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 > Your search for posts made by 'Crespro' found 25 matches.

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  Subject Author Date Posted Forum
RE: Oops

After setting the type of brakes you have (electric or electric over hydraulic) you can adjust the trailer brake gain setting. You should probably start with your controller set at about 6. At about 20 mph slide the manual trailer brake lever fully to the left …. If the trailer tires lock up on dry pavement back the setting off … it the tires rotate freely turn the setting higher. The goal is to adjust so that maximum braking can be achieved without wheel lock up. I am often at about 17000 lbs so a little over my trailer’s GVWR and my wheels will lock up at 6.5 on pavement. Thanks. Good info. I will do this test.
Crespro 08/19/21 04:34pm Tow Vehicles
RE: Oops

Hi. I have the same weight fifth wheel and run 7.0 on an F-250. Seems fine, but you suggest 6.0. I know there is a test at 20mph. Is that how you set your unit at 6.0? Thanks!
Crespro 08/18/21 03:16pm Tow Vehicles
RE: Fuel for Gassers

I believe the 7.3 V8 calls for 87 Octane. It runs fine on 87 when empty. I started using premium when towing and with 22.5K, it is better to have more power.
Crespro 07/23/21 05:58pm Class A Motorhomes
RE: Size Matters???

Pulling 15K RV with 7.3 and 4.30 axle. During 40% towing, better able to maintain speed than my prior 38K unit with 400 ISL diesel. But, must adjust to 3k to 4K rpm on hills and downshifts. During 60% not towing, gas is much better than diesel IMHO. Mileage depends on wind, but generally 7 towing (22.5K) and 14 to 15 not towing.
Crespro 07/17/21 03:46pm Tow Vehicles
RE: Opinions on 5th Wheels with Island Kitchens

DW says our 310 GKR is her "dream" RV kitchen. It has four apartment-quality appliances, a full pantry with door and an island with double sink and modern three tray dishwasher. A friend with a class A was visiting and said that this was in many ways better than the top end class A kitchens.
Crespro 07/17/21 03:31pm Fifth-Wheels
RE: Grand Design Quality

While we like our Grand Design and think it is good quality, there is one feature that impresses me. The moderators on their Tech page on the Grand Design website are all volunteers and provide great support. I run a business with a product support staff and especially appreciate the value of good support.
Crespro 07/03/21 07:49pm Fifth-Wheels
RE: How critical is axle ratio?

I think choosing the best gear ratio begins with having a good understanding of your engine’s powerband. Seeing a torque curve of the 7.3 would be very useful. A bsfc map would also be helpful. After getting a sense of your engine’s capabilities knowing the transmission’s gear ratios is essential. Finally knowing how the truck will be used needs to be considered. I don’t know much about the 7.3 other than it has a long flat torque curve and I believe it makes 430 peak hp at 5500 rpm. It makes 425 lb ft of torque at 3250 rpm (263 hp). and 350 hp at 3900 rpm. 350 hp should be more than enough power to tow a 12000 lb rv up a 6% grade at 60 mph. With 3.55 gears and the 10 speed 7 th gear would put you at 2150 rpm at 60 mph with 34 inch tires and 4th gear would put the engine at 3800 rpm at 60 mph. Without giving it much more thought I’d agree with Shiners earlier post: If your going to be running empty a fair bit get 3.55 gears and you’ll have the opportunity to get better fuel economy unloaded on the highway. While towing you can lock out the top gears and still have all the performance you need, seldom dropping below 4th gear in the hills. If your primarily going to be towing with the truck you may as well get 4.30 gears to gain a little bit of grunt at the rear wheels to get your trailer moving in first gear. The odd time when your running empty down the highway you’ll be at 2060 rpm in 10 th gear at 75 mph…. which doesn’t sound too bad. 4x4ORD has good insights. With my truck and 15K fifth wheel, the 3.55 Ford engineer limits of 14.8K and 21.8K are too low. The 4.30 has Ford limits of 18.9K and 26K. These provide a reasonable comfort margin (about 25% and 15%). IMHO, the OP would be happier in the long run with greater towing margin.
Crespro 06/17/21 12:28pm Tow Vehicles
RE: How critical is axle ratio?

