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Old 09-30-2017, 08:35 AM   #47 (permalink)
Jack-Lee
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Join Date: Jun 2013
Location: Germany
Posts: 125

Partygurke - '90 VW Polo 2F
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Rodi - '04 Smart Roadster Coupe
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Hi,

i build the enginie completly new.
Now 1.4l (79mm Stroke now instead 72mm) with a forged crankshaft.
I used new Pistons from a Honda D15 Engine and H-Rods. The Rods guided over the Piston to reduce friction loss. The Head was changed to newer Model from the "6n Polo",with much better port geometrie. I optimize the ports and the valveseat. The valves lathe down to 6mm shaft and better valveplategeometrie.
Compression are now 12,2:1.
And i build in a oel"heater". This little thing heat up the oil via the coolingwater. At full throttle this heat exchanger cools the oil to max. 100-105C.
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