The making of the HeadGames ported Porsche head...
HeadGames has been doing 996/997 heads for some time now, doing them for various shops. Now, they are available to everyone! Follow this thread and see the process and learn how a head is built! This particular set will be sent off to our friends in Russia at Dragtimes.







Flow testing is a integral part of cylinder head development, because of time constraints. We do not flow every head that leaves the shop, but extensive testing is done to get the valve job and port shape right where we want it before moving forward. Here HeadGames shop manager Tiffani is flowing the stock intake port of a 996 head we recently did on this forum. The 996 and 997 share the same cylinder head design.




Hope everyone enjoys this thread and follows along! Feel free to ask questions along the journey or ask to see a certain aspect of cylinder head machining you have always wanted to know!

 

can you post flow charts compared to oem

 

Staying away from the flow chart in our threads. We looked and found nothing that resembles consistency in stock numbers or ported compared to ours. Everyone had a different outcome with the base number. Which brings me to
my opinion that I have gained over years of posting on forums is a flow sheet is good for the person doing the work. Because that is the person that has to decipher the info to make sure his/her work is the baddest out there. 99% will look at the sheet as a bunch of numbers, look for the biggest one, and decide if they want to heckle, or rejoice... But even then, that same 99% does not know what that number should or could be. It could even flow to much for a given application! But, you have to be educated in that realm to understand that conundrum.

Unlike a dyno graph that is pretty prevalent and more people know how to decipher it. I think the flow chart is pretty much a mystery to talk about in a general forum. If we start racing flow benches I think this material would have some relevance to everyone, but not now. A dyno or race track is where it shines and brings it to the table of understanding. We have many world records in almost every genre of car. This particular set of heads is going on a very well recognized race car that already has a set of ported heads on it and has had some record setting standing mile runs. When the time comes those results will be posted.

 

There is no such thing as too much cylinder head in terms of airflow, only too much port cross sectional area or not enough motor under the head.

Every other make of performance cars including extreme duty drag motors publicize flow numbers....I cant understand why high end cars all seem to hide the data.....

 

I think that the domestic end is the reason it is so hard to talk flow numbers. People concentrate their efforts on a lift (.500) and most if not all the small engine cars use a cam so large. So, you have people making larger cross sections and big valves trying to get the most out of it at those lifts.

Trying to find just stock numbers was hard. Some I wonder if they used a spark plug. lol

 

Haven't made a update in awhile. Roughing in the intake port

 

intake port ready for some HeadGames Motorworks valve guides.

 

Work of beauty! Any chance on releasing the flow data?

Finally I cannot believe the 997 cams are cast so rough though.

 

Post #3

 

Exhaust port all ready for the HeadGames Motorworks bronze guides and custom Ferrea Racing Components valves!

 

We have been super busy getting ready for TX2K and we are moving into a larger facility!

But, wanted to update the heads are done. This picture is the heads coming off our milling machine. Full update with a back-round of what was done coming soon!

 

Are these stock heads that you guys port? How much is the porting work?


Do you guys hand blend them or just the CNC work?

 

They are factory castings that we port by hand at this time. We are actually moving into a larger facility to accommodate a CNC. So, for now...human CNC

 

Pricing can be found on our website or contact via email, pm. Pricing per forum rules cannot be directly discussed. Sorry!

 

Intake port ready for assembly. That's our own bronze guides peaking through. More on that later...