I was in for the race cam, injector, map and Thomas chucked it on the dyno and wondered why pickup was so slow and gutless!
Quick check found the bypass valve was buggered.
Swapped it over and yes, added the missing 30bhp back!!
Tried to put me off the cam etc, as that only added 20bhp and the difference I'd notice with the new valve would be huge. Which it was.
I still had the cam etc done though!!
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