Question on port matching
Below is the port match on some of my stuff. This is ideal when your looking to make some really good power. The intake to head surface is smooth, level and equal all around without a surface to catch anything on. There is no argument on this from anyone I think.
What I was saying is if the intake window is smaller, this would be more desirable than having the intake window to large where the air and fuel crash into the cylinder head.
Before anyone starts saying and jumping up and down on how your going to “Kill” power, be aware that, that statement is incorrect to one degree or another. Why? Because it is a extremely broad statement to make that assumes on top of it all that the engine being discussed (no engine has been called out) is being built to make what we will call high to extreme power levels. Let’s make this level 1.4 HP per of CID to 2 HP per cube.
So that’s a 340 being built to 476 hp to 680 hp.
Port matching here is what I would call imperative for best results.
What about lower HP builds? Let’s say these are with stock heads or OOTB port sized non ported Edelbrock heads or other off shore heads on top of a stock list ones engine or one rebuilt with a compression ratio of no higher than 10- 1. We will make the power levels up to 400HP. That’s pretty easy to make. You can still use a small cam with the aluminum heads and get there.
I don’t see a “Killing” of power but won’t argue a port matching would help.
How about we take it down a notch to a cam of 224@050 with stock heads? Am I still “Killing” power!?!?!”
Best power will be made with this below.
Below is the port match on some of my stuff. This is ideal when your looking to make some really good power. The intake to head surface is smooth, level and equal all around without a surface to catch anything on. There is no argument on this from anyone I think.
What I was saying is if the intake window is smaller, this would be more desirable than having the intake window to large where the air and fuel crash into the cylinder head.
Before anyone starts saying and jumping up and down on how your going to “Kill” power, be aware that, that statement is incorrect to one degree or another. Why? Because it is a extremely broad statement to make that assumes on top of it all that the engine being discussed (no engine has been called out) is being built to make what we will call high to extreme power levels. Let’s make this level 1.4 HP per of CID to 2 HP per cube.
So that’s a 340 being built to 476 hp to 680 hp.
Port matching here is what I would call imperative for best results.
What about lower HP builds? Let’s say these are with stock heads or OOTB port sized non ported Edelbrock heads or other off shore heads on top of a stock list ones engine or one rebuilt with a compression ratio of no higher than 10- 1. We will make the power levels up to 400HP. That’s pretty easy to make. You can still use a small cam with the aluminum heads and get there.
I don’t see a “Killing” of power but won’t argue a port matching would help.
How about we take it down a notch to a cam of 224@050 with stock heads? Am I still “Killing” power!?!?!”
Best power will be made with this below.