Stock Super Victor against a stock Victor340.

[pittsburghracer]

Just so I don’t confuse things I’ll start a new post. These are flow numbers for a stock out of the box Super Victor and a stock out of the box Victor340. I was hoping to also compare numbers after porting but as of today I haven’t received the customers 2 inch spacer that will be blended onto the Victor340. These numbers are from the same head on the same runner.

 

[srduster340]

What a difference between .400 - .500 lift.

 

[rumblefish360]

What is your notation on the cylinder head at .600?

 

[B3422w5]

What’s the deal at half an inch

 

[pittsburghracer]

What is your notation on the cylinder head at .600?

This is one of two customers that wanted to use smaller head gaskets. On both of those heads they flowed some nice numbers but they both had some mid lift flow turbulence. When you gets these heads nicely up over 300 cfm the bigger chamber is needed. I will not take on any more work from guys desiring to run smaller head gaskets unless it’s with a 2.02 valve. I put in 1/3 more work for zero payout. Not going to happen again.

 

[pittsburghracer]

What is your notation on the cylinder head at .600?

Remember I’m seeing that five cfm bounce on a digital bench. You would never see that on a fluid manometer

 

[318willrun]

Pretty close except .500 ....