Jaysun

So I'm thinking now of going with a Y8 setup, financially suitable and the power is there to be tapped, esp. with help from homemadeturbo.com. Question though:

In one of the archives I came across this

"It's that darned Y8 head. I guess in order to achieve ULEV status, they "cocked" a port over one of the intake valves to induce extra swirl in the combustion chamber (for a cleaner burn). People have gained a significant amount just by fixing that one port."

What the hell is he talking about?

Any comments on my swap decision welcome as i am not final on it and would like some feedback!

Thx in advance

Jaysun

No one?

Jaysun

C'mon....?

Smith Wise

Turbo'D D-Series are nice.......

make sure you've got it tuned correctly with your homemade turbo

turbo is not for everyone, be prepared to "maintain" your engine

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by QuikJaysun &raquo;</TD></TR><TR><TD CLASS="quote">
In one of the archives I came across this

"It's that darned Y8 head. I guess in order to achieve ULEV status, they "cocked" a port over one of the intake valves to induce extra swirl in the combustion chamber (for a cleaner burn). People have gained a significant amount just by fixing that one port."

What the hell is he talking about?</TD></TR></TABLE>

And I don't know what the hell he is talking about

civic-4-ges

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by QuikJaysun &raquo;</TD></TR><TR><TD CLASS="quote">

"It's that darned Y8 head. I guess in order to achieve ULEV status, they "cocked" a port over one of the intake valves to induce extra swirl in the combustion chamber (for a cleaner burn). People have gained a significant amount just by fixing that one port."

</TD></TR></TABLE>

I have never heard of this, and I have come across a lot of information on D-series engines. If it is a major concern, swap it out for a D16Z6 head!

paradise57

It's all about the head design, apparently.... y8 has squared off quench pads, z6 has round quench pads, and the intake ports are designed differently. You can see the difference here:

http://pub143.ezboard.com/fhon...topic

Clearly you haven't searched THAT much--I posted a topic about this two days ago because I was looking for the above link.

Anyway, good luck to you--I too am a sohc believer.

Jaysun

I went through the ht archives...

Thanks everyone for your help

Filliam H. Muffman

yeah, its pretty much just some extra holes on the IM

SOHC_MShue

is this port thing true? How much could be gained from it and how do you do it?