milling l92 heads
Simply decreasing the volume in the chamber by flat milling, should have no relevance to port flow, or flow past the valve seat curtain area into the cylinder.
I could be wrong, and if so , please go into detail about why I'm wrong.
Thanks
Last edited by 3pedals; Jan 27, 2011 at 06:40 PM. Reason: spelling
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because you have to realize, the chamber is an extension of the intake runner ,so changing the shape of the chamber,can have an effect on the flow of a cylinder head
thats why as heads get larger valves or go up in runner size,(for ex tfs heads in 220,235,245 etc)you generally see an increase in chamber size and bore adaptors used to flow them which all help to unshroud the intake valve as much as possible
its amazing when you move a head over one way or another, on a flow bench the results you sometimes will see
thats why as heads get larger valves or go up in runner size,(for ex tfs heads in 220,235,245 etc)you generally see an increase in chamber size and bore adaptors used to flow them which all help to unshroud the intake valve as much as possible
its amazing when you move a head over one way or another, on a flow bench the results you sometimes will see
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because you have to realize, the chamber is an extension of the intake runner ,so changing the shape of the chamber,can have an effect on the flow of a cylinder head
thats why as heads get larger valves or go up in runner size,(for ex tfs heads in 220,235,245 etc)you generally see an increase in chamber size and bore adaptors used to flow them which all help to unshroud the intake valve as much as possible
its amazing when you move a head over one way or another, on a flow bench the results you sometimes will see
thats why as heads get larger valves or go up in runner size,(for ex tfs heads in 220,235,245 etc)you generally see an increase in chamber size and bore adaptors used to flow them which all help to unshroud the intake valve as much as possible
its amazing when you move a head over one way or another, on a flow bench the results you sometimes will see
Are you saying the flow is effected only if the head milled vs. being cast with a small chamber?
My understanding is that small chambers have better short turn flow.
if the port is designed to work with a certain style chamber ,from the get go,then the shape of the bowl,seat,valve job ,port etc, can be designed to have the correct shape for the intended chamber size
