DOT Head for boost??

[TiZiK]

Sitting in the airport and browsing the archives and had a thought.  With the DOT head having better ports, larger squish and higher compression, has anyone used one for a boosted application? 

I have a selection of different thickness head and base gaskets so compression can be lowered accordingly.  Just wonder if the ports and squish would be an added benefit?

[dupersunc]

The squish isn't any different is it? either way adjusting the compression via thicker base or head gaskets fucks your squish anyway.

Edited February 25, 2022 by dupersunc

[Gixer1460]

Absolutely no point fitting a head that provides high CR then fitting gaskets to lower the CR and destroy the squish !

Maybe if you hog out the chambers, and fit deeper dish pistons to control the CR, fit normal HG, retain decent squish, it may be some benefit?

[TiZiK]

Makes sense. A lot of work for nothing really in regards to squish. 
How different are the ports between a G head and a dot head? Is it just a steeper angle on the dot?

[clivegto]

13 minutes ago, TiZiK said:

Makes sense. A lot of work for nothing really in regards to squish. 
How different are the ports between a G head and a dot head? Is it just a steeper angle on the dot?

Yea the dot head has the steepest in flow but a small combustion chamber but the same size valves as the 1100 & 1200.

[TiZiK]

Just now, clivegto said:

Yea the dot head has the steepest in flow but a small combustion chamber but the same size valves as the 1100 & 1200.

Might not fit the slabby then. Already quite tight with throttle bodies and plenum. 

[clivegto]

2 minutes ago, TiZiK said:

Might not fit the slabby then. Already quite tight with throttle bodies and plenum. 

Yea they do I have a flowed dot head on a 1052 motor and it goes like a screaming banshee. Only the dot heads fit the 1100 & 1200's the other 750 ones won't.