Had a couple of 480turbo's way back when - probably a bodge, but I used a bleedvalve in the turbo to wastegate pipe which was very effective - no idea how much boost it made, but the boost gauge was just about at the red, any more and it started misfiring. Car was still ultra-reliable, I was covering 35-40k a year back then (now 4-5k a year)
Made a significant improvement in the driveability of the car.
How I miss my (3) 480's - missus hates them :-(
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2009 Volvo V70 D5 (Polestar 225bhp) r-design 180,000 miles
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