Cruzad3r

of a gain will this job yeild? obviously the pic you posted has info on both the evo shield and EH mani so i would assume only with evo shield yield result in the middle of the two data line. is that a correct/reasonable assumption?

TTschwing

Is timing which is largely a result of the heat reduction from the Evo-shield. Same with the Temp differential charts in my Fotki album. Neither represent flow. Data from our Extrude honed group buy some years ago showed a potential flow improvement of 12-14% so it's a good thing to do as you get toward the end of eeking out the potential of the stock set-up. Not necessary, but nice if you want to maximize efficiencies.

Actually all that data was approx. 2 years before I did the extrude hone..

<img src="http://images103.fotki.com/v420/photos/7/7305/776545/DSC02215-vi.jpg">

ModifiedA4

what i was trying to say is that added turbulence is not bad as long as it doesnt impact flow.

Cruzad3r

i would assume that it's much easier to head match the gasket if you take the mani off. how much of a labor/works will that involve?

as for EH, i was thinking about it for a long time but i'm not sure the cost of the process worth the result. i think reducing the intake temp is much more worthy than the EH (cost effectively-wise)

GorTT

<center><img src="http://pictureposter.audiworld.com/53277/audir8_intake.jpg"></center><p>Tapered, dual plenum is good for these guys too!

And the DB is a very good design btw (bought directly from Lehmann/Skoda, and just tagged DB), even if it doesn't live up to the wild HP claims that were made by it's early advocates ;-)

TTschwing

Of course you do! It's not that hard though..

TTschwing

Actually I've never seen a small port one. Do they exist?

<img src="http://images24.fotki.com/v873/photos/7/7305/1149945/DSC02562-vi.jpg">

Cruzad3r

you used 1 diamond bit and 2 sanding drum. it always sound harder when you havent done it before and easy when you did it already so for me, i do not want to screw this up when i take material out of the mani. can all this be done within a day, granted no frikin screws/studs got broken or stripped. that's the only thing that i'm afraid of, it's a frikin pain to go through these things and i know one of the member here had to tow his car to the dealer to get that fix. YIKES!

GorTT

<center><img src="http://pictureposter.audiworld.com/53277/04_13_07_083.jpg"></center><p>best I can tell from this shot, it looks like a small port.

I'm of course not home now, but I'll check later and post now that you've posted that pic; when I got it I admittedly just glanced at the ports and they looked like they matched the AWP/small port head (I have a spare AWP laying around that I bought to port), and since I had(have) the AEB/big port APR mani at the same time, it struck me right (that the DB was small port); maybe I'm wrong.

Basttion

Hmmm, tell me more. ;oP