Civic EG

Posted: **Mon Mar 05, 2007 2:53 pm**

http://www.zealautowerks.com/dseries.html

put in your build parts & let it figure out your specs!

Posted: **Tue Jul 10, 2007 3:41 am**

Dead link?

Posted: **Tue Jul 10, 2007 12:53 pm**

http://www.knology.net/~jediklc/dcalc.htm

There's another one

Posted: **Tue Jul 10, 2007 3:13 pm**

thats pretty cool.

Posted: **Tue Jul 10, 2007 3:29 pm**

thats pretty sick nice find

Posted: **Mon Jul 16, 2007 4:35 pm**

So if I put my Y5 head on my Z6 (SOHC VTEC ZC to be more precise) block, I get 10.9 compression ratio?! That can't be right.

Posted: **Mon Jul 16, 2007 4:53 pm**

Sounds correct to me, the Y heads have smaller combustion chambers than the Z6 and D15b* heads do. So when you slap a Y head on a D16z6 or D15 block, it bumps up compression.
I ran a D16y8 head on a D15b7 block and it was a good mini-me setup, but I had to use higher octane gas because of the higher compression ratio.

Posted: **Tue Jul 17, 2007 4:13 am**

That's pretty kewl! Great additional info on the site, too!!! :woot:

Posted: **Tue Jul 17, 2007 1:45 pm**

Actually, I just noticed you said Y5 head. If you're considering that head, I'd look for a Y8 instead. The y5 head is vtec-e from the 96-00 civic HX and is different than the z6/y8 vtec heads. The y5 hx motor uses a "lean burn" mode when cruising to get good gas mileage. In lean burn mode, the 4 valve head switches to 3 valve operation with one intake and 2 exhaust valves per cyl.

The y5 also uses a specific ecu, the obd2 P2N, to do all that stuff.

Posted: **Mon Sep 10, 2007 9:31 pm**

Good work on the calculator

Posted: **Tue Sep 11, 2007 12:56 am**

i used the calc when i was building my D series..

according to it i ahvea 8.3:1 compression ratio...lol

Posted: **Tue Feb 19, 2008 6:07 pm**

WoW im going to be making 10.30

Posted: **Tue Feb 19, 2008 8:38 pm**

it says i have 8.3:1 ahhaha

Posted: **Tue Feb 19, 2008 8:40 pm**

it says i have 8.3:1 ahhah

Civic EG

D-series engine calculator

D-series engine calculator