so what do you guys think about my compression test on my civic dx, 148 on all 4 cylinders, is this good

 

What pistons do you have? Its good that their consistant, butt it seems low for a stock motor. comp #'s sould be 17-20 times your static c/r.

 

well i dont really know what you mean but uhh, all i know is that my compression is about 148 lbs psi. so its pretty low for a compression test huh?

 

I think its low, what motor do you have, and is it stock? What i mean with all the static c/r and stuff is: I have a z6, i think the stock c/r is 9:1.1 and if i did a comp test my #'s should be 17-20 times that. So they should be between 153-180. To me around 170-180 is good (for my motor). Do you burn oil? How many miles are on it, that tells a lot too.

 

Knowing the engine is important. If I had compression results like that on a B series VTEC I'd be horrified, whereas it might be acceptable for a different motor within a certain mileage range.

 

it is a d15b7 engine and everything on it is stock...

 

its fine for that engine. if its the stock engine for a 93 civic, chances are that it has a lot of miles and probably burns some oil. for them to be low like that, but all pretty much the same, then you have a healthy engine considering its age.

also depends on what compression tester you use. different testers give different results. Did you go to autozone and get the cheapest one?

 

 

i am not quite sure on what kind of compression tester but uh there is only lbs psi and kpa x 100 and i have no idea what kpa is

 

am i suppose to open my throttle up for a compression test though?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aziaticvang &raquo;</TD></TR><TR><TD CLASS="quote">am i suppose to open my throttle up for a compression test though?</TD></TR></TABLE>
Yes, and the engine should be warm.

kPa = kilopascals (metric unit of pressure)