|
Xoutpost server transfer and maintenance is occurring.... |
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management |
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
Towing: 35i vs 35d
So....I am planning on having an invisihitch installed that I am planning on towing about a 4500-5000 lb boat behind. I assume the 35d will be better at pulling the boat, but I also know I will likely have the 35i for much longer. I don't really feel like putting a hitch on the 35d, but then having to go to the hassle of taking the hitch off and getting it installed on the 35i (with all of the harness wiring, coding, etc) after a few years. So, how much better would the 35d be at towing a 5000 lb boat. Any opinions? Any first hand experience with both?
__________________
2004 M3, Silver Grey, Blk, 6MT 2011 X5, 35d Sport Activity, Deep Sea Blue / Cinn Brown 2013 X5, 35i Sport Activity, Platinum Gray / Blk, AD |
Sponsored Links | |
|
#2
|
||||
|
||||
I'll let you know how my 2011 35d trailers a 2100# U-haul trailer with my 2007 M6 on it from Mississippi to Wisconsin (1200 miles) in a few days. The X is rated to tow 6000# and I'll be at about 5800#. The diesel has 400+ Ft # of torque I believe which is much more than your gas X5. It took me less than 2 hours to install the hitch the other day and it's less time consuming than most people think.
__________________
Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out and loudly proclaiming: "WOW! WHAT A RIDE!!" 2007 M6 2018 Chevy 2500HD Diesel Alaskan Edition 2011 X5 35d 1972 Chevy K20 4X4 1972 Ford F-600 1959 Chevy Viking 60 Dump Truck 2015 CanAm Outlander XT 1000 |
#3
|
||||
|
||||
Both will pull it fine. The 35d may do better on towing fuel economy if you are towing a lot and that matters in your case.
Engine torque doesn't much matter, for all the press it gets. It is hp that gets you up the hill at a given speed. While the diesel has good low end torque, so does the 35i, it is a characteristic of the turbos more than the combustion cycle. While the diesel has higher peak torque, you are fortunate to have a transmission so wheel torque will be higher on the 35i than the 35d, at a given speed. Does your 35i have the 8 speed? That would matter more than the engine, to me at least. Short story, whichever one makes the most sense for you.
__________________
2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue |
#4
|
||||
|
||||
Quote:
My '03 4.6is used to tow #6500 car on a trailer on occasions and never struggled even on a steep grades,usually getting around 14 mpg on a flats.But was really struggling with my 21" Sea Ray 210SD,which is around twice as high and wide as the X5.Should be around #5500 with the trailer and some stuff inside.I was getting 9-10 Mpg.The air resistance is the key factor here. The '12 X5D pulls the boat in a very commanding matter,5th and 6th gear and 15-16 Mpg.That is where the diesel shines really and i hardly have to go over 1500 RPM. I cant say how the 30i will be,my guess is it will be at least a few Mpg down and it may need more high RPM and more downshifting.Regardless of the 8 speed tranny you cant tow the boat on 8th gear with 1500 RPM with the gas.But if you decide to try i'll be glad to hear your impressions. Quote:
|
#5
|
|||
|
|||
I think it will be over 6K and watch your tongue weight.
|
#6
|
||||
|
||||
Quote:
The curb weight of a 2007 M6 coupe is 3909#. I've removed over 120# from the exhaust system, 12# with an aluminum flywheel, 4# of exhaust shielding (Yes, 2 Mufflers deleted at 44# each) + resonators deleted and other exhaust mods. The weight is around 3725#. Trailer 2153# with a total weight of around 5920#. Yes, the fuel tank is empty. When reserving the U-Haul trailer it requires you to input the towed vehicle and the tow vehicle to compute if it's acceptable and the combination does fall within U-haul weight standards. To make the M6 as light as possible I'm removing the battery, air pump, and tool kit from the trunk and putting that in the X. That'll be another 75#. Every # will help. You are correct bawareca, even if it was 6500# it would probably still be OK. The M6 is very aerodynamic so that'll help for less wind resistance down the highway also. I'll note the RPM at various highway speeds when I begin the trip tomorrow.
__________________
Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out and loudly proclaiming: "WOW! WHAT A RIDE!!" 2007 M6 2018 Chevy 2500HD Diesel Alaskan Edition 2011 X5 35d 1972 Chevy K20 4X4 1972 Ford F-600 1959 Chevy Viking 60 Dump Truck 2015 CanAm Outlander XT 1000 |
#7
|
||||
|
||||
You did good,adding some lightness to the M6 Still the actual weight could be a tad more than you expect.You will be amazed how competent towing machine the X5 is and the people laughing at it have no idea of it's qualities.My diesel have no SLS on the back and I load the cars with a rearwards bias,more often the rear end first.U-haul trailer is very nose heavy(for safety reasons,of course)and if your X5 has no SLS you may consider loading the M6 backwards.
Good luck with your trip. |
#8
|
||||
|
||||
Quote:
I always use this analogy for horsepower vs. torque: Horsepower = quick ninja. Torque = sumo wrestler. A ninja is hella quick, but won't be as quick with a heavy backpack on it's back. A sumo wrestler is slow and steady empty handed, and won't even feel that backpack. That's in line with how people who tow with 35ds describe it: acceleration is pretty much the same with or without a boat attached. |
#9
|
|||
|
|||
Diesel, no ifs and or buts about it.
__________________
| '17 F15 X5 35D - Work horse | '17 F48 X1 MSport Daughter's daily | '22 Tesla MY LR Wife's Daily | '09 E70 X5 35D - Out to pasture | |
#10
|
|||
|
|||
Quote:
__________________
| '17 F15 X5 35D - Work horse | '17 F48 X1 MSport Daughter's daily | '22 Tesla MY LR Wife's Daily | '09 E70 X5 35D - Out to pasture | |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
|