Hi guys need some feedback. We are working on some different port designs and wanted to know how you guys felt about a fully cnc ported , flow benched and dyno proven head. We were thinking about doing 2 different heads, one for the N/A guys and one for the turbo guys.. Let me know what you think, im open to all comments!

www.cimotorsports.net

-MIKE-

Stroked 2.2L

You should see what the numbers are for a stock head as well. Then show the improvements.

-Roman

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

What's it cost to CNC a head? $400? I second the motion for flow number comparison.

Representing the Central Cali chapter of 2GNT!
(I think I'm the only member )

I'm with Dino on this one I need to see some flow number comparisons. Stock, v, Hand ported, v, CNC ported. Then price comparisons for all 3, with and without a core.

I paid $932 to have my head Surfaced, Milled .010",pressure tested, replace valves, seals, springs, retainers, locks, check spring seats, 3 angle VJ, full hand P&P, and some chamber work.

-Kevin

________________________________________
95 Eclipse RS - Rolled
96 Eclipse GS - Traded
95 Eclipse GSX- Sold
01 Blazer LS 4.3/5spd dropped and clean DD
88 Camaro RS 361 CID with a 6spd and a bar 10 second street car on motor.

We will be posting the flow numbers once we can get a good port configuration, we are aiming for at least 60cfm over stock but not sure how close we can get to that number just yet, the cnc process costs about as much as hand porting. Well try and get some dyno number up also going from stock head to ported head with stock components installed, well also be testing crower staged cams with and without oversized valves and get flow numbers for those setups as well... keep the input coming guys!

www.cimotorsports.net

_ _ _ _ _ _ _ _ _

96 Black ESi
91 Red TSI AWD (RIP)
02 WRX


"turnin wrenches for nine hours in the pouring rain, just to get the beast up and running again"

Aerospace Certified TIG welder for Precision Castparts in Portland, OR.

JoshSpair.com

Representing the Central Cali chapter of 2GNT!
(I think I'm the only member )

damn what dont you know turbo8u, you da man.

We will build you bigger and stronger


Wake up and drive my ass... More like wake up and fix it.

If the opposite of Pro is Con
then the opposite of Progress is Congress

_ _ _ _ _ _ _ _ _

96 Black ESi
91 Red TSI AWD (RIP)
02 WRX


"turnin wrenches for nine hours in the pouring rain, just to get the beast up and running again"

Aerospace Certified TIG welder for Precision Castparts in Portland, OR.

JoshSpair.com

Sorry about that! What i meant to say was once we can get a good port configuration we will test it with both stock size and oversized valves, than after thats all said and done we are going to dyno the heads with different cams installed to see what power we can gain from them..

www.cimotorsports.net

hell yea then, thats the best thing you can do. rock on.

I have the stock flowbench numbers, and a ported head too. see if you can get some better flow than my nigga Chris (2point4) with his mad porting skills! Ill send you them if you want. He understands flow like its a 3rd nut though, so I dunno lol.

and a HUGE percentage of the gains will come from your valve job, DO NOT forget that. look for good low lift flow.

_ _ _ _ _ _ _ _ _

96 Black ESi
91 Red TSI AWD (RIP)
02 WRX


"turnin wrenches for nine hours in the pouring rain, just to get the beast up and running again"

Aerospace Certified TIG welder for Precision Castparts in Portland, OR.

JoshSpair.com

I'll tell you what, if you can market your head with detailed before and after numbers and consistently provide those numbers, the only thing you really have to worry about is getting the product out to your customers 100% ready to install and promptly. It seems as if every vendor we get in this community slips into this mindest of "Pffft. Those guys can wait." That's bullshit.

I don't say this to head this discussion in another direction, but we have too many vendors who offer quality products and services around here who simply fail to deliver on the customer service side. Simply put, if you can provide a quality product at a fair price, and you can deliver that product promptly, you will clean up around here.

That is all.

________________________________________
95 Eclipse RS - Rolled
96 Eclipse GS - Traded
95 Eclipse GSX- Sold
01 Blazer LS 4.3/5spd dropped and clean DD
88 Camaro RS 361 CID with a 6spd and a bar 10 second street car on motor.

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

i was planning to move into this same venture last year when i was still working in the machinist trade. the question u have to ask yourself is... will it actually be worth it to do so? its a great idea for the performance aspect. yes, a cnc'd head should perform well as long as the "original" design isn't flawed. then, u are still dependant on the quality level of the machinist u employ to do the work for you. this will be a costly excercise when u consider labor cost, machine time, and tooling. then the only question left is, how many people will actually cough up the dough to purchase this unit. my conclusion... not many. honestly, i think it would be much more cost effective to extrude hone them and you'd get just as productive results... my 2 cents

turby - thanks for the good words my brotha! bring ur ass back to norcal so we can get the 2.5's started... jeah