It does concern me a bit, and I'm thankful for this discussion, because in the near future I hope to be a 2022/2023 (whenever I get around to it) super duty owner. Right now towing a 9K TT, and probably something like a 12-13K fifth wheel in the future. for me, I've made the decision that a 7.3 F-350 makes the most sense. I don't want a truck that turns too many RPMs unloaded on the highway, but I also don't want it to lug while towing. Anything will seem like a huge improvement over my 4r100/3.73 combo right now. I guess it's first world problems when you get down to it. Anybody running 4.30s with a newer 7.3/10 speed, what are your RPMs on the interstate? Does it feel like it's too high? Anyone running 3.55 or so gears? Do you even use 10th?!? I run the 4.30 with the 7.3 gas engine. About 2,000 rpm in tenth gear at 65 mph empty. It pulls a 15K fifth wheel fine, but of course, you know you are loaded. The TFL test was a 16K gooseneck trailer up the IKE, so I knew this would be adequate power. I would get the 4.30 with the 10 speed -- excellent combo. I am rated for 26K, and run at 22.5K GCWR.
Crespro 06/15/21 04:27pm Tow Vehicles
RE: Moving to a 5th Wheel

We went through a similar process and ended up with a fifth wheel and an F-250 with 7.3 gas engine. I load the fifth wheel to keep the pin weight between 18% and 19%. For us, it is a good combination of ride and tow capacity. We use about 22.5K of the 26K tow rating. Because DW likes to take day trips, a SRW was required. The 22 foot length is a challenge, but can be managed. The F-350 with 7.3 gas had less payload than the F-250. The F-350 diesel can be bought with 11.4 GVWR and has more payload. Our fifth wheel is a great portable one bedroom unit. DW says she has a "dream kitchen" for an RV. We have six residential appliances, but that means we always have full hookups. We had three class A motorhomes, with a 40DP for 12 years. The fifth wheel has a better kitchen and living room than the 45DP's I looked at in 2019. The big benefit is that our fifth wheel is likely to have about 1/3 the maintenance of the class A. I am more "seasoned" than you are, so the lower maintenance was a big factor. Yes, the setup and unhooking takes longer than a class A, but the living space is worth the effort.
Crespro 06/08/21 04:33pm Fifth-Wheels
RE: Solar Panels

We are in a different environment, but have a 9K ground solar system and am adding two Tesla Powerwalls with 27K. Check out Ironridge if you want a ground unit. This should cover about 98% or more of our requirements. I am still connected to the grid, but if I were not connected, I would use a generator to cover the other 2%. This is a reasonable solution. I designed and installed most of the components myself, but do have an engineering background.
Crespro 05/27/21 01:18pm Class A Motorhomes
RE: Air ride assist

I have Firestone air bags on the rear axle and an Airlift compressor. Empty, the PSI is 5. With the fifth wheel, I run at 38 PSI. The ride is much smoother.
Crespro 05/20/21 03:23pm Tow Vehicles
RE: Solidtude 390RK

About Grand Design: We have a Grand Design 2021 310GK-R. I added a sleep number king bed, a Bosch dishwasher and Miele washer and dryer. I knew we would add those items when we bought. All the appliances are residential quality. We stream the same ROKU channels as at home on the TCL televisions. It is a June 2020 build and, other than adding a few screws, there are no major problems after five trips. We had a 40DP bought new in 2005 as our prior RV, so we do have fairly high expectations. Our 310 is in many ways better than our 40DP (although it takes longer to set up and hook up to travel). I am very pleased with our RV. CresPro
Crespro 04/25/21 10:27pm Fifth-Wheels
RE: Air Bag Pressure

Hello, Appreciate all the answers. I have about 300# to 400# RAWR reserve, so this is just a matter of the best ride. With the bags at 5 PSI, the ride is poor. 30 PSI is better and I now seem to like 38 PSI. The truck is fairly level at 38 PSI. I think the best level is from 30 to 45 PSI for the air bags and the best ride. One of the YouTube popular shows for Rv's uses 45 PSI on an F-350 with a toy hauler. Best, Crespro
Crespro 02/14/21 06:12pm Fifth-Wheels
Air Bag Pressure

Hi, For those of you with air bags on the rear axle and a fifth wheel, how much pressure do you use? I started with 30 PSI and now increased to 38 PSI. About 2,750# of pin weight. Crespro
Crespro 02/12/21 10:36pm Fifth-Wheels
RE: Going back to gasser based on needs (need advice)

Hi. Good discussion. My truck is rated 18.9K/26K with the 4.30 and 14.8K/21.8K with the 3.55.
Crespro 12/18/20 05:00pm Tow Vehicles
RE: Going back to gasser based on needs (need advice)

Hi. Not the same change, but I went from a 40DP with a Cummins 400ISL to the 7.3, ten speed and 4.30. Tow a 13.6K fifth wheel with about 21K on a 26K GCWR. TFL Truck towed 16K up the IKE with this combination, so it can go anywhere you need to. You will have substantial downshifts on the hills, but the same transmission is rated for 43K in the F-350 diesel, so I think it will be fine. I do not track mileage carefully, but guess I am at 14 empty and 7 towing. The gasser is much better for me -- about 75% of miles are not towing. I am getting used to the long bed, but the SRW is much better for parking in town.
Crespro 12/17/20 03:06pm Tow Vehicles
RE: Ford F-250 7.3 Gas Engine Axle Ratios

