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Search: Keyword(s): ; Posts Made By: bfeng
Forum: X5 E70 (2007 - 2013) 05-18-2017, 08:49 PM
Replies: 4
Views: 298
Posted By bfeng
Kanar I am again in your debt. Ard, The...

Kanar
I am again in your debt.

Ard, The way the guy at Can-Am spoke, it sounded like they do lots of Mercedes, Audi and BMW hitch reinforcements. I'll bet they hav an X5 re-bar on a shelf, but...
Forum: X5 E70 (2007 - 2013) 05-18-2017, 08:44 PM
Replies: 157
Views: 14,455
Posted By bfeng
Pat, kanar, Thanks again. The pic is helpful...

Pat, kanar,

Thanks again. The pic is helpful and I got it about the rear axle carrier (subframe).
It looks pretty straight forward to cut and fit the tuning.

Who did your reinforcement, how...
Forum: X5 E70 (2007 - 2013) 05-18-2017, 02:49 PM
Replies: 157
Views: 14,455
Posted By bfeng
Sure, which would allow you to design an...

Sure, which would allow you to design an optimized reinforcement.
I'm just going to ask a local fabricator to do something with 2"square steel tube that ties in up at the rear subframe or floor....
Forum: X5 E70 (2007 - 2013) 05-18-2017, 02:44 PM
Replies: 4
Views: 298
Posted By bfeng
Pictures of reinforced OEM hitches?

Has anyone had their hitch reinforced with forward oriented struts (like what CanAm in Canada does)? CanAm makes a strong arguemwnt that a 2" tubular reinforcement that ties the receiver to a...
Forum: X5 E70 (2007 - 2013) 05-18-2017, 03:29 AM
Replies: 157
Views: 14,455
Posted By bfeng
Just read the articles here...

Just read the articles here (http://www.canamrv.ca/blog/category/hitch-hints/)

They suggest my guess about the utility of having those forward arms is correct, they are there to resist the torque...
Forum: X5 E70 (2007 - 2013) 05-16-2017, 03:45 AM
Replies: 157
Views: 14,455
Posted By bfeng
Kannar Yup we had one of those defective...

Kannar
Yup we had one of those defective hitches from Mercedes.
The reason I mentioned the bars (ala e53), is that they provide a forward attachment for the hitch that might better resist the...
Forum: X5 E70 (2007 - 2013) 05-15-2017, 06:08 PM
Replies: 157
Views: 14,455
Posted By bfeng
New addition to the E70 Towing crowd. First of...

New addition to the E70 Towing crowd.
First of all, I screwed up big time on my first tow with th e70.
The trailer is an 8.5x20 enclosed aluminum car hauler. I called the mfr and went over the...
Forum: X5 E70 (2007 - 2013) 05-14-2017, 10:24 AM
Replies: 9
Views: 535
Posted By bfeng
I have the stock 19"s on 335 rims. Love this SUV...

I have the stock 19"s on 335 rims. Love this SUV !
Forum: X5 E70 (2007 - 2013) 05-13-2017, 05:42 AM
Replies: 9
Views: 535
Posted By bfeng
amazing mpg

I still haven't gotten around to replace my thermostat (in the next 4 weeks, really), so running temps are 74C (85-100 when towing). I did two mpg tests:
(1) on a 5mi long level piece of highway,...
Forum: X5 E70 (2007 - 2013) 05-12-2017, 08:57 AM
Replies: 29
Views: 1,047
Posted By bfeng
Right and my personal experience is one lap isn't...

Right and my personal experience is one lap isn't enough. And anything that stabilizes tire behavior sooner is good. But I also trust y'all that nitrogen probably doesn't do that much in this regard...
Forum: X5 E70 (2007 - 2013) 05-12-2017, 08:43 AM
Replies: 29
Views: 1,047
Posted By bfeng
"Scca and FF" Yes my mistake. Totally wrong...

"Scca and FF"

Yes my mistake. Totally wrong statement!
Forum: X5 E70 (2007 - 2013) 05-10-2017, 03:39 PM
Replies: 29
Views: 1,047
Posted By bfeng
THis is fascinating. I have a bit Nitrogen...

THis is fascinating. I have a bit Nitrogen cylinder in the trailer for filling the race tires. I'm told this is desirable because you don't see as much pressure variation with temperature rise as you...
Forum: X5 E70 (2007 - 2013) 05-10-2017, 03:34 PM
Replies: 29
Views: 1,047
Posted By bfeng
Maybe we should add a multi-LED red light bar to...

