Need to make a plate to bolt coil on plugs to the valve cover. Not sure if perspex or similar would be up to the job. I think its well above its recommended in use temperature but it doesn't need to be very strong as long as it doesn't actually melt.

I don't know the exact temps, but it does go soft enough to mould at 100C. So it doesn't melt, but it would have no strength.

Page 11 of this guide should help - there's a nice chart at the bottom of that page. Page 37 also gives a max working temp of 80 - 85C.



[Edited on 27/12/15 by David Jenkins]

Aluminum is surely a better choice, easy to work with, and won't melt or soften at cylinder head temperatures, and doesn't become very brittle at low temperatures.

There must be some plastics capable of doing it, I'm sure I've seen production cars with a similar concept. But as I've found out relatively recently, 'plastics' is quite a large spread of products!

OEMs use thermoplastics reinforced with very short glass fibres in them for a range of non or semi structural applications. The range of plastics is vast! As above, I would suggest aluminium or a composite sheet might be worth a look.

G10 sheet?

Check out polycarbonate something like "Lexan" it takes much more heat to get it warm enough to bend

We've had PMMA creep at 40C, fwiw

I used lexon on my rocker cover and it warped with the heat of the exhaust manifold
I changed it to aluminium
jacko


engine 2

[Edited on 11/1/16 by jacko]