compression test results question?

[RPSil13]

didnt want to start a whole new thread but it didnt let me post on an old thread b/c it was too old, my questions is... will not disconnecting the cam sensor cause you to get wrong/bad readings
i got
1. 165
2. 160
3. 162
4. 165
5. 160
6. 162

are these numbers a bit high, seems like everyone else is getting around 150,

 

[Tajabaho1]

cold or warm test?

 

[supradjza80]

I would be more worried about variation in the readings, yours look really good to me. My motor tested 150 across the board but had it been 160 I would not have been worried.

 

[FloTex]

Results look good. Not disconnecting the CPS should not mess the readings up.

There is a procedure documented in the "Articles" tab on the menu bar.

 

[suprahero]

They look perfect to me. The last time I did mine, I got roughly 165-170. I did it on a warm engine with the throttle opened up 100%.

 

[supraman7mgte]

what is best or accurate? cold engine or warm?

 

[suprahero]

I've always been told to do it on a warm engine. I don't know what's best though.

 

[Bri7man]

Normal operating temp with throttle wide open and a fully charged battery.

I had mine being powered by a idling car for most accurate results.

 

[supradjza80]

I did mine cold, everything is too hot for me to take off when the car is hot. Lots of things to hot to hold onto...for me at least.

 

[lewis15498]

I did mine cold, everything is too hot for me to take off when the car is hot. Lots of things to hot to hold onto...for me at least.

Mechanix gloves FTW

 

[Drake69]

Wow. I hope my numbers look that good when I do mine. Once it STOPS RAINING AROUND HERE!! :: angry ::

 

[suprarx7nut]

Those numbers look very good. CPS doesn't make a difference.

 

[supradjza80]

Mechanix gloves FTW

yes, but I just don't care about the extra 5 psi that I would gain from a hot test. All that matters is the difference between the cylinders.

 

[suprahero]

Found this in our Articles section. For those of you who haven't checked it out, it's got some really cool and informative threads on there. Top left of this page.
http://www.supramania.com/forums/showthread.php?t=97725

 

[Drake69]

Found this in our Articles section. For those of you who haven't checked it out, it's got some really cool and informative threads on there. Top left of this page.
http://www.supramania.com/forums/showthread.php?t=97725

Ohhh yeah. I printed that off a week ago when I had bought my sparks and wires. That makes the whole process easy as can be. It's also important to note that you will also need the procedures to remove the 3000 pipe and coilpack, and it doesn't hurt to swap out your plugs and wires if you haven't already done so. I printed everything off in order so there would be no question what needed to come off first, what needed to be done next, etc...

EDIT: the other procedures are also located in the Articles section as well. They are...

http://www.supramania.com/forums/showthread.php?t=97683&highlight=removing+3000 ---> 3000 pipe

http://www.supramania.com/forums/showthread.php?t=97684&highlight=removing+3000 ---> coil pack

 

[RPSil13]

I did my test cold b/c I had it apart to change plugs and vc gasket

and no throttle, in the tsrm it doesn't say anything about wot, unless I misread

 

[suprarich]

You should also pull the efi fuse. spraying fuel into your cylinder durning the test will give you a false higher number since fuel takes up space.

 

[RPSil13]

You should also pull the efi fuse. spraying fuel into your cylinder durning the test will give you a false higher number since fuel takes up space.

yup this was w/ the efi fuse pulled.

thanks everyone for the input, i guess, my engine has pretty good compression