Worse combustion chamber design ever? Saveable?
Yes, I agree with you. But I cannot see how this design would ever be a good idea. Even if they were directing the intake charge to get more 'swirl', it could have been acomplished just with the shape of the chamber like with so many other heads.
I’ll say it this way...the chamber gets filled by a pressure differential. Anything you can do to increase that pressure differential will make power because the cylinder will fill faster, longer and with a better quality air/fuel mixture. The burn will be quicker and cleaner. There will be less residual combustion byproducts in the chamber after blowdown, so less pumping loss.
Anything you do that decreases the pressure differential does the exact opposite. You lose everywhere.
And that happens without an increase in air flow, or a loss of airflow. As someone who is trying to make horsepower, you have to consider everything from the air cleaner to the tail pipe.
Flow isn’t everything.
You have to convince the air to go where you want it to, and that’s into the chamber, in a form that is as easily combustible as possible.
It’s about SHAPE and size. You get those two things correct and the flow will take care of itself.
You want to look at how much HP per CFM of air flow you get. If you have a port that flows 400 and it makes 600 HP you need to see why it’s not making power.
The flow bench is an excellent tool if you use it correctly. It can and will lie to you if you don’t accept it’s limitations. Flow isn’t everything.
