2jz piston compression height and block deck height

[cresjunkie]

Hi folks. I am finding conflicting information so I may as well ask.

What is the piston compression height for the N/A 2jz pistons?
What is the blocks deck height as well?
Has anyone by chance had a 2jz crank cut for honda rod bearings with success for use with custom rods?


Sorry for the questions and I appreciate any answers.


Chris

 

[Turbo Habanero]

Compression ratio is 10:1 and with vvti its 10:5

Block height should be the same for GTE which is 27cm or 10.629in


As for the third question why?

 

[cresjunkie]

Thank you for the compression ration of the engine, but I am looking for the compression height of the stock piston. That is the distance from the center of the wrist pin to the top of the piston.

A smaller diameter rod bearing will have less drag and less friction, but the crank will have to be cut for it. A smaller compression height of the piston will allow a considerably longer rod with the smaller rod bearing. I'm basically after a long rod 2jz instead of going after a big cc engine.

 

[hvyman]

A longer rod is not going to chage the displacement.

There are many nice rods for the 2j out that are the capable for 1k + hp.

 

[cresjunkie]

I'm not looking to change the size/cc of the engine. I just want to run a few numbers to see what different rod lengths will do to the rod ratio

 

[IJ.]

Thank you for the compression ration of the engine, but I am looking for the compression height of the stock piston. That is the distance from the center of the wrist pin to the top of the piston.

A smaller diameter rod bearing will have less drag and less friction, but the crank will have to be cut for it. A smaller compression height of the piston will allow a considerably longer rod with the smaller rod bearing. I'm basically after a long rod 2jz instead of going after a big cc engine.

Keep in mind Toyota Induction hardens their Cranks so it's quite shallow, you'll have to Niteride/Heat Treat the crank afterwards and this gets a bit expensive.

 

[Dylan JZ]

A machine shop local to me figured that ^ out the hard way..