Demon V8 (multiplied 1.5)

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My pistons have no taper or diameter reduction on top.
These model engines have no hardened parts, camshafts, crankshafts, valve seats etc, so they can't run continuously for hours and hours, just a few minutes each time.
This means that they do not reach high temperatures, in my opinion the conical or smaller piston on top is not necessary.
Also the piston drawing , designed by Steve Huck does not require smaller on top.
In any case reduced on top it can be done, it is a technical perfection absolutely necessary for larger engines

Quite agree with you in all aspects.
 
You are making great progress can't wait to hear it run make sure you post a video if you can.
 
The piston rings

IMG_9101.JPG
IMG_9102.JPG
 
https://www.ebay.de/itm/55529-2-Ach...688489?hash=item544b7c4629:g:0LgAAOxyepRRvzFx
Hey Foketry this is the tilt vice.
If you have no other choice to get it, we find a solution.
Depence on shipping costs to Italy.

ok thanks for the information, but today I bought this one in England
https://www.rdgtools.co.uk/cgi-bin/sh000001.pl?WD=tilting vise&PN=100mm-Tilting-Machine-Vice-904.html#SID=356
I hope the quality is satisfactory, I think it's made in China
 
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I don't have a tilting vise but have seen Groz in a store that didn't look too bad. They are from India I think.
http://www.groz-tools.com/index.cfm?md=Content&sd=Product&ProductID=114

Like Asian tools, the quality can vary a lot for what looks generically like the same thing in a picture.

I know India well , I have been many times for business before my retirement
I still have Indian friends but the costs and transport times are too high from India to Italy
Tanks
 

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