Speedmaster heads for SBM

B3422w5 said

I know Chris really well, we are friends. He isn’t just a class racer head guy.
He does heads on an NHRA fuel funny car, and tons of other stuff.
His whole world is smaller and torque and velocity. He apply’s it to anything he does.
Different…maybe.
my whole point is guys get ground up on here all the time for having an opinion ( speaking of the Dan guy in this thread) that doesn’t sit well with the experts on here.
I am not an expert about anything, I readily admit it. But teach, don’t kill guys. Damn.

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So it’s ok to keep posting wrong information? That’s cool with you? It’s not with me.

I’ll say it again. If it wasn’t for rules, the guy you mentioned wouldn’t be running that valve and port. No way. If he did and no one else had to, he would get killed.

You said it yourself. It’s all relative. No one is saying use the biggest valve and port you can fit.

But it’s stupid to claim that a 2.02 valve will kill enough velocity to cause a significant loss of torque. That’s bullshit and we both know that.

Its all about the SHAPE of the port moreso than the size.

I can show you three different 200 CC ports that are all radically different from each other. And they all won’t make the same power.

Dealing with airspeed is a huge deal. Too much airspeed can be just as detrimental to making horsepower as a slow port will.