sohctodohc

Ok I'm using my brother account here to figure this out. I just picked up a 93 Hatch with LOW miles and a D15Z E-Tech engine. Anyway the intelligent guy that owned it prior miss shifted into first instead of third and dropped every exhaust valve. Anyway I have a D15b7 that has 400k miles on it *all of them unfortunate* but the head is good. Also have a few other D series heads I can get my hands on. Anyway what all heads will fit this engine and with what other modifications? Basically looking for a drop on head.


Jerod

sohctodohc

ttt

CivicVX94

the engine is a D15z1 vtec-e. I know for a fact a y8 or z6 head will not work on this block b/c it'll yield crazy low compression, so i'd start by figuring out the size of the combustion chambers of the b7 head vs a z6 head. If the chambers of the a6 are smaller than a z6 head it'll have higher compression and may work, if they're larger it'll have even lower compression..try to find a d series compression calculator to help you out. you have a horrible engine as far as stuff like this is concerned, good luck

CivicVX94

just read that a6's have a 38cc combustion chamber and the z6 has a 34.6cc chamber, so the a6 will give you even lower compression

also, just an fyi, the reason why z1's are so hard to swap heads on is b/c they have crazy dish pistons and tiny combustion chambers, so anything with larger combustion chambers drops your c/r to ****.....

Bense

it's the same block as the jdm d15b.

CivicVX94

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bense &raquo;</TD></TR><TR><TD CLASS="quote">it's the same block as the jdm d15b.</TD></TR></TABLE>
different pistons/same rods

sohctodohc

welp i got the car for free and the head is shot so im trying to do this cheaply as possible for a dd. i dont care if it has problems keeping up with a garbage truck. basically i need terrific gas mileage with just enough power to move itself

CivicVX94

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sohctodohc &raquo;</TD></TR><TR><TD CLASS="quote">welp i got the car for free and the head is shot so im trying to do this cheaply as possible for a dd. i dont care if it has problems keeping up with a garbage truck. basically i need terrific gas mileage with just enough power to move itself </TD></TR></TABLE>
I doubt that a 1.5L d series with ~8:1 compression and a vx transmission could keep up with a tricycle lol
i highly suggest rebuilding that head...

sohctodohc

lol that would be a hell of a race. i wonder who would win.....welp i better not bench race. i will look into it

CivicVX94

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sohctodohc &raquo;</TD></TR><TR><TD CLASS="quote">lol that would be a hell of a race. i wonder who would win.....welp i better not bench race. i will look into it</TD></TR></TABLE>
haha that's funny...
seriously tho, you may really want to look into what the c/r would be with a different head on, b/c from what I remember in my D series days is that it's insanely low

Bense

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicVX94 &raquo;</TD></TR><TR><TD CLASS="quote">
different pistons/same rods</TD></TR></TABLE>

Block, not shortblock.