merc heads 2 Degree angle to help eliminate pinch

[eli]

was thinking a 2 degree angle on heads will direct more to the spark plug instead of pinching . anybody think of this
machine head for proper squish ,dome and cut 2 degree toward spark plug , create less hot spots direct fuel charge inward ? detonation ?

[FMP]

Tightest squish at transfers to force the front up and center. Could see it on a XF but if depending on port alignment on a looper?

[racer]

Most all the F1 engines are running an angle on the squish.

[Chaz]

It's a good move . As the crank roll's up and over TDC the thrust load rocks from one skirt to the other. Coming up to TDC the squish area goes negative ( larger at the perimeter than twords the center) first on one side then the other , essentially cutting off the flame front .

[BoomerMuskoka]

my after market billet heads for my 2.5l have an angled squish and i can have that angle adjusted to any degree, as well as thickness.. i cant remember what i'm running for squish i do remember they were on the "safe" side.. they were made by GeigerTec..

[powerabout]

http://www.torqsoft.net/squish-velocity.html
I wonder if domed piston helps with this?

[bigbluechevy454]

You may get may answers and all maybe right but from my testing it doesnt make a difference. If you tune your engine to either combination This is with a merc setup for drag.

[eli]

thanks for all info .

[rude tim]

Rule of thumb is 1 - 3 degrees for squish in 2 stroke motorcycles.