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Thanks for replies. All comments welcome, even constructive criticising ones. Any bits look slightly odd? Personally I don't like the crank pulley. Looks like it came out of a meccano box. Trumpy, the plan is to fuel inject it. I want to make 2 small injectors and hide them in the vee of the...

Well, it's been a while. Been busy on other things. Managed to get a few bits done, mainly on the belt runs, spring tensioner, etc. Then I started the oil pump. The miniature Aeroquip fittings came out ok. The braided hose is 5mm dia. cycle hydraulic hose. The pump seems to be a bit of a...

Steve, great engine, fantastic to see it run. Thanks for your build thread too, I've learned so much over the last year. Cheers, Keith.

Steve, sorry I noticed you've just put your final pics up. I would have waited a few days if I'd seen yours first. Apologies again. Yours looks great by the way. Keith.

Long overdue update:- I've been messing around with surface finishes, and outside bits, rather than making pistons etc. but that's the way I work, and it all has to get done eventually, so.. The cam covers have come out weird, but I think I like them. They are alloy, glass bead blasted, then...

Steve, that engine sounds wicked! I'll be happy if mine sounds like that. Congrats on a great build thread. If it wasn't for your engine I wouldn't have got anywhere with mine. Well done again. Cheers. Keith.

Hello there. Not much progress the last couple of weeks. Had a horrible mouth abscess so not felt like doing much. It's nearly cleared up so I'm back on it today. Thanks for your interest.

Thanks all. George, I don't appear to have any more pics of doing the exhaust than what's already been posted. I know at the start I wanted the tightest bends possible from 10mm tube, and I made the bender to suit. One essential part is the protractor for measuring the angle of the pull. Next...

Time for a quick update. Not got too much more done. I wasted a lot of time on an induction system, which sounded good in theory but it didn't look very nice, so it was scrapped. I then went for a plenum type system, with a twin throttle body. It still doesn't look how I imagined, but it's not...

George, I second everybody's comments, amazing job. One of the best things I've ever seen! Looking forward to see what you do next. Keith.

Vic, this is a standard calibration set for checking a 0-25mm mic. Keith.

Well it looks at the moment that tig welding the exhaust flanges may be more of a problem than I thought. However I wanted to see what the manifold looked like on the block, before I made the 2nd manifold. I decided to make the individual flanges and then countersink the rear faces. The pipes...

I've not read the Megasquirt manual yet but I'm sure it'll control anything I can throw at it. The problems are the injectors and the fuel pump. I'm saying they're a problem, but I've not had time to look into it yet, so they may be doable. I think the best spray pattern at this sort of scale...

I did think of a system along those lines,where a single solenoid opens and feeds 8 nozzles, each having a spring loaded non return valve. After pondering for a while I decided it wouldn't work very well at low engine speeds and idling. The quantity of fuel at these times would be miniscule and...

Hmmm... I think I need to go and read that Ferrari bloke's write up again. I remember he used a 4 thou' orifice but can't remember anything about fuel pressure. There's some clips of the injectors working on youtube.

George, just as a back up plan, could you screw something like an m2.5 bolt with a T8 torx head into your bolt and flush it off?

Lakc, I realise I could get it to run using just a single carb, but the thing is, my hobby is engineering, and has been all my life. I tend to get interested in something, planes, helicopters, full size cars, telescopes, whatever, and I make something in each interest, then get bored and go on...

The ecu's I've used have been map based. I chose this type as the engines were all supercharged. The main fuel graph has manifold pressure on the y axis and rpm on the x axis. All the injector pulse times are then entered into this graph, so this is the datum setting for the fueling. There are...

Steve, they are just pressed into the collector at the moment, I'm not sure how to fix them. I was actually going to wait until you'd done yours first, and take it from there. My mate reckons he knows someone who can tig weld hypodermic tubes together, so I'm going to follow that one up too...

Ha!, found it. First pic shows the tube bender I've just finished. I wanted to do the tightest bends possible in 10mm stainless. They ended up at 16mm inside radius on the bends. The tubes were filled with low melting point metal before being bent. The bends are so tight that they still...