DervMafia Eddy Current Dyno Upgrade

[darrenjlobb]

Well I thought after people found the last Dyno thread quite interesting that I would share this here to for anyone who is interested.

As most people know back along I bought and rebuilt a Clayton water brake chassis dyno for use in the workshop etc. Well after using it since putting it in, I have had numerous people offer good money for the unit, so ended up putting it on ebay to get an idea of its value, which turned out to be quite a bit more than expected, enough so that I realised I could likely fund a bigger / more capable unit pretty much entirely from the sale of the old one provided I could find something that needed work, hence cheap!

So the decision was made / took a risk and put it on EBay for real and let it sell, of which it did, so the time came to remove it!

So first step was to get all the covers etc off from around the dyno and begin dissconnecting everything..




Followed by splitting the dyno in half, and lifting it out:








Leaving a rather dirty messy hole (Amazing how much crap builds up in such a short period of time!)




So carried on removing the water tank / control gear etc and got everything up in the shed ready for collection:




Tried to label up all the wiring / plumbing to make it easy for the new owner to get setup




And then the chap turned up, and we managed to squeeze the entire thing into the back of a relay van!!




So that marked the end of that, which given the amount of work / effort was quite a sad day, but after managing to find a replacement unit, were able to concentrate on getting that in from this point on!

I managed to find a Eddy Braked Sun ram for sale up country, which after speaking to the guy was pretty much bare, as in a bare dyno with no control equipment, which is exactly what I was after as these sort of situations are normally sold cheap as people want plug and play and this was far from!

So after we did a deal, Anton very kindly went up in the van to collect it and drive it down to Cornwall (many thanks once again!!)...

The new unit should be a much better unit all round really, being Eddy Braked, it will enable me to put the computer in full control of the load, allowing for quick and easy power runs , and easy steady state mode, along with the great advantages of instant responce from the retarder (ideal for our diesel creations!). It also has much larger rollers (double the size) meaning more traction, and also closer coupled, meaning less issues with super low cars....And also features an air lift, which will safe the tyre abuse getting out with cold tyres!

So first step was to open up the hole in the floor, as the new unit is much larger, so out with the air chisel, didn't bother borrowing kango for this part as concrete not that thick....






Bit of a dig out:





Next step will be to lay a new concrete pad in the base of the now much deeper / bigger hole!

Thanks for reading!