Quote:
Originally Posted by PeteKz
Re recreating Chevy cylinder heads: Hah, hah!
Like most engines, the cylinder head seems to be the most fertile ground for improvement. Keep us posted what you do there.
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It became like that saying, "you can keep feeding a dead horse".
Valve angles limit the Valve sizes, only so much port size can be had and the air flow limits what can be turned into Torque.
Everyone has their magic wand. We were limited to what ours would do. Then ours stopped working so we decided to get another bigger one with bells and whistles.
I'm always puzzled with the HP numbers often shown. Having flowed both by bench and CFD, the air these heads can flow has a limit. If you calculate the amount of fuel required to make the stated HP number, the air flow required is beyond anything possible. Engines are mechanical objects where performance can be found on a hand held calculator.
When the air limit is reached you have to dig deeper and waive that new wand even harder. So, equipped with our new wand, we are looking at ways to mange the air we have better.
Chasing numbers that others "have" is a fools errand. Learnt that years ago. One of the first rules of engine development I was taught.