so i did my compression test and I got 195,198,200,202 from left to right. BUT im thinking the gauge is foked. check out the vid doesnt move until 5th turn....im sure if i kept it going it would go higher but it looked like they toped out around ^those numbers. also look at my spark plugs...look a bit white'ish if you ask me. i hit boost 2 times by mistake and it was only 2lbs-5lbs soooo im hopeing that didnt hurt it any. reason being, im not tuned yet...RPMs still a bit jumpy too. mabye do to my 750cc injectors and a 8lb flywheel?
http://wtflip.com/guar4life/compressiontest.wmv

 

Took 5 turns or less on mine. Using a MAC tools comp tester that had a leak. stock GSR; compression (10.1:1), pulled 250 260 250 255. Never took more than 5 turns and that last one was just to make sure it was peaking.

 

damn my numbers sound low compaired to yours....is this ok?

 

the basic rule of thumb is if the numbers are consistent then they are good. the just cant go below i believe 130

 

plug looks like your runnin lean
by the way compression looks ok

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by projectTeG &raquo;</TD></TR><TR><TD CLASS="quote">the basic rule of thumb is if the numbers are consistent then they are good. the just cant go below i believe 130</TD></TR></TABLE>

exactly. Not all guages are created equal. When i had my Si, the compression numbers were 220-230 across the board (about 10.2:1 compression). When i tested my B18b engine it was 180 even across the board. I think it's fine though, what you're really looking for is consistency.

 

cool

 

your compression tester sucks, mine took like 3 turns to pump all the way up

 

Yeah compression numbers vary, You do not want them 15 or more apart from each other, then you have issues. 15 Is kinda the limit.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ENJOYtheRIDE &raquo;</TD></TR><TR><TD CLASS="quote">Took 5 turns or less on mine. Using a MAC tools comp tester that had a leak. stock GSR; compression (10.1:1), pulled 250 260 250 255. Never took more than 5 turns and that last one was just to make sure it was peaking.</TD></TR></TABLE>

Cheaper compression testers have a larger dead volume. This lowers the ultimate compression number and requires more stroke to fill that volume. The MAC tester is a good tool, even with the leak. My craptastic tester reads a consistent 205 psig on my 10.3:1 GSR with ITR cams. As mentioned before, consistency is the key.

 

thanks guys

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by angelSIR-G &raquo;</TD></TR><TR><TD CLASS="quote">plug looks like your runnin lean
by the way compression looks ok</TD></TR></TABLE>

the plugs looks like hes burning oil( black on the inner ceramic)

 

The plugs on my 45 mile fresh motor look like that too, I also looked at my pistons when the plugs were out and they looked pretty black for only having 45 miles on them..... wtf is the deal there?