Quote:
Originally Posted by ryanmt
A JP4 lump on vts management seems to run leaner at WOT, I put a 3.5bar FPR in to try make it a bit better. The GF quite often sees 45mpg average from her engine, it is in an AX though.
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ax is around 15-20%lighter than a saxo.
jp4 is higher comp ,dif cam spec.maybe sensors are not same postions ,head is dif shape ,spark plugs are different --lots of variables