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I am gratified to have all these responses! I have used corian in one Tiny IC Twin I designed. Running it for a minute was fine, tuning for highest RPM took longer and the corian started deteriorating. Mostly it is the result of bad design. I did hit 10,400 RPM and was surprised nothing...

I was just looking at various spark plug insulating materials. For "ULTEM" I found" Material Properties of Thermoplastic Ultem – Polyetherimide, PEI "Ultem® is the ideal thermoplastic choice for demanding, high-heat applications. This polyetherimide material can withstand continuous operating...

I have seen comments from respected members about using PTFE (Dupont brand = Teflon) as an insulator core for a diy spark plug insulator. Some valid comments dealt with the difficulty of machining this material, and I agree. But... Working on a video about my Tiny IC redesigned as a twin I...

I took it out of the display and into the shop. Started right up even though I hadn't done anything with it for 10 years! Took a quick video and some pics. Will make a new thread in a day or two

I havent been here on the forum in years. Add another count of 2 for the number of these made, or maybe 3? The second one I made I redesigned as a twin. I need to make my own thread about this I think!

That looks great! Quite an ambitious project making a gearbox. I look forward to following along. Lee

Since this topic came up again... This page explains the differences between 2, 3 and 4 wire coils and what vehicles typically have each. It says Ford and Chrysler typically use 2 wire coils. http://www.tirereview.com/Article/96901/coil_on_plug_ignition_the_wired_differences.aspx Lee

This just makes me drool :) I need to go back and see how you made those beautiful exh pipes Lee

Tony, can you comment on the depth stops on the drills? Do they have just one locking screw? I would have thought that could just happen to land on a position on the drill where it would just catch an edge on the spiral and tightening the locking screw would move the stop a bit off where you...

Nice job on this, and thanks for the write up. I now will have to build one of these! More on the long todo list! Lee

That base looks amazing! Very inventive and the carbon fiber makes it look very high tech Lee

What a big project. Did you have to buy materials out of your own pocket? Lee

Great job, if you didn't tell us I wouldn't of thought that is a first build. Lee

Great work Jan as always. It's nice to see you posting here. Lee

Good to see more posts, really beautiful work. I have to keep reminding myself how small this is, the detail tricks me. Lee

I find your work amazing. It is great to see such nice work along with explanations. Keep going! Lee

This is getting exciting! OK it was exciting all the way, but even more now! ;) Lee

Very nice looking! The wood base looks great, as does the engine itself Lee

Nice tutorial. I really like the use of JB Weld to make the casting look, I must try that! Lee

I think he means making the gaps on the hob bigger, which will result in bigger teeth, right?