Comp Test?

[Peter89]

yes, i have searched and read around the internet and forum however, the problem is i get different opinions. also, i do realize this is a skyline forum, however i need some responses quickly and NS hasn't produced anything.

im looking into buying this 1997 ADM S14a that has 160,000kms on the clock.

comp test, warm engine and WOT gave:

1: 125

2: 125

3: 130

4: 130

done 2 test drives and the car seems to run well, pulls fine and no sounds in the upper rev range. however, the comp test results hasn't given my huge confidence. for $9k, should i expect such results?

[niran]

Hey man

Don’t quote me on this as i don’t own a car with a SR engine however my cousin does own a 180sx with a black top in it... if i remember correctly I recall him saying the compression rate on the sr20 (when a fresh engine) is around the 150 in each cylinder and that he’s was around the 140 mark across the cylinders. So what you’re getting is expected if it’s an untouched engine from factory.

Again don’t quote me as I’m not someone who would know the exact compression rates on a sr20.

Edited December 2, 2009 by niran

[beamstas]

Seems a bit low