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General Automotive General automotive discussion. This is intended to be a discussion about other not VW and Diesel cars you may have or interested in.

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Old January 17th, 2020, 23:21   #16
jackbombay
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Originally Posted by turbobrick240 View Post
I can see things get squirrelly pretty easily with a rig like that...
I used to think that, but I've tied notably to come up with a scenario where it could get unpredictable and out of control and I really can't. I'm all ears if you want have thought of a specific scenario where it could lose control.
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Old January 18th, 2020, 02:43   #17
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I used to think that, but I've tied notably to come up with a scenario where it could get unpredictable and out of control and I really can't. I'm all ears if you want have thought of a specific scenario where it could lose control.

Well, obviously there are infinite scenarios where any vehicle could lose control. As long as the pusher rig is only pushing on dead straight, level roadway at speeds below 60 mph in good weather I might feel safe riding along. Dynamically, it seems somewhat similar to the difference between pulling a trailer forward and pushing back it in reverse. I love the inventive spirit of the creator, but I'd call it more of a cool curiosity than a safe, practical option for the general public.
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Old January 18th, 2020, 04:01   #18
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I was in a 45 mile per hour zone one afternoon and I noticed a pickup truck following me pulling a trailer with what looked like plastic schedule 40 pipe.

He was not going that fast and it was sunny, dry, warm, conditions were fine, straight level section of road. I just happened to recheck my rear view mirror and I saw him start to swerve and loose control of that truck. He went back and forth two or three times and then the truck and trailer jumped the curb into someone’s yard and both turned on their sides. Spilling about 20 or so pieces of of plastic pipe all over the roadway behind me.

I’ve often wondered what caused that accident. He wasn’t overloaded, no idiot oncoming traffic, perfect more or less conditions, not speeding. The best I can come up with is a locked up brake or blown tire on the trailer which of course I couldn’t see from my position. I think about that seemingly random accident whenever I’m pulling a trailer or with someone who is.
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Old January 18th, 2020, 07:30   #19
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Originally Posted by jackbombay View Post
I used to think that, but I've tied notably to come up with a scenario where it could get unpredictable and out of control and I really can't. I'm all ears if you want have thought of a specific scenario where it could lose control.
OCTranspo (Ottawa City Transportation) bought a whole bunch of articulated buses a while back, these buses are essentially a 4 wheeled vehicle with a permanently attached trailer. These particular buses have the engine all the way at the back driving essentially the "trailer" wheels. Now, for those perhaps not familiar with Canadian geography, Ottawa gets pretty cold in winter, and they get the occasional snowstorm. And then, hilarity ensues ...

https://www.youtube.com/watch?v=XVssCE7mY5g

https://www.youtube.com/watch?v=GSVtpC57Zrw

Problem is that when the bendy bit is bent for whatever reason, the pusher trailer wants to push straight and the back wheels of the front part of the bus are sideways holding it stopped ...
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Old January 18th, 2020, 10:22   #20
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Dynamically, it seems somewhat similar to the difference between pulling a trailer forward and pushing back it in reverse.
This is entirely different though, sure, the trailer hitch/ball is being pushed on by the trailer in both scenarios, but that is where the similarity ends. The massive difference between backing up a trailer and this trailer pushing the car is that the car getting pushed is going the opposite direction.

With the rear axle of the vehicle effectively providing the steering input to the trailer it really cannot get out of control. Sure, on an icy road with summer tires on it could get wierd, but under most any normal driving situations it just can't, you also have to remember this is a 52 HP motor, and its old, and its getting power to the ground through an auto trans, so we're talking what, 35 WHP?
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Old January 18th, 2020, 10:49   #21
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LOL im not a big Fan of Teslas either because i find them way too over pricey and the fact that i would have to get a electrician to install a power unit in the garage to charge it is another and ever wonder if you have an emergency in the middle of the night to use the car and cant because batt is not fully charged yet BUT. beleive or not there is better battery technology coming in the near future where you will be able to charge a battery fully in 5-10 minutes it is coming guys getting back to tesla i was reading online that there is a tesla owner i beleive out of california that has nearly 1 million miles on his 'original battery.!!' that's impressive. but i still dont like the existing waite charging time with tesla batt or price but im hoping it should get a lot better over time.
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Old January 18th, 2020, 11:01   #22
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Iíve often wondered what caused that accident. He wasnít overloaded, no idiot oncoming traffic, perfect more or less conditions, not speeding.

