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Indy CNC 295 SR or EZ Min Cross Section Area (MCSA)?

Posted By: BradH

Indy CNC 295 SR or EZ Min Cross Section Area (MCSA)? - 11/21/11 06:33 PM

Anyone on here able to provide a fairly accurate Minimum Cross-Section Area (MCSA) measurement for an Indy SR or EZ w/ ICH's CNC 295 cc porting? I'm curious how it compares to my CNC-ported Victors that show pretty simmilar flow #s but "should" (based on not being taken out to Max Wedge-sized entries) have a bit better velocity.

FWIW, the MCSA I measured on the Victors yesterday is 3.05", although it gets quite a bit bigger as the runner opens up into the bowl over the short turn.
Posted By: Brian Hafliger

Re: Indy CNC 295 SR or EZ Min Cross Section Area (MCSA)? - 11/21/11 06:40 PM

Quote:

Anyone on here able to provide a fairly accurate Minimum Cross-Section Area (MCSA) measurement for an Indy SR or EZ w/ ICH's CNC 295 cc porting? I'm curious how it compares to my CNC-ported Victors that show pretty simmilar flow #s but "should" (based on not being taken out to Max Wedge-sized entries) have a bit better velocity.

FWIW, the MCSA I measured on the Victors yesterday is 3.05", although it gets quite a bit bigger as the runner opens up into the bowl over the short turn.



Min. I belive on the 295 head is 2.8"
Posted By: BradH

Re: Indy CNC 295 SR or EZ Min Cross Section Area (MCSA)? - 11/21/11 06:44 PM

Quote:

Min. I belive on the 295 head is 2.8"



If you're correct, then so much for that "theory"...
Posted By: BradH

Re: Indy CNC 295 SR or EZ Min Cross Section Area (MCSA)? - 11/21/11 08:02 PM

While I'm on the subject, anyone know the same dimension for a Chapman 260cc Stage VI?
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