Originally Posted by
Jay,
where did you get that shite from mike ? was you told this to justify a bad map/build?
if the fpr reg comes off at high rpm and high boost it fuel cut the engine rather than just leave it lean enough to run like a slight air leak would
Jay,
I had driven the car to the limiter on NUMEROUS occasions without fault, and it was in my early days of Cosworth ownership, so as you know, Cossies run really good for a short time when they are lean
. I'd obviously recognise the symptoms now I have more knowledge (like I did when one of my fuel pumps packed in on my 500bhp Sapphire engine, I picked up on it instantly and had it rectified before any damage what-so-ever occurred - but it takes experience to recognise this).
I only discovered the FPR vacuum pipe had come off the car when it was too late - the damage had been done
.