Let's see how much m20 heads suck.

[digger]

how consistent are the tests, a large clay bellmouth at the opening would seem to add some variability, why not get something solid that bolts on and has some length to it like a runner?

[ForcedFirebird]

Soon. We have to make a testing tube to be accurate. A flange and a few inches of piping welded up will do the trick.

Today we will test the "ported" head fully to see how consistent the previous owner was.

[TobyB]

Nice! Howbout exhaust?

t

[ForcedFirebird]

For a small fee we can flow any BMW head that is sent.

[e30 gangsta]

Will you do a myster-e head? I should add, I can't afford to provide one, sorry. I do like this thread!

+1 that would be cool

[kronus]

would be interesting to combine this with cam data, maybe

[frankenbeemer]

Will you do a myster-e head? I should add, I can't afford to provide one, sorry. I do like this thread!

[ForcedFirebird]

Our findings on a bone stock head randomly selected:

[ForcedFirebird]

Kronus would not be anything in this thread without the inspiration for his artistic ability!

[frankenbeemer]

Kronus 1, forced firebird 0, continue.

Interesting, subscribed.

[ForcedFirebird]

i'm wanting to see #s

:p

[ForcedFirebird]

Soon!

I can tell you this garage "ported" head that came from elsewhere flows worse than stock (158CFM vs 171CFM @ 28" .400" lift).

Flowing all the intakes to have a solid comparison. We only flowed one port on the "ported" head so far and a few on the stock head.

[Cabriolet]

i'm wanting to see #s

[ForcedFirebird]

Lol!

Rest of what post? We are flow testing m20 heads, not much more to it.

[kronus]

about this much?