Coyote Gen 1 CNC update...

Dave updates what went wrong with his road to CNC for the Gen 1 coyote and the head he choose for his personal ride and why he needs a back up plan!

[LUCKYDRAGSTA]

What you should do when testing a new type of head even though it is the same casting is put the porting tool in and put the tool in the start or finish of the opening and spin the tool by hand and jog the tool until it starts to rub and look at the screen to see if it is close to the planes on the port. Jog it to all 4 points of the port. The top the bottom and the sides.

[Spad]

Definitely want to see the progress and the eventual 8 second pass

[GroovesAndLands]

So, recently the head gaskets on my SOHC Subie started to leak (as they do). I did some mild port work before sending the heads off for a resurface and nice fresh valve job. Headgames were about $200 more than one of your competitors - so I chose the competitor. That was a mistake.

They did a beautiful job resurfacing the deck; and the valvejob looks good (and seals). They did a good job tipping the valvestems. When I assembled my cams and set lash - all 16 were consistently about 0.020" loose, suggesting they actually translated the material lost to grinding valves & cutting seats into the material removed off the valvestems.

However, the $100 I paid them to clean the heads was a total waste. There was still black Boelube funk in the ports as well as other grime from 180k miles on the heads. They came back assembled - but I had to re-disassemble them to **actually** clean them - and then re-re-assemble again.

The heads came back wrapped in a couple layers of saran-wrap. Luckily they re-used my very nice boxing with custom liquid-foam inserts.

The communication was almost non-existent. I know automotive machine shops are usually not very responsive; and usually overpromise/underdeliver in terms of delivery dates - but it took 8 weeks (after promised delivery date) to finally get them to answer emails/calls and get the heads shipped out.

Last, when I DID finally get a hold of them and was time to pay - they wanted 2X more than the published prices on the "services" page of their website. I had to argue/negotiate to get them to come close to matching their published prices. In the end, my choice "saved" me maybe $50.

Luckily, the subie is back up and running - even feels like it's got a little more oomph above ~4000rpm... But I won't make this same mistake again.

Keep up the good work.

[georgedreisch]

Thinkin’ this reveals a part of things people don’t consider. The requirement to reverse engineer, things like datums and locations, that aren’t found in manuals and other references, to build in accuracy / compatibility, before starting to make chips, if y’all expect to do it more then once.

[simonsays]

Would like to see more intake manifold porting, luv u bye bye

[MrBlackbutang]

Never give up! One has to get wet sometimes to cross the river 👍🇺🇸🏁🏆 muttastang

[jmoemorris]

It doesn't sound like you to just assume!
Being with Don Schumacher racing they do a lot of assuming here to but I just look at them a little crazy.

[ahmed]

Congrats on the CNC! Will it work better than hand porting when it comes to pocket porting 2jz heads ?

[ericsmcmahan]

David Localio, have u ever considered staggering ur intake and exhaust valve sizing to make swirl? Would it be worth it?

[lucascb]

You haven't tried porting at 10/10ths until mistakes happen.

[fivesfe]

Hey are you looking to do a CNC on a n54 head one of these days?

[michaellaucks]

Got a link or something for p1 hardware?

[marineyacht]

If head games will be a collage i think I graduate this year with the top of the degrees 💪🏾💪🏾💪🏾💪🏾💪🏾 there’s any where i can send you some pics. And videos 😂😂😂😂🤔❓

[CJEVOLUTION]

If you are not learning thru falls that means you are not progressing