im wondering if my compression results are good for a 93 ls with 150k miles on it
1: 210
2:195
3:205
4:210

are they suitable for boost or cams?


Modified by projectTeG at 11:20 PM 4/27/2004

 

wtf, thats like better than factory. Isnt LS's 180 or something and GSR closer to 200. My 96 ls has like 170 across the board.

Correct the noob if hes wrong.

 

???newbs is me or you?

 

180 i believe is the norm for LS's

 

y are mine so high then? the only thing ive done internally to the motor is replace the valve seals

 

diff head gasket? cranked over too many times?? ..who knows

 

i cranked it for 5 rotations....could it be that my engines in good shape?

 

The actual numbers don't matter. It is the variance between the numbers that is important. You want to remain within a certain range with the variances.

This is bad: 200-200-200-100.

This is good: 160-160-160-160.

 

my GS with 140k miles is the same way. 210-210-215-215

pretty sure it's just carbon deposits built up, not a bad thing. probably give yu a tiny bit higher compression ratio