OK, Im rebuilding my engine on my turbo 89 4wd civic wagon. Im going to replace my p06 piston with pistons from a vx engine (p07). I would like to know what compression ratio I will be running and if I will run into any problems?

 

what head? P07 pistons in D16A6 with D16A6 head and stock gasket will have compression ratio of around 6.7:1

 

wow.. really? , is it worth it or no ?

 

that's crazy low

 

so what head would make good compression with the vx piston cause im run a vx block with a zc 1.6 vtec head ?

 

VX block with ZC VTEC head with D16Z6 gasket will give you compression ratio of around 7.8:1 - with Y8 head on VX block, compression ratio would be around 8.0:1 - the problem is that the VX pistons have a 16.1cc dish

 

soooooooo just try to find a vx motor and put some better rods in it and call it a day

 

If you want to run boost on them, why not get some Vitara pistons? They will yield slightly high CR than the z1's and they are a LOT stronger. Cheap too!

http://www.zealautowerks.com/dseries.html

 

so would the vx block with the zc vtec head be good set up for boost