[PAUL K]

The heart-shaped chamber doesn't do a lot for full throttle power. Unless you're worried about emissions or how many total degrees of timing it takes to make maximum power you won't find much of an advantage using them. Sometimes they are a disadvantage

[Formulajones]

Originally Posted by PAUL K

The heart-shaped chamber doesn't do a lot for full throttle power. Unless you're worried about emissions or how many total degrees of timing it takes to make maximum power you won't find much of an advantage using them. Sometimes they are a disadvantage

And I've personally seen the bathtub chambers not require a bunch of timing lead on some engines being dyno'd despite what's posted on the internet. We've had 2 in fact that made best power at just 34 degrees. I don't call that much at all and I've had heart shaped chamber engines that needed more than that.

That's why we dyno