no boost!

[vertical escape 800]

hi guy's, i have an 07 m7 race gas turbo. last season i was running 9lb to 10lbs of boost no problem. i rode on the 29th of december and couldn't build more than 5lbs. i have a gready blow off valve wit a manuel boost control. i turned up the boost as far as it would go and had no results. all the lines are in good shape. any thoughts would be appreciated, thanx

 

[Kestrel2126]

ran a BD 07 race gas 700 last year, and can without a single doubt tell you that you have a significant exhaust leak. Check throttle body boots, as they tend to delaminate. I also blew apart the pipe at the seam last year, and had to reweld. That one can be hard to find if you have the stock heat shield on. Other than that, I would replace all of your exhaust donuts and springs. Mine only made it about half a season from new before I would replace them.