9 replies to this topic

[Dylan8660]

Hopefully someone out there can help,

I'm sure that I read somewhere, probably some time ago that there was a tuning company that were doing a cnc head tuning service, big valves, flow etc. So is there such company? and can you give me or direct me to any info/review/article?
Cheers.

[Tupers]

I think KAD offer a service where they balance the size of the chambers in your cylinder head on a CNC mill. I don't know if they can port a head on a mill though.

[dklawson]

I suppose you could do most of the porting and chamber balancing with a CNC. If you use a ball end mill you could generate very controlled profiles for each port. Final blending with the casting would still require a bit of work with abrasive points though. It's an interesting concept. I wonder if Martin at MRA could do it?

[Sprocket]

You need a very expensive 5 axis CNC mill to be able to port cylinder heads with a machine.

There are people out there, but I am not aware of anyone who does A series heads. Thats not to say some one hasn't done it.



The only CNC machined A series head I know of is the Specialist Components 7 port billet head.

[danrock101]

http://www.cncheads....k/products.html

[MRA]

Or we do .....

[Scott MPI]

I had a little go at Cnc machining if your interested

http://www.theminifo...howtopic=185477

Sorry im struggling to do the link

It's on page 14,injection section(Diy cylinder head)

Thanks

[jamiestevenbell]

would a cnc machined head perform any better than the normal way

[dklawson]

In theory a CNC could/would produce combustion chambers of equal volume. Extending that thought, the ports could be made "uniform" from head to head. That would give uniform performance from head to head to head.

[MRA]

Except that the castings are often considerably different

It is as Scott has found out that one head is ok, more heads then become harder to maintain repeatability, unless you stick to a fairly average state of tune.