I have the 7.3 with the 4.30. I am very happy with that combination. Because I tow a fifth wheel, I have the long bed with the 48 gallon gas tank. It is a good combination. I bought the 4x2 for two reasons. DW likes the ride with the IFS -- very important. Plus, with the 4x2 and the 7.3, we have about 1,200# more available payload than the f-250 with the diesel. While the 6.7 diesel is a great engine, the 7.3 with the 4.30 is a better option for us. About 2,000 rpm at 65 mph. You would not want to be lower in rpm because you are then lower on the HP and torque charts.
Crespro 12/13/20 09:13pm Tow Vehicles
RE: Curiosity caught the Cheshire cat

Went past a Ford dealer couple weeks ago and noticed he had 2 SD dallies on the lot. Stopped by the following week to take a gander at them. 1 was a 450 Lariat and the other a 350 XLT. 79 and 70K respectively. Anyways, didn't spend a whole lotta time there, but on the 350 (very well equipped), it was a '21, 4.10 gears and had the 10 speed tranny. So it got me to thinking and perhaps a little drooling too, but what is the RPM difference between a 4.10 6 speed and 4.10 10 speed at 60-70 mph? On my '17 350 w/ the 4.10 6 spd, I'm at 2100 at 70 mph. With my 7.3L, ten speed and 4.30, I run just under 2,000 rpm at 65 mph. I think the 4.30 and 7.3 is an excellent combination.
Crespro 12/11/20 04:36pm Tow Vehicles
RE: Long Road trip

We had three motorhomes before our fifth wheel. When I had business on the east coast, the motorhomes with toad were great. We did all lower 48 states in about six weeks each summer. Now, we take a long weekend trip in CA each month, so a fifth wheel works well. The 35 foot fifth wheel has a modestly better living space than the 40DP. We will take a ten day trip next summer and I will have a better picture, but I tend to think we prefer the fifth wheel for our present use. Crespro
Crespro 11/27/20 10:44pm Fifth-Wheels
RE: Solar Tax Credit

Hello, This is an interesting concept. Let me quote the IRC and an IRS Notice. It appears that a full-timer who uses a class A, fifth wheel or TT as principal residence does qualify. There may be an argument that the first bold limitation is descriptive and the second bold sentence permits the credit for an RV. You should share this with your CPA who will make the decision. Crespro ======================== I.R.C. § 25D(d)(2) Qualified Solar Electric Property Expenditure — The term “qualified solar electric property expenditure” means an expenditure for property which uses solar energy to generate electricity for use in a dwelling unit located in the United States and used as a residence by the taxpayer. Q&A on Tax Credits for Sections 25C and 25D Notice 2013-70 SECTION 1. PURPOSE This notice provides guidance with respect to the credits for nonbusiness energy property under § 25C of the Internal Revenue Code (Code) and residential energy efficient property under § 25D of the Code. This notice incorporates the changes made to § 25C by section 710 of the Tax Relief, Unemployment Insurance Reauthorization, and Job Creation Act of 2010, Pub. L. No. 111-312, 124 Stat. 3296 (2010) (the 2010 Act) and to § 25C and § 25D by sections 104 and 401 of the American Taxpayer Relief Act of 2012, Pub. L. No. 112-240, 126 Stat. 2313 (2013) (the 2012 Act). SECTION 3. QUESTIONS AND ANSWERS RELATED TO BOTH § 25C (NONBUSINESS ENERGY PROPERTY) AND § 25D (RESIDENTIAL ENERGY EFFICIENT PROPERTY) Q-6: Are the credits available for improvements made to a second home (for example, a vacation home or an investment property)? A-6: Improvements made to a second home are not eligible for the credit under § 25C. Section 25C(c) and (d) require qualified energy efficiency improvements and residential energy property to be installed in or on a dwelling unit owned and used by the taxpayer as the taxpayer’s principal residence (within the meaning of § 121). With respect to the credit under § 25D, fuel cell property credits are not available for second homes. Section 25D(d)(3) requires fuel cell property to be installed on or in connection with a dwelling unit that is used as the taxpayer’s principal residence (within the meaning of § 121). However, a taxpayer may claim a § 25D credit for other qualifying properties described in § 25D that are not fuel cell properties (solar electric property, solar water heating property, small wind energy property, and geothermal heat pump property) installed in or on a dwelling unit used as a second home or a vacation home by the taxpayer. But a taxpayer may not claim the § 25D credit for expenditures for improvements made to an investment property, such as rental property, that is not also used as a residence by the taxpayer. (2) Dwelling unit. For purposes of this paragraph (e), the term dwelling unit has the same meaning as in section 280A(f)(1), but does not include appurtenant structures or other property. Sec. 280A(f)Definitions and special rules (1)Dwelling unit defined For purposes of this section— (A)In general The term “dwelling unit” includes a house, apartment, condominium, mobile home, boat, or similar property, and all structures or other property appurtenant to such dwelling unit.
Crespro 11/23/20 09:03pm Fifth-Wheels
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