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Super Tigre's pattern hey-day ended with the G60 Bluehead. The later couple of .61 Tigres were good engines, but they were not the powerhouses in their time that the G60 Bluehead was. I've always wondered why they backed off of producing competitive pattern engines. OS did the same thing, but I doubt that it was intentional. For that matter, I'm not sure it was with Super Tigre either.

PDP only works with crossflow scavenged engines, IIRC. There is nothing "racing" about the X61, in spite of the marketing hype.

Some of the baffle piston equipped HB .61 PDP engines were pretty hot and pretty much stayed with the OS.60F SR unless a tuned pipe was used.

My memory isn't that good any longer. I just remember seeing the ST engines at pattern contests and never being impressed enough to want to buy one. I stuck with OS.

That fellow's price on eBay is too high, imho.


Ed Cregger