Maybe we should add a multi-LED red light bar to the sides of our trailer and have those blink together with the rear turn signals.

And then upgrade the backup lights with brighter LED lamps and...
Forum: X5 E70 (2007 - 2013) 05-10-2017, 07:01 AM
Replies: 29
Views: 1,047
Posted By bfeng
I have a good buddy that was blowing up trailer...

I have a good buddy that was blowing up trailer tires regularly. He has a monster tow vehicle (+800ftlbs of torque) and of course this is a 5th wheel trailer. He likes to go fast 70-80. Finally, he...
Forum: X5 E70 (2007 - 2013) 05-10-2017, 06:00 AM
Replies: 29
Views: 1,047
Posted By bfeng
Castle In my limited experience, too much...

Castle
In my limited experience, too much tongue weight unweights the front tires (loss of braking capacity and steering stability), and too little results in the trailer unweighting the rear tires...
Forum: X5 E70 (2007 - 2013) 05-10-2017, 04:39 AM
Replies: 9
Views: 459
Posted By bfeng
Ok, so my BMW indy doesn't have the right...

Ok, so my BMW indy doesn't have the right software (it wasn't laptop based, but a bulky tablet type device that codes a variety of makes and models). I watched and the interface was really simple...
Forum: X5 E70 (2007 - 2013) 05-10-2017, 04:34 AM
Replies: 29
Views: 1,047
Posted By bfeng
I appreciate the advice because it is based on...

I appreciate the advice because it is based on experience, not just internet browsing (which makes everyone think they are an expert these days). I just read about the ProPride hitch. Smart design,...
Forum: X5 E70 (2007 - 2013) 05-09-2017, 07:55 PM
Replies: 29
Views: 1,047
Posted By bfeng
The castle Thanks for lots of useful advice. In...

The castle
Thanks for lots of useful advice. In the pic the hitch ball is clearly too high. My WD towbar is adjustable, so I did level it out on the second 150 leg of the trip.

I agree that...
Forum: X5 E70 (2007 - 2013) 05-08-2017, 01:15 PM
Replies: 24
Views: 849
Posted By bfeng
We need water mist nozzles in front of our...

We need water mist nozzles in front of our intercoolers.
I'll bet your turbos were glowing climbing over those passes.
Forum: X5 E70 (2007 - 2013) 05-08-2017, 11:36 AM
Replies: 202
Views: 32,710
Posted By bfeng
Peace, over and out...

Peace, over and out...
Forum: X5 E70 (2007 - 2013) 05-08-2017, 10:48 AM
Replies: 202
Views: 32,710
Posted By bfeng
You seem to be offended by something I said. ...

You seem to be offended by something I said.
First, I didn't say "bad design" All automotive design involves tradeoffs. The tradeoffs they make may or may not align with your preferences. I think...
Forum: X5 E70 (2007 - 2013) 05-08-2017, 06:08 AM
Replies: 202
Views: 32,710
Posted By bfeng
"around town aggressive driver..." Very...

"around town aggressive driver..."

Very tempting to comment on people who drive aggressively "around town."

But let's stick to the cars and not the bad habits of American drivers.

City...
Forum: X5 E70 (2007 - 2013) 05-08-2017, 05:28 AM
Replies: 24
Views: 849
Posted By bfeng
Glad to hear it is typical to see 100C and over...

Glad to hear it is typical to see 100C and over when towing. I agree that 105c should be fine for coolant and that oil temp could be more useful. My free OBD SW doesn't seem to have an oil temp PID...
Forum: X5 E70 (2007 - 2013) 05-07-2017, 04:45 PM
Replies: 24
Views: 849
Posted By bfeng
Engine temps when towing, +25C over nominal

I towed my 6000 lbs trailer another 150 miles today.
With a lightly tensioned WD hitch it drove much better than without. Still not super stable but fine if I concentrated when the highways was...
Forum: X5 E70 (2007 - 2013) 05-06-2017, 05:12 PM
Replies: 29
Views: 1,047
Posted By bfeng
So, based on many experienced posters I am sure...

So, based on many experienced posters I am sure itowing will improve if I put my car in the trailer backwards so the motor is in the rear of the trailer. For 6000lbs, I thin 350-400lbs of tongue...
Showing results 1 to 25 of 174

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