Q since the ET's have a 58 cc chamber?
A Our Heads can be ordered in a smaller chamber size if wanted. This test was "Same compression CC on the heads".
Q Wouldnt the runner sizes make a difference, 205 vs. 215?
Q I agree, not fair comparrison cause they are not the same size head.
A If runner sizes, this small, where to be a huge effect from a 205 to 215, then there would be a trade off for low end torque to upper end horsepower. But a comparison such as this is equal due to that these are both our smaller street heads.
Q Put a milled down AFR 225 against the 215.
A Why not do a ETP 225's to AFR 225's? That is more a equal comparison. |