Originally Posted by
Rod-Tarry
Thats correct the bigger the Turbo the harder work it is to keep it on the sweet spot. I got to grips with it in the end but obviously 800 is not going to be as easy to drive as 500. The biggest improvement to my car would be a 4.1 diff it would make 5th into 4th etc & so much easier to drive. It would however drop the Topspeed from 217mph down to high 190's. I search ebay on a weekly basis as Jag did do that ratio but im told its hens teeth & diamond expensive but it may turn up.
ive got one of my parts suppliers trying to source me one of these now rod, if i can buy it through the company im gonna get one.
i dont suppose you know how similar the 9180 is to a gt40/42 do you, as in positioning on the manifold and clearance between the head and inner wing ? im very tight for room both ways with the gt40r.