Originally Posted by RC45
Mad fun track toys, and the twin-Busa V8 is a fantastic little unit - a bit over priced but fantastic none the less - and should make these beasties fun in small doses.
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I think you're confused with the Powertec 2.6L V8 which is used in the Radical SR8. That's the engine constructed from 2 Hayabusa 1300cc engines. The RST-V8 was originally based on 2 Yamaha R1 engines, but evolved through the years into their own design with the only original parts still used being the cylinder heads.
Here are 2 vids of the original N/A RST-V8 in its previous state of tune producing 340bhp. More than enough if you ask me. Listen to the glorious induction bark of 8 individual throttle bodies!