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> Cylinder head flow data
lmcchesney
post Jan 28 2004, 06:26 AM
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Does anyone have ranges for Type IV cylinder head flows with customary pocket porting and port matching? I believe is about 200-225CFM at each port. Also, any data on the effect of large valves on the flow rates? Any data on port velocities?
Yes, I know that miminal changes can produce significant changes in flow. However, in reality, there is not a lot of variations in the P/P of these heads.

Thanks,
L. McChesney
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ChrisFoley
post Feb 7 2004, 04:28 PM
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QUOTE(lmcchesney @ Jan 31 2004, 05:46 PM)

We reviewed the ruel books again. SCCA seems open for D-jet or other FI. PCA still requires D-jet to stay in the street prepared class. I was hoping to find a tech inspector for both to review and confirm our inturpertion.

The cylinder heads (big valves) and displacement you are working with will automatically bump you up to the Modified category in both SCCA and PCA if I am not mistaken.
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Posts in this topic
lmcchesney   Cylinder head flow data   Jan 28 2004, 06:26 AM
DNHunt   Check over on Shop Talk Forums. I remember seeing ...   Jan 28 2004, 08:05 AM
SirAndy     Feb 1 2004, 02:04 PM
Mark Henry   <...   Feb 1 2004, 02:07 PM
Brett W   I am not saying don't try it but I can't u...   Feb 1 2004, 04:11 PM
Bleyseng   No Mark, it was the fact that they changed the VE ...   Feb 1 2004, 09:44 PM
Jake Raby   When you use "Cast iron clunkers" (103s that ARE N...   Feb 2 2004, 12:03 AM
ChrisReale   <...   Feb 2 2004, 12:52 AM
seanery   yes.   Feb 2 2004, 07:24 AM
Brett W   What are you talking about? Who got banned?   Feb 2 2004, 02:03 PM
Mark Henry     Feb 2 2004, 04:26 PM
Racer Chris  
 

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