Ordered My megasquirt

I know it sounds odd but megasquirt is a locost diy engine management system based on the Motorola MC68HC908GP32 processor - I've got a head start on this as i studied electrical and electronic engineering at Swansea uni, and used this microprocessor for my thesis.

Anyway, you can build it yourself if you have soldering skills, or buy it ready made. It can run your coil pack and injectors, and even has features such as launch control, shift light etc.

It comes with free tuning software so you can accurately adjust your fuel and ignition timing, and it can be used with a wide band lambda sensor (you'll need a controller also) to provide feedback on weather you're running rich or lean....

More to come when it arrives.....

More photos and a couple of vids

Tiger avon Fuel tank

I sprayed the new fuel tank and fitted it to the rear of the car - you need to drill the chassis and straps to fit it.



















Next came the rear inner wing panels - Ali sheet cut to shape and riveted on with panel sealant - you can use silicone sealant if you want.


















Next came the roll hoops, I sprayed them up and bolted them on using a2 grade stainless cap head bolts so they don't rust. Again you ned to drill the chassis to fit them.


















Then I lifted on the bodywork, this needed a lot of trimming -

Around the rol bar:-

Around the fuel tank filler:-

and around the chassis rails:-

Skipping forward a few stages.....

So i have been building the car since Xmas, and i've only just started the blog......

http://www.locostbuilders.co.uk/ is usefull for questions and info/photos.....

as is

http://davesavon.locostsites.co.uk/

http://jonstigeravon.blogspot.com/

http://www.avon-kitcar.co.uk/

http://www.mytigeravon.co.uk/

http://www.coddys.co.uk/

http://www.tiger-avon.co.uk/

Here is a speedy run through of what I've done.....

Assembled rear suspension.... This went together quite easily, i needed to file the powder coating out of the holes to get the bolts through... The wishbones need to go round the right way, i ignored the weld on them and went by the slope of the tubes at the side (as in the book).


















Then dismantled the back axle - this is off a ford sierra.

The diff - i cleaned it up with with a wire brush on a drill, and fairy liquid, it took some time but worked perfectly. did the same for the driveshafts, and sprayed them with red oxide primer and black gloss.

The CV boots needed replacing, i got a stretchy boot kit off eBay, that comes with a cone to stretch the small end of the boot over the end of the driveshaft - use some wd40 to help it slide over the cone.

Next i fitted new oil seals to the diff, and replaced the rear wheel bearings.... Put the diff in filled it with oil till it was level with the bottom of the driveshaft openings - get a flexible funnel or you'll be there all day - Then i cleaned up and painted the drums and back plates...

To fit the back plates to the uprights you need to grind the corners off the uprights - you will see where when you offer them up.

Push the driveshafts into the diff then put the back plates on then the then the hub carriers. I replaced the brake cylinders with new ones off eBay and got new brake shoes - off eBay - and new fitting kit - of eBay. Putting them together is tricky - if you are worried take a photo with a digital camera before dismantling. Then the hub and hub nut went on. Then the drums

The front steering and suspension was pretty much assembled.... all i needed to do was put the brake disks on and get some brake pads off eBay - the front brakes are off a Cortina - then on went the calipers with a fitting kit and shims - off EBAY!!!!