Anyone know the Combustion Chamber Volume

[rakkasan]

for an uncut 1JZ head?

 

[soapra]

Have your Machinist CC the head. That's what part of blue printing is all about. Are you trying to find out your compression?

 

[rakkasan]

Have your Machinist CC the head. That's what part of blue printing is all about. Are you trying to find out your compression?

I'd like to know so I don't have to pull the head in order to get a head gasket in the mail. Yes, it's for compression

 

[rakkasan]

I'd like to know so I don't have to pull the head in order to get a head gasket in the mail. Yes, it's for compression

any one?

 

[suprahero]

Did you look on www.clubna-t.com Mark?

 

[rakkasan]

Did you look on www.clubna-t.com Mark?

Yes, but all I found was contradicting information. I'm fairly certain that it's 55.37cc, but I want concrete info.....

 

[rakkasan]

Yes, but all I found was contradicting information. I'm fairly certain that it's 55.37cc, but I want concrete info.....

LOL at your sig, glad I'm a white Supra driving American :sarcasm:

 

[suprahero]

This is what I came up with when I measured mine Mark. It's totally different than what you've found but I would trust your research. Me and the machinist came up with these by squirting vegetable oil into my head with a syringe.

Bore....................87mm
Stroke.................86mm
Gasket diameter....88mm
Head volume.........40cc
Dish volume.......-15.5cc
Deck heigth........-.17779mm
Compressed gasket....2mm (0.0784")

All this equates to:
Compression ratio........8.68:1
Displacement..........66.60

I had to go through about 85 pages to find this, but I knew it was in there somewhere.

 

[rakkasan]

Thanks Jay, I'm confident that 40cc's is correct. Here's what I came up with

Bore....................86mm
Stroke.................86mm
Gasket diameter....87mm
Head volume.........40cc
Dish volume.......-9cc (Stock GE pistons, needs to be confirmed)
Deck heigth........-.4046mm (.016", Stock GE measurement, needs to be confirmed)
Compressed gasket....1.8796mm (0.074"/Cometic C4276-074)

All this equates to:
Compression ratio........8.9885:1
Displacement..........62.53

 

[rakkasan]

Hmmmm, a .071" HG will give me 9.1:1 C/R. That would help the spool :sarcasm: