I want comparison numbers before I put that Cosworth head on a special someone's car! It is after all being shipped back to me!

Good work Dave!

 

Just to clear up any confusion, Headway and Headgames are different companies

Headgames (in this thread and used to do AMS heads):

http://www.headgamesmotorworks.net/


Headway (what drifto and TedB used):

http://headwayperformance.com

 

+1 Mr Dave Licalio is one bad ***** when it comes to head porting!

I have never seen a poor review of Daves work and no matter which platform or circles, his name is mention with glowing reviews...

 

aaaaaaaaaand now I feel like a heel.

 

Whoflung if you want any head work done send it to Head Games... Trust me

BTW is that unit of yours about done so we can get it tuned out nicely once again!? Should be a monster this time around with you being able to pick out everything and make it right from the beginning!

PS. Give me a call and update me on the progress.

 

Yes we want more updates Dave.lol.

 

The short answer is yes, flame propagation is a consideration..but with there is far less room in most sport compact heads to impact it from a head porting point of view. We can move material around in the chamber, but not that much.

If you are referring to your Nissan brothers..as I see your screen name, it is a pretty common practice to take the squish area out of their heads to avoid detention. To be honest, we have not liked doing it, but it has certainly worked!
We did one for the Castrol Engine Challenge and runner up against the mighty 4G63

this is what we are talking about on a SR20 head..looking at the back side of the chambers, behind the valves...


unfortunately this is the best I could find of taking the material out, if you look at the last few chambers you can see what we are talking about



Again, not a fan of it..but it's hard to argue with results. The bottom pic, that head went on the fastest 240 in the country, and won a NHRA and NOPI championship.


working on that..but that is a separate thread

Thanks dude!

Thanks Philty..it is true. We do not work on one kind of head, and every brand we have worked we have been able to set records, and win championships and apply that knowledge to our street customer. We just sent a head next day air to Puerto Rico that will be going on Georgie Performance's Subi looking to set the new world record and get that thing in the 8's!

 

+1 for Dave. He took my ****ty head and made it wonderfull. and all for a pretty good price too!! Can't wait to get it tonight!

 

interesting

 

Well i was just told by one of my boys at AMS that they were on there CNC head when they made 1142whp and went 8.42. I had thought different... So just wanted to clear that up.

Still doesn't take anything away from head games though there proven time and time again and treated me right!

 

Is there any reason why some porters try and build velocity on the intake side? I would think that on a turbo charged motor, this wouldn't be necessary. I can understand doing this on the exhaust side, but on the intake side?

 

Why would velocity not matter on a turbocharged engine?

High velocity is beneficial to help continue filling the cylinder even while the piston starts moving UP the bore. Inertia...

 

How could you build more velocity than what the turbo is already producing? I used to port N/A set ups, not too much of the turbo stuff.

 

you would port them the same...the only combo I have found that reacts different is BIG nitrous shots like BIG exhaust ports. When I say big, 800hp+ in nitrous, the bigger I make the exhaust port the more power it makes. Everything else stays the same. We used to treat the turbo stuff like the nitrous heads..but we started to make them smaller and went smaller on the valves, picked up power and tons of torque. You do see some heads, even on here that make the intake way bigger then it should be, and only think the same logic of bigger port because the turbo supplies the velocity is applied. Air may be blind, but it's not stupid. It likes tight spaces and nice or slight turns..nothing abrupt or spacious

 

The turbo is producing an increase in air density, not velocity. Turbo engines depend upon mechanical efficiency for VE, just as do NA engines.