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Minimum Sensible Trailer Weight
dhutch - 25/9/09 at 09:41 PM

The university motor club is looking to get another shared ownership trackcar, and as this will not be taxed or insured, it will be trailered everywhere.

However as time goes on its increasingly hard to find anyone with a pre97 licence to tow the trailer so all of a sudden weight is a fairly large issue.

I have trailer for the kit, which combined weighs about 1200kg, which i can tow with the 306 and achieved a max train weight under the magic 3500kg.

So the question is, whats what lightest you could reasonably expect to get a very basic flatbed trailer. Say we had a 950kg stiped car (mx5?) could we get a trailer together for 250kg?

Daniel


l0rd - 25/9/09 at 09:53 PM

A striped MX5 will not be 950Kg as it is 940Kg fully built


dhutch - 25/9/09 at 10:44 PM

quote:
Originally posted by l0rd
A striped MX5 will not be 950Kg as it is 940Kg fully built
Interesting.
- Ive never owned or weighed one but i thought they where pretty much bob on a ton. Maybe thats the later models?


jwallbank - 26/9/09 at 07:27 AM

Proprietory trailers for 950/1000kg load come in at around 300 to 350 Kg - look at the Woodford lightweight range for a good idea of what you get for that weight (www.woodfordtrailers.com).

If you are prepared to put in a lot of work then building one yourself from say angle iron/box section will just about get it down to 250kg. Many years ago (probably 20), Indespension used to sell the plans for these DIY lightweight trailers but not these days. Alternatively, use an old caravan chassis (usually rated at 1000kg+) and put a basic platform on it. These chassis are cheap from a caravan breakers but very lightweight to start with.

The only other point I would make is check with your insurance company if they will cover you for towing a home made trailer - some insist on a "proprietory" trailer these days.


belgian2b - 26/9/09 at 07:35 AM

Hello,

my XTR2 is 500 kg and i have a trailer that is 200 kg.
No problem, except may be for the axle.
I should place rigid axle with bigger wheels.
It will cost me some 20 kg , but as long as i stay under 750 kg it's OK for me.

Gerardo


l0rd - 26/9/09 at 10:08 AM

Is is 940Kg according to wikipedia.

Depending on what you awant to do with it. You can always remove unwanted parts but if you add rollcage, strutbars etc you will soon gain some of it back.

Also, if you go for any of these try to get an import as they are better spec cars.

Lots of weight saving by removing the complete AC system (rads, pump,hoses,under dash unit, Be careful as the MX5 has an AC plug that connects to the ECU?), get a manual rack so you can bin the PAS system, spare wheel, Hood etc.


owelly - 26/9/09 at 07:24 PM

I built a very light trailer. I think it was around 120kg. I used 2mm steel for most bits and 3mm for the drawbar.






And as the trailer was so light, it was cheap to galv!