If I were to order the B18 9:1 compression and put it in my B16 will it come out to 9.3:1 compression? Its still stock 81 MM also.

 

Just don't use stock LS slugs in it... valve reliefs are different.

 

Theyll be A LOT lower than 9:1 in a b16a.
Should be close to 7.5:1 in a b16a

 

Notice the valve crescents on the second pic in the valve relief area. Nice shiny aluminum.

We did the calcs, mine was at 8.3:1 with the ls slugs was the numbers we figured.

Here's what we did to one... weak *** mo fo's





[Modified by SiR Kid, 6:23 PM 11/29/2001]

 

Are you shure about it being around 7:1 compresion when I stick it in a B16A2. I just got done talking to one of the pistons distributor and he said it should come out to around 9:3 or 9:5.