Building f22c head for boost... need some help
08-01-2011, 11:52 AM
#11
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For the cost, and your power range. Stock.
have a complete stock head, and it obviously isnt holding up reason im buying new stuff... I have a complete built bottom end and run 15 lbs everyday and drive it like i stole it regularly, i want somthing thats going to hold up to what im going to put it through... So thanks anyway though...
I mean the head flows enough stock to make 800+hp. Are you looking to rev it past 9-9.5k rpm? if so, then get some appropriately rated stiffer valve springs and call it good.
have a complete stock head, and it obviously isnt holding up reason im buying new stuff... I have a complete built bottom end and run 15 lbs everyday and drive it like i stole it regularly, i want somthing thats going to hold up to what im going to put it through... So thanks anyway though...
I mean the head flows enough stock to make 800+hp. Are you looking to rev it past 9-9.5k rpm? if so, then get some appropriately rated stiffer valve springs and call it good.
Originally Posted by bOOstd AP2' timestamp='1312140920' post='20833118
[quote name='RealStreet' timestamp='1311261843' post='20801064']
Ferrea Comp Plus valves for the F20C use their Nicekvac N80 Material which is good to 1850 degrees. Inconel is rated to 1650 degrees.
Ferrea Comp Plus valves for the F20C use their Nicekvac N80 Material which is good to 1850 degrees. Inconel is rated to 1650 degrees.
what you need to do is ask these sources "why." The Black Nitride coating to my knowledge is marketed as something to give the valve a smoother surface as it passes through the guide but we haven't seen any testing to confirm this, and according to Ferrea, the black nitride coating actually has a higher RA measurement so the opposite would be true. Ferrea uses a hard chrome finish on their valves and has some of the most rigorous testing in the industry. In some of their tensile testing, the coatings can become brittle and crack. And since it is bonded to the structure of the valve, it will lend to the valve itself sheering or tearing apart. This is not to say it's a case that any of you will ever have to deal with, it is more to say that Ferrea takes their quality control and finishing processes very seriously, and if a Black Nitride coating were superior, they would be using it.
Also, a Black Nitride coating has little to nothing to do with being a "thermal barrier" as opposed to something like a Ceramic Coating.
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Word, well said. I already PM'd you so thank you for the info.
08-01-2011, 09:08 PM
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