ok...me and a friend were arguing about what my compression would be...since the b16 pistons ar 10.2:1 and the ITR pistons are 11:1 i said that the ITR pistons would be 11:1 in a lsvtec and he said they'll drop...but i heard that the b16 pistons go up to 10.6:1 ....just wanna know what the compression will be for the b16 pistons in a lsvtec compared to the ITR pistons in a lsvtec...

 

It depends on the B16 pistons that you use, the P30 B16 pistons will yield close to 11:1 compression, but the more common PR3 pistons will be lower than that. 10.6:1 sounds about right.

 

straight from c-speed's website


b18a/b block
stock 81mm bore
b16a/b - b18c5 head
oem 3 layer head gasket
piston-to-deck height stock b16a/b
pr3 (usdm b16a pistons)
compression = 11.639915784025111

b18a/b block
stock 81mm bore
b16a/b - b18c5 head
oem 3 layer head gasket
piston-to-deck height stock b16a/b
p30 (jdm b16a pistons)
compression = 11.871967201498737

b18a/b block
stock 81mm bore
b16a/b - b18c5 head
oem 3 layer head gasket
piston-to-deck height stock b16a/b
p73-a0 (usdm b18c5 pistons)
compression = 11.085380846254102

b18a/b block
stock 81mm bore
b16a/b - b18c5 head
oem 3 layer head gasket
piston-to-deck height stock b16a/b
p73-00 (jdm b18c5 pistons)
compression = 11.627587774263281

hope this helps

Matt

 

Oh, LS/VTEC. I'm dumb right now, just thought it was an LS.