I've had quite a bit of experience with the Ilmor Viper V10s having raced them over in the USA last year and am now running them in the King of Shaves-Fountain Worldwide entry in this season's Powerboat P1 series.
I would suggest that anyone interested in usuing them for pleasure or racing should visit
www.ilmor.com and download the information available.
If you then want to purchase either a 550, 625 or 7-10, then send an email to
chris@proveeoffshore.com and we can then work out the best deal for you.
And for whoever said the engine sounds 'wimpy' must have a hearing disorder.