Goodevening all,

First of all, sorry for being this late too reply on this tread!

second of all, before I tell the compression values of my Seis engine, I need to tell that it’s still quite snappy on the pedal and it accelerates just as I would expect of an 800kg 39hp car. All the measurements are done with a closed throttle valve.

So… here they come: cylinder 1 gives me a compression of 80 psi, cylinder 2 gives me a compression of 100 psi, cylinder 3 gives me a compression of 95 psi and cylinder 4 also gives me a compression of 100 psi. I started counting cylinders from the side where crankshaft pulley is located.