10.2

 

My GSR new would have compression of about 270psi at 10:1 compression ratio, so I would imagine the 10.2:1 ratio would peak at around 290psi. The minimum you would want to see is around 200psi. Also, you don't want to see a 30psi variation in any of the cylinders.

 

actually the minimum factory allowance is 180psi with no more than 20psi deviation between cylinders, and no lower than 180 if there is a deviation.....at least according to ALLdata

 

OK. I was just making an educated guess considering I only have the specs for my GSR sitting in front of me. I was relatively close though.

 

wasnt tryin to put you down mang..sorry if I came off prickish...I just happened to be on alldata when I read this.