Well, I meant a centrifugal belt driven compressor. An exhaust driven compressor doesn't have the same problem because the compressor speed is NOT fixed in relation to engine speed. I can make a great argument for Roots or Lysholm design superchargers, or for turbochargers. There is no way to make a good argument for a centrifugal supercharger on these engines, at least not one based on performance.
Hi Duk, Yup, I am a little dense sometimes! I just have this reflex action, when someone says Alfa and centrifugal in the same sentance, I say NOOO, not unless you want to lose to every other forced induction car on the road.
Its been a long time since some new hardware has been presented anywhere for the 1.8T engine. Well, after some deliberation with Paul Spruell and CP, here is a new forged piston for these engines, which will accept the well-proven factory rings. Slight valve cutouts are evident and CR is 8:1 (std CR is 7.5:1). Weight is 448gr, 11gr less than the std items. Here are a couple of pics from the first production set I got yesterday next to a std new piston. P.Spruell has been instrumental in seeing this project through and he plans to delve further into the 1.8T and TS parts world soon.
Jim K.
Ok, we all know the 1.8T can make lots of power. If components are not up to par, things sometimes break, but I didn't ever think I would see something like the pictured item! The particular 1.8T has ~280 wheel hp and 38kgm (275ftlbs) of torque. The owner loves stoplight rubber and apparently the std flywheel has had enough! I am amazed at the way it btoke! I suppose too much traction did this but G.Gordon would know more about this!
Jim K.