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Scrapheap Challenge

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Zen Dog
World Chat Champion



Joined: 11 Aug 2004
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PostPosted: 16:57 - 20 Jan 2022    Post subject: Reply with quote
Nobby the Bastard wrote:

Yes, because you need the jets to go in the same direction otherwise the net effect is zero force. Thrust comes out of both ends.


That...doesn't make any sense. Where would the air go in? It's not a rocket engine, it mixes air with fuel. Also pretty much every image/diagram on the wiki page for pulse jets shows a straight tube (with air going in one end and thrust out the other). https://en.wikipedia.org/wiki/Pulsejet
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Nobby the Bastard
Harley Gaydar



Joined: 16 Aug 2013
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PostPosted: 17:17 - 20 Jan 2022    Post subject: Reply with quote
Have a look at that youtube video you posted. The flame front moves in a pulse from one end of the pipe to the other and exhaust comes out both ends.
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Ayrton
World Chat Champion



Joined: 02 Sep 2010
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PostPosted: 17:21 - 20 Jan 2022    Post subject: Reply with quote
I grew up watching Scrapheap Challenge and wheeler dealers and it's probably a large reason why I like fixing things myself.
Wheeler Dealers was very fake unfortunately. Ed admitted on his youtube channel (that's worth watching) that Paul did most of the work and he just did the 3 main fixes for the camera. I've heard stories from people involved that there's always lots more to fix than they show you too, so the profits they show are complete nonsense.

droog wrote:
I would like to revive an old 911 if one came up at the right price which is possibly wishful thinking these days anyway - but as a case in point the 911 engine can only be extracted from underneath the car and would require putting the car on a lift for example?

Probably the same as people do Toyota Mr2's, stick the car on stands and drop it out. I've been restoring a Mk1 MR2 for about 4 years now and it's a bit different to doing a bike and everything just takes longer because of the size. You do need a bit more space too if you plan on stripping the whole thing since you can easily take up another cars worth with parts.
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Zen Dog
World Chat Champion



Joined: 11 Aug 2004
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PostPosted: 17:26 - 20 Jan 2022    Post subject: Reply with quote
Nobby the Bastard wrote:
Have a look at that youtube video you posted. The flame front moves in a pulse from one end of the pipe to the other and exhaust comes out both ends.


Bloody hell you're right. https://en.wikipedia.org/wiki/Valveless_pulsejet

It sucks in air and produces thrust through the "inlet" with each pulse. So weird.
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Current - '94 VFR750FR, '00 VFR800FI Previous - '10 Street Triple R, '92 MZ ETZ301, '05 TTR250, NSR125R, KMX125, "Honda" Win (chinese copy of an old Honda design with a C90 engine)
My bike trip around S.E. Asia 2010/2011
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droog
Spanner Monkey



Joined: 03 Dec 2019
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PostPosted: 17:39 - 20 Jan 2022    Post subject: Reply with quote
Ayrton wrote:
I grew up watching Scrapheap Challenge and wheeler dealers and it's probably a large reason why I like fixing things myself.
Wheeler Dealers was very fake unfortunately. Ed admitted on his youtube channel (that's worth watching) that Paul did most of the work and he just did the 3 main fixes for the camera. I've heard stories from people involved that there's always lots more to fix than they show you too, so the profits they show are complete nonsense.

Probably the same as people do Toyota Mr2's, stick the car on stands and drop it out. I've been restoring a Mk1 MR2 for about 4 years now and it's a bit different to doing a bike and everything just takes longer because of the size. You do need a bit more space too if you plan on stripping the whole thing since you can easily take up another cars worth with parts.


Yes, TV can be misleading at the best of times, the editing sometimes leaves out all the effing and blinding when parts are seized and bolts round off, or having to put the job on hold while waiting for parts to turn up etc - giving the impression that everything went like clockwork and could be completed in a few afternoons.

The MR2 sounds like a great project Very Happy , if I had a large enough garage or back yard I would definitely consider a car project.
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MarJay
But it's British!



Joined: 15 Sep 2003
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PostPosted: 20:12 - 20 Jan 2022    Post subject: Re: Scrapheap Challenge Reply with quote
Zen Dog wrote:

I wasn't a dedicated watcher, but in the few episodes I watched I don't remember that ever being mentioned as the intent. Most amateurs don't have access to a massive workshop, or a dedicated team. If it was meant to be representing the enthusiastic amateur, who was occupying that role on the show? Brewer didn't do any of the work, and Ed had access to way more kit than your average amateur. They don't make any reference to whether the particular work they do is viable for your average amateur either. If they said things like "obviously you'd need access to a spray booth/chassis jig/whatever if you were doing this yourself" I could see it, but they don't. I'm not saying you're wrong, but that intent wasn't clear at all, to me at least.


Re watch it then. Ed rarely used anything more advanced than a hydraulic press or a transmission jack. He usually explains different ways of achieving what he's doing too, and he always outsources spray booth jobs, transmission rebuilds etc. The stuff he does is within the scope of an enthusiastic amateur, without a doubt. He does occasionally use his lift to good effect, but as I said there is often another way of achieving what he's achieving, and he'll often throw in labour costs in the voice over if you needed to have the ramp or specialist tool to absolutely achieve the job.
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thx1138
World Chat Champion



Joined: 06 Oct 2005
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PostPosted: 22:05 - 20 Jan 2022    Post subject: Reply with quote
i also liked the Great Egg Race
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Nobby the Bastard
Harley Gaydar



Joined: 16 Aug 2013
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PostPosted: 22:31 - 20 Jan 2022    Post subject: Reply with quote
thx1138 wrote:
i also liked the Great Egg Race


With Dr hans wolf...
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thx1138
World Chat Champion



Joined: 06 Oct 2005
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PostPosted: 23:49 - 20 Jan 2022    Post subject: Reply with quote
Nobby the Bastard wrote:
thx1138 wrote:
i also liked the Great Egg Race


With Dr hans wolf...


Heinz Wolf

https://en.wikipedia.org/wiki/Heinz_Wolff
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ZebraDriver
Scooby Slapper



Joined: 13 Feb 2011
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PostPosted: 19:22 - 21 Jan 2022    Post subject: Reply with quote
Me and two of my mates got as far as the auditions for Scrapheap. We realised too late that the way to get on the show was to be good entertainment for the watchers, it was fuck all to do with your ability to make stuff.
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Polarbear
Super Spammer



Joined: 24 Feb 2007
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PostPosted: 19:34 - 21 Jan 2022    Post subject: Reply with quote
ZebraDriver wrote:
Me and two of my mates got as far as the auditions for Scrapheap. We realised too late that the way to get on the show was to be good entertainment for the watchers, it was fuck all to do with your ability to make stuff.


You see in those days, a pretty girl with a low slung boilersuit. A smart ass and a bloke who grannys loved. Sorted.

Nowadays, Black, brown, trans, queer (see any channel 4 production) and a token honkey, Laughing
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P.
Red Rocket



Joined: 14 Feb 2008
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PostPosted: 20:35 - 21 Jan 2022    Post subject: Reply with quote
Polarbear wrote:
Nowadays, Black, brown, trans, queer (see any channel 4 production) and a token honkey, Laughing


https://media1.giphy.com/media/3ELtfmA4Apkju/200.gif
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Polarbear
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Joined: 24 Feb 2007
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PostPosted: 12:30 - 22 Jan 2022    Post subject: Reply with quote
Sorry, just watched something called the great pottery throwdown that wifey had on and they must have scouredBritain to find PC contestants.
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Old Thread Alert!

The last post was made 2 years, 92 days ago. Instead of replying here, would creating a new thread be more useful?
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