Im looking into bumping up my comp soon and i wanna know the piston to dome height so i can use that spiffy c-speed comp calc... Here's what i've got so far

Combustion chamber = 38cc
Bore = 75 mm
Stroke = 90 mm
OEM 3 layer Gasket = 0.0290 (im actually going to be using the y8 gasket so any corrections will be gratefully appreciated)

So now i just need the piston to deck height, and i can't afford and don't have the tools to pull of my head and figure it out as this time. Thanks

 

D16A6 Piston-to-Deck Clearance = 0.020 in
Stock D16A6 Head Gasket = 0.048 in
Stock D16Y8 Head Gasket = 0.037 in

 

12.116864326611375:1 c/r with pct pistons in case of any confusion...anyone know if a usdm honda dealer would sell the ctr piston sets?

 

PCT piston. in a D block is that what you are trying to do?

 

im looking at various combos and making a judgement call from there, so not necessarily pct pistons but possibly...I found on d-series.org someone said the combustion chamber of the d-series is something like 32.8 cc not 38...if thats the case the compression is around 14.00:1 thats wicked sweet

 

http://www.flashcow.com/dseries/compression.html

A work in progress. All the default values are for a stock D16A6. 1 inch = 25.4 mm.

32.8 cc's corresponds only to the Y5 and Y8 heads in the US. Z6 head volume is 34.6 cc's

Chas
Honda D Series
http://dseries.org

 

Also, the A6's Head Chamber Volume is 38 cc's.

chasrex is correct on the Z6 and Y5,Y8 heads.

EDIT: Shoot..you already mentioned it in your first post! Oups!


[Modified by YBLegal, 10:27 AM 1/10/2003]

 

Since you want to raise your comp in your A6, I'd suggest A1 pistons and maybe a 92-95 si head gasket.

CR with A6 gasket and A1 pistons = 11.35 CR and 1590.61 Displacement

CR with Z6 or Y8 gasket and A1 pistons = 11.67 CR and 1590.61 Displacement

I'll be doing this setup in the near future along with cams. I'm saving up for it now! Hope this helps!

 

Holy Jeez that's crazy-*** CR numbers!

What about stock D16A6 pistons with the D16Y8 head gasket?

 

my question as well