will do it better in the power arena: But it loses in all the other "key to me" areas.
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Old 06-18-2007, 04:59 PM   #17
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by The Shadow:
Ummm. Seems to me you may need a lesson in weights. </div></BLOCKQUOTE>Apparently 11:45pm is way past my bedtime. Sorry!
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Old 06-18-2007, 05:26 PM   #18
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by The Shadow:
OH, over the past four years we've been treated to all the explanations why a big V8 is better than a smaller higher revving V10. I gather the new GM engine you are referring to just might be a higher revving V10? (what do your sources have to say on this rumor?) It will be interesting to watch the shifting positions on this one if the new GM engine is a V10. I gather Caddy has a V12 coming in a few years as well. </div></BLOCKQUOTE>This is indeed going to be the primary topic of conversation over the next few years going into 08 through 10. How will GM translate, modern design, smaller displacement, increased horse power & torque, reasonable low RPM and excellent fuel economy while being emission compliant.

Known is that GM will be dropping the 8.1L so it's going to happen and a replacement engine is going to be needed. Exactly how GM manifests that only their skunk works knows however you can be assured that it's under development.

I'm just hoping the new engine doesn't sound like a hyperactive model airplane engine that we hear from a Formula 1 V8.
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Old 06-19-2007, 05:02 AM   #19
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The sooner they can get this out and in to our C Class MHs all the better. I'd swap my 8.1L for this in a second.
New smaller Duramax 4.5 litre 310/520
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Old 06-19-2007, 12:17 PM   #20
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Did you know that the DMAX is available on the 2007 GM/WCC 12,300 GVW chassis only? It's not yet been installed in the 14,050 but it may happen in 2008.

I'm only speculating on that happening but I'm keeping my options open.... who knows, and they ain't talking right now.

The DMAX is coupled with the 4L85E transmission BTW the same as installed in the 14,050.

The 5 year 100,000 mile warranty applies for all 2007 model year vehicles.
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Old 06-19-2007, 12:34 PM   #21
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Looks like a great motor if it isn't too heavy.

Nice!
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Old 06-21-2007, 08:55 PM   #22
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After driving the 3500 a bit, and then my buddies 2006 E450, it really doesn't seem to be more powerful; I feel initially the extra noise threw me off.

So, off to the dyno for these two beasts to see what the real deal is...
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Old 06-22-2007, 07:55 AM   #23
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">So, off to the dyno for these two beasts to see what the real deal is... </div></BLOCKQUOTE>

That would be interesting to see since I don't know of anyone that has done any independant testing: And we all know that manufacturers have their own 'special' way of testing performance.

In any case, it doesn't matter to me. The Chevy is so much nicer to drive and more comfortable so I don't really care if I happen to arrive a little later.
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Old 06-22-2007, 09:12 PM   #24
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They did 3 runs today on each coach, and all came out pretty much the same.

I can't post the graphs, but you can put these numbers in Excel and see them.

I was surprised how well the Chevy did, and to see how peaky and low the torque was on the Ford:

<span class="ev_code_RED">The first comparison is regarding Torque.</span>

Chevrolet 6.0L - Ford 6.8L

1000 98 104
1500 177 187
2000 231 229
2500 272 265
3000 304 301
3500 328 338
4000 345 366
4500 343 341


<span class="ev_code_RED">The second comparison is regarding Horsepower.</span>

Chevrolet 6.0L - Ford 6.8L

1000 85 78
1500 106 99
2000 140 123
2500 178 181
3000 225 232
3500 269 272
4000 292 296
4500 282 280


That reads better.
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Old 06-23-2007, 06:37 PM   #25
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by WinnebagoDRVR:
That reads better. </div></BLOCKQUOTE> I think I'm missing something?
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Old 06-23-2007, 07:14 PM   #26
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RPM on the left side

Chevy numbers in the middle

Ford numbers on the outside

First set Torque output

Second set Horsepower output

Example on Torque:

3000 304 301

3000 RPM
Chevy 304ft-lbs
Ford 301ft-lb

Example Horsepower:

4000 292 296

4000 RPM
Chevy 292 HP
Ford 296 HP

Got it?
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Old 06-25-2007, 02:37 PM   #27
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I get it.

Not too shabby for the little Chevy. And better mileage to boot!
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Old 06-26-2007, 06:30 PM   #28
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Was this from a dyno or a GTech?
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