My manifold is plastic and never really gets too hot. In any case even out on the road flogging the hell out of it the torque loss below 4K is very obvious. I can turn the water off and the car is much more responsive and crisp below 4K.
My turbo spools quickly and I reach full boost around 3200. The point at which I have the spray turn on (7.5) is probably reached before 3K. I don't want to raise the spray point though for two reasons. First it will have negligeable effect on the trouble area at 3-4K, and second I want (need) to provide a little lead time (small fractions of a second) for the water to get going for protection during high RPM transient conditions.
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11-05-2004, 08:51 PM
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