I did a compression test on my 98 Ls teg with 114,164 miles on it and I am 160 across the board. Is this good. I am told this is low for an Ls. If so could I slap in some ITR pistons with no prob? Or will I have valve problems?

 

If they are all AT 160 exactly, then you have a head gasket leak between cylinders. They should almost never be at the exact same compression.

 

160 psi on a LS isn't great, but still within Acura specs, 185 nominal, 135 minimum, with max variance of 28 psi, at least for my 92 RS B18a those are the specs from the Helms manual.

 

thanks, and it's like 160/162/160/165

 

sounds a little low, i had 180 across the board except for #2 which was like a 174