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Old 01-23-2011, 08:25 PM   #14
Dare to be Stupid
bgoodsoil's Avatar
Joined: Jul 2008
Location: Washington, DC, USA
Oddometer: 4,608
Hey thanks for that! I'm learning a lot in this thread already.

I guess the question is this: where does that Siebenrock kit fall on this? Is it the 'expendable racer' '100 octane' piston or can we run US pump gas (93 octane is the good stuff) and still keep the longevity?
But on the other hand if your comparing 30 year old pistons (and their technology) with newly developed and perhaps coated slipper type pistons then tbh they will be about the same or the newer one (like for like) will have a longer life.
Anybody know if Siebenrock's pistons are coated? The cylinders are Nicasil. I guess Stagehand'll have to test this one out for us.

edit: from their site:
To reduce the thermal loading on the machine, we recommend the fitting of an additional oil pan distance ring and/or an oil cooler for all Power Kit conversions.
Here's your homework Stagehand: fill up on 87 and see if you hear a tink tink noise.
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