10/5!

"Cé hé sin" (michael-m-mouse) 05/10/2016 at 17:50 • Filed to: FSO/FSM, Syrena, 105, Two stroke

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Yes, we have a car which gave its name to today.

It’s Polish and has already been here tonight.

Meet the Syrena 105.

We see a tell tale puff of smoke aft and suspect it to be a two stroke. And we’d be right. The Syrena had yet another variation of the prewar DKW triple with the usual three coils, rear mounted fan and a shaft running along the engine to power the fan, Why a rear fan and radiator? Because it was originally designed for thermosiphon cooling which requires the rad to be above the engine. The bulkhead is rather higher than the grille so that’s where it went.

Emissions were as ever not a strong point.

. . > Cé hé sin 05/10/2016 at 20:33

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Great job as always!

There are a few things I’d like to mention about the engine though. First of all, Syrenas were originally 2 cylinder cars (engine code S-15 for the original and S-150 for the uprated version) and there’s no consensus as to why those engines were so similar to DKW engines. It’s possible they were based on a patented design that was sold both to pre-war Germany and pre-war Poland. Still, a Polish engineer named Fryderyk Bluemke is credited with creating Syrena engines.

The 3 pot version of the motor was introduced in 1966 with the 104 model, the last one produced in FSO before production was switched to FSM. According to sources I found this modernisation was a fully Polish job.

Also, interestingly there were some Syrenas that were fitted with Wartburg engines. They’re rare and designated as S models (Syrena 102 S and 103 S).