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Old 07-07-2004, 09:32 AM
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Pete850
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Default RE: GSP Spitfire ARF build

The supercharged YS .91 in the review puts out around 40% more power than the TT .91.
No wonder it was so sprightly......I guess the supercharged YS .91 has a similar output to a standard 1.20 4-stroke. It's all starting to make sense now......

Pete