This is meant as NO disrespect to ANYONE, but all this talk of 550bhp out of GT30s is getting a bit ahead of yourselves, as none of these engines have been near a dyno to confirm or deny the figures being bandied about
. I just think it is a bit over enthusiastic claiming power figures that are the absolute maximum the turbo can produce. I have seen a GT30 externally gated turbo on the dyno (0.82 a/r) and specced with the best of everything (tubular manifold, Swedish inlet, solid lifters, bla, bla, bla), it made 530bhp.
Now don't get me wrong, I actually totally AGREE with the advice given of a GT30 over a GT35 for 90% of the time, I just think some of the figures claimed shouldn't be (or should be clarified that they are unverified) until proven (but then you KNOW that is just ME, as I say that about everything
).
It would be great if Kelv had his mapped on the dyno, as then that spec of engine could definitely sold as a 5XXbhp conversion
, just as Harvey has done so many T34 / T38 engines, that he knows exactly what to do to achieve a gauranteed 400 or 435bhp conversion. These engines when then built up with the same specs, always make the same power +/- 2 to 3 bhp.
As I said, please don't take this as any dig at anyone, but you know how unverified claims are my pet hate
.