Originally Posted by
rstdave
Seen a few of these at trackdays recently and been impressed at how well they seem to go with not alot of power really! Anyone know much about them, reliability/speed etc. Been looking at westfields with various bike engines: fireblade, blackbird, hayabusa, R1 etc but not knowing anything about bike engines don't have a clue which are the ones to go for or avoid! The bike engine ones seem to go for reasonable money and the idea of an engine that loves to be revved appeals somewhat lol. Any input/views welcome

i've just sold mine it was a Kawasaki ZX9R engines Stuart Taylor
the most popular engines ATM are the R1 & the ZX10R & ZX12R if you look around on Pistonheads and even go on
http://www.locostbuilders.co.uk/index.php
you'll find some for sale and loads of info on them, if you want cheap track day fun you can't go far wrong with a well put together BEC as for clutches mine had done over 7000 miles and it was still on original clutch with uprated Barnet springs.
they are mega fun and so easy to work on, just go get 1 and have some summer fun