Welcome to the SR20 Community Forum - The Dash.
Register
SR20 forum logo

Thread: Help with compression numbers

+ Reply To Thread
Posts: 1-10 of 61
2012-04-24 00:29:04
#1
Help with compression numbers
On my fresh rebuilt w10 motor with ve hg and s4 cams I'm getting 120-120-95-95. Is this too low and also do I need to retorque the Mazworx head studs? Thanks for any help you guys are great.
2012-04-24 00:30:15
#2
Interesting...has the car been ran yet?

Look at this:

http://www.sr20-forum.com/turbo/57028-compression-test-woes.html
2012-04-24 00:30:58
#3
mazworx studs should be tightned to spec.

something is wrong. did you do pistons also ?

stratton.
2012-04-24 00:33:17
#4
Stock pistons new rings car has 400 miles.also am using a friends hf cheapie gauge.
2012-04-24 00:43:12
#5
well, im gonna say rings havent seated yet. somethings prolly wrong. you have a finight time to seat them...

stratton.
2012-04-24 00:57:20
#6
Found the fsm procedure new numbers 150-150-115-115. Is something wrong? Car runs fantastic. No oil consumption and not overheating and not burning coolant. Any thoughts?
2012-04-24 00:59:35
#7
yeah something is wrong, your way down on two pistons. im gonna say they werent gapped correctly.

stratton.
2012-04-24 00:59:53
#8
Has the head come off at all? If so, what head gasket?
(Compression down on two adjacent cylinders usually means the gasket is not sealing between the two.)
2012-04-24 01:04:31
#9
°^^^ truth and also possible warped head, did you deck the block and head
2012-04-24 01:05:16
#10
No just built 400 miles ago used the ve head gasket and Mazworx studs. Do you think a retorque would hurt? Head got a valve job exhaust guides and a resurface. The block just got cleaned/honed. I torqued the studs per info card. I haven't heard of the Mazworx studs needing re torque but iirc some brands do.
+ Reply To Thread
  • [Type to search users.]
  • Quick Reply
    Thread Information
    There are currently ? users browsing this thread. (? members & ? guests)
    StubUserName

    Back to top