The only clutch I found that could handle the extra power and torque was a Helix ( http://www.helixautosport.com ) competition plate and cover for a 1.3 Uno Turbo. From memory they say they are good for at least 200hp and so far it's been faultless, albeit a little harsh on take up. I agree with Jeff in thinking you only need the Uno 1300 flywheel if you are using it to trigger the ignition. The 1400 Uno flywheel won't fit without a lot of grinding of the bell housing. I was advised against going too mad with lightening the flywheel as apart from the obvious safety concerns it was suggested that the benefits to be gained are no so great with turbo engines.Yes, thanks for all input it has been very useful. This is a world class forum.
I had difficulties finding EV1 injectors in range of 350-400cc so yesterday I ordered 440cc MSP injectors that will work with my hose mod and top adapters. Lots of people in UK are running their UT's with even bigger injectors w/o problems, and I think the super fast MaxxECU wll handle it just like you say Speedy Fiat. I also ordered individual Bosch ignition coils and a 4 channel (sequential) trigger so I am slowly getting there. Fueling done, ignition done, sensors done. Turbo and IC next... And I almost forgot, clutch. -Seems to be tricky with a X1/9 gearbox on an UT flywheel. OR, I'll eventually go for the X1/9 flywheel but finding a clutch capable of 200-250hp and lot of torque is not easy.