I'll be running meth with my MP45 and am pretty set on running direct port nitrous as well. Since the meth will be pre blower and the nitrous post blower, should I continue to run meth while spraying?
Heavy ass N-body
i would'nt see the point in continuing to run meth while running the n2o, as the meth act's as a sort of intercooler not power adder, and n2o has a cooling effect of it's own.
try contacting vitaminE(aka eddie). that would be the guy to answer this one.
meth is also a power adder . as long as it is tuned for meth you gain power....the water in the mixture acts as an intercooler. i went from 207whp on my m45 before meth then tuned with meth injection got 220whp so it is a power gain when tuned. but running meth pre blower with a direct port will work fine. just make sure you can tune it good.