zc d15 turbo
#53
Re:zc d15 turbo
Originally Posted by AbaZ
With stock pistons the thing would be slow as ----. 7.8 c/r NA.. now that would rock The ZC has a huge quench pad, hence why stock ZC/A1 pistons are domed.
#55
Re:zc d15 turbo
Originally Posted by AbaZ
With stock pistons the thing would be slow as ----. 7.8 c/r NA.. now that would rock The ZC has a huge quench pad, hence why stock ZC/A1 pistons are domed.
#56
Re:zc d15 turbo
lol, 9.1:1? Yeah......
The DOHC pistons are domed with a larger chamber in the head. The SOHC pistons are flat with a smaller chamber in the head. Putting the flat pistons in the domed pistons motor would lower the ---- out of the compression. You put a DOHC head on a SOHC block which created a very large combustion chamber, lowering the compression.
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The DOHC pistons are domed with a larger chamber in the head. The SOHC pistons are flat with a smaller chamber in the head. Putting the flat pistons in the domed pistons motor would lower the ---- out of the compression. You put a DOHC head on a SOHC block which created a very large combustion chamber, lowering the compression.
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#57
#59
Re:zc d15 turbo
What did you do differently than me because I got 8.25:1
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#60
Re:zc d15 turbo
for the zc stock c/r i get 10.05 all the way down to 9.89 for the jdm setup and 10.55 to 9.98 for the usdm setup. the only variable that i changed was head gasket size.
this also restates what i said before in my h-t thread:
http://honda-tech.com/zerothread?id=...36969#12836969
this also restates what i said before in my h-t thread:
http://honda-tech.com/zerothread?id=...36969#12836969
trust me it wasn't easy my car ran like ---- for a long time until i figured out all of those tweaks. and i wouldn't recommend doing without a turbo becuase the zc head's combustion chamber is like 10cc's bigger than the d 15's. so your compression goes to like 8.3-1