D-series engine calculator

D15, D16, D17 and Mini-Me swaps
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By 1993 Civic Si
- Tue Jul 10, 2007 3:41 am #13748 Dead link? :?
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By york62
- Tue Jul 10, 2007 3:13 pm #13772 thats pretty cool.
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By -EJ1- COUPE
- Tue Jul 10, 2007 3:29 pm #13778 thats pretty sick nice find
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By suspendedHatch
- Mon Jul 16, 2007 4:35 pm #14445 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.
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By teal_dx
- Mon Jul 16, 2007 4:53 pm #14446 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.
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By 1993 Civic Si
- Tue Jul 17, 2007 4:13 am #14515 That's pretty kewl! Great additional info on the site, too!!! :woot:
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By teal_dx
- Tue Jul 17, 2007 1:45 pm #14562 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.
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By weaponr82
- Mon Sep 10, 2007 9:31 pm #22853 Good work on the calculator
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By KRYSTED9354
- Tue Feb 19, 2008 6:07 pm #42953 WoW im going to be making 10.30
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