From your description, it was almost certainly a very low or even negative tongue weight scenario from improper loading. With a negative tongue weight you get that sort of powerful swaying action that can't be stopped and will eventually spin the whole rig... terrifying.
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Old January 18th, 2020, 11:04   #23
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That guy is a master tinkerer!
He really is, I ran into him once in Salem and he told me all about it, and lots of stories of using it. It's one of the coolest home projects I've ever seen. The full engine controls and gauges inside the EV were really amazing.
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Old January 18th, 2020, 12:52   #24
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From your description, it was almost certainly a very low or even negative tongue weight scenario from improper loading. With a negative tongue weight you get that sort of powerful swaying action that can't be stopped and will eventually spin the whole rig... terrifying.
With trailer brakes it can be stopped really quick by applying just the trailer brakes, without trailer brakes you have to give it a bit of gas to "pull it straight", but often times when you have a system that is tending toward chaos, adding more energy to the system is scary and/or counterintuitive, or impossible due to constraints of the road or the presence of other vehicles...

I had a trailer wag on me one time 20 years ago, I was able to accelerate slightly to regain control, but man, I am now a stickler for proper tongue weight whenever pulling trailers... I was blown away how much a 2000 pound trailer could boss around an F250
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Old January 18th, 2020, 12:53   #25
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He really is, I ran into him once in Salem and he told me all about it, and lots of stories of using it. It's one of the coolest home projects I've ever seen. The full engine controls and gauges inside the EV were really amazing.
So rad you met him! He's a legend in my mind! I used to read a lot of his posts on the IDI forum many years ago, he abruptly quit posting there at one point, which was a real bummer.
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Old January 18th, 2020, 22:24   #26
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ever wonder if you have an emergency in the middle of the night to use the car and cant because batt is not fully charged yet BUT.
I've had a similar problem with my TDI forgetting to fill-up or waiting for a good deal on diesel. I've gotten into my car needing to get somewhere quickly but only had 1/8th a tank or ~90 miles of range.

But with my Tesla plugging in when you get home becomes a habit like putting your seat-belt on and the price is always the same (equivalent of ~$0.50/gallon). When you rarely drive >100 miles and have a car with a 300 mile range it's super-rare for the battery to drop below ~100 miles (usually >200 miles) which is more than enough to handle any 'emergency'.
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Old January 19th, 2020, 11:38   #27
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I have a great fix for range in these over priced golf carts: Rip out the idiotic electric stuff and nstall an ALH drivetrain. Works great in summer and a HELL of a lot better at -30.
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Old January 19th, 2020, 13:19   #28
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I have a great fix for range in these over priced golf carts: Rip out the idiotic electric stuff and nstall an ALH drivetrain. Works great in summer and a HELL of a lot better at -30.

Ha ha !!


There is a Dunkiní Donuts in Corning NY that installed a genuine Tesla supercharger about 2-3 years ago. I love Dunkiní Donuts coffee so I stop there occasionally and the Dennyís restaurant across the street.


I stopped at the Dunkin this past week and for the first time since installation I saw one of the 10 or so chargers being used. Now the little 6 -8 pump gas station across the road beside the Dennyís is always busy, they are both just off an exit on I86.


As I drove in I noticed a Tesla suv (X?j being charged I pointed it out to my wife and thought the owner was probably having coffee or maybe at Dennyís across the street. Nope, some older gentleman very smug looking as we drove by sitting in his car. It was cold out so here he sits in his $100k car with the heat on charging his car.


Only the second X class Iíve ever seen out of less than a dozen Teslaís total. Traveling from PA to FL on several occasions.
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Old January 19th, 2020, 15:31   #29
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I think you're just not noticing most of them. There are more Teslas on the road now in the US than tdi's. They were extremely rarely seen on the road up here in my rural area of Maine until last year. Now I see Model 3's almost every day. They certainly don't jump out at you like a smart car or bmw i3. The Tesla cybertruck will be hard to miss whenever those roll out of the factory.
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Old January 19th, 2020, 17:08   #30
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Haven't seen very many if any Teslas in KC.
More likely in Johnson County and maybe some of the more properous Missouri counties.


I'll keep my TDIs - 600+ mile tank range on the 2000 Beetle (5 speed manual), 400+ mile on my 2015 Golf (with DSG).
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