Petro's Project ERL Superdeck 427 w/ Whipple 2.9L
08-30-2017, 11:18 AM
#433
So dimpling the piston is done in an effort to what? Create a better burn where there is a fatter mixture? I would be nervous of creating hot spots in the chamber that could lead to detonation.
If it worked dont you think you'd see stuff like this on professional drag race vehicles?
If it worked dont you think you'd see stuff like this on professional drag race vehicles?
08-30-2017, 12:49 PM
#436
So dimpling the piston is done in an effort to what? Create a better burn where there is a fatter mixture? I would be nervous of creating hot spots in the chamber that could lead to detonation.
If it worked dont you think you'd see stuff like this on professional drag race vehicles?
If it worked dont you think you'd see stuff like this on professional drag race vehicles?
If there are super rich wet vortices right where the plug is it can cause the spark plug to have a hard time firing...by "blowing" out the spark from the high swirl and being very wet. I already tightened my quench up by using a .041" head gasket. (Might as well make use of the quench pad on the piston since it's not a full dish) So my intent is to not create a better burn where the mixture is rich but to make a more even mixture in the chamber as a whole. A more even mixture means faster burn, lower exhaust/chamber temps, less timing needed and more power. I highly doubt dimples will lead to hot spots or cause detonation by nature of their shape.
I don't know of any professional race teams that give away their secrets. This may or may not be one of them. I figure what the heck why not give it a try.
I figured why not since the piston crown counts for 50% of the combustion chamber.
Last edited by Petraszewsky; 08-30-2017 at 01:02 PM.
