i did the test 2 times and i think the #S are good. this was my first compression test ive done.
are these #s good?

#1 180, 185 <-- cranked it q extra time the 2nd test
#2 180, 180
#3 180, 180
#4 180, 180

there all close thats good right?

 

dude thats like perfect, just so they are all close to eachother right? and id say they are all within the alotted 10 or 15!

 

i really thought i was goan have a bad test, thats why i put it off for so long. now that ive done it im happy there all ok.

whats a new gsr put out for #s?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by oMekoneDC2 &raquo;</TD></TR><TR><TD CLASS="quote">i really thought i was goan have a bad test, thats why i put it off for so long. now that ive done it im happy there all ok.

whats a new gsr put out for #s?</TD></TR></TABLE>

search for that one, but i do think they are significantly higher than ur results...but im not sure, so u should search

 

your results are LOW. brand new B18C1 motors are rated at 270psi straight across. However the only good thing about your numbers is that they are even. which means motor wore down properly. Looks like it might be time for a rebuild. How many times did you cycle the motor? your supposed to cycle until the needle on the compression tester doesnt rise anymore..usually around 7 times. and make sure to hold that gas pedal all the way down. im not saying you didnt do it properly but some people do forget to do things and get innacurate results.

 

i only let it rev like 5 times, im shure it would have gone higher if i woulda keept reving it. i held the gas and the clutch in while i was doing it. and took the FI fuse out

 

make sure the car is at normal operating temp before you do it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by balch104 &raquo;</TD></TR><TR><TD CLASS="quote">How much do compression tests cost?</TD></TR></TABLE>

go get yourself a compression tester at autozone, $20-30 i think and DIY.
c-speed.com or search...

I got 225 across on mine at 150,000 miles

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by J337_UNIT &raquo;</TD></TR><TR><TD CLASS="quote">your results are LOW. brand new B18C1 motors are rated at 270psi straight across. However the only good thing about your numbers is that they are even. which means motor wore down properly. Looks like it might be time for a rebuild. How many times did you cycle the motor? your supposed to cycle until the needle on the compression tester doesnt rise anymore..usually around 7 times. and make sure to hold that gas pedal all the way down. im not saying you didnt do it properly but some people do forget to do things and get innacurate results.</TD></TR></TABLE>

misinformation here, the manual quotes 150-210psi is considered normal

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by balch104 &raquo;</TD></TR><TR><TD CLASS="quote">How much do compression tests cost?</TD></TR></TABLE>

The price of a compression tester... like $30 to $50 maybe? I can't remember what i paid for mine. You just remove a sparkplug starting from cylander 1 to 4
and plug in the compression tester where the spark plug would go in the cylander.
and crank the motor 3 times with your foot on the gas all the way down.
Its an analog guage that will tell you what your compression numbers are.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by J337_UNIT &raquo;</TD></TR><TR><TD CLASS="quote">your results are LOW. brand new B18C1 motors are rated at 270psi straight across. However the only good thing about your numbers is that they are even. which means motor wore down properly. Looks like it might be time for a rebuild. How many times did you cycle the motor? your supposed to cycle until the needle on the compression tester doesnt rise anymore..usually around 7 times. and make sure to hold that gas pedal all the way down. im not saying you didnt do it properly but some people do forget to do things and get innacurate results.</TD></TR></TABLE>

i dont think Rs will evin hit 270 stock

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Audipwr1 &raquo;</TD></TR><TR><TD CLASS="quote">

misinformation here, the manual quotes 150-210psi is considered normal</TD></TR></TABLE>

Yea, Helms puts stock numbers in this range.

 

#'s looks good, all cylinders are consistent.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by oMekoneDC2 &raquo;</TD></TR><TR><TD CLASS="quote">

i dont think Rs will evin hit 270 stock</TD></TR></TABLE>
well i dont know, but my boys GSR hit 220psi straight across with 96,000 miles.
As someone said..make sure your car is warmed up to normal operating temp. otherwise the piston rings and valve seals are not fully expanded and wont hold PSI at an optimum

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by J337_UNIT &raquo;</TD></TR><TR><TD CLASS="quote">
well i dont know, but my boys GSR hit 220psi straight across with 96,000 miles.
As someone said..make sure your car is warmed up to normal operating temp. otherwise the piston rings and valve seals are not fully expanded and wont hold PSI at an optimum
</TD></TR></TABLE>

not all compression testers are the same. Most are cheap and not properly calibrated
Consistent numbers really all that is important

 

You have to crank it over more then three times, you crank it at WOT until the needle stops jumping. The compression tester will say in the directions, on low compression engines, crank 5-6 times, on higher compression engines (Almost all honda engines), crank over 10 + times.

 

im gona re do the test and see if i get higher #s

 

That's pretty good. Very good all the way through.

 

ok i re did the test today with the car all the way warmed up. i did the test 2 times again and i cranked the motor 12 times each cyl.

1 200
2 200
3 200
4 200

my tester is ghetto and i can only get general #s.
when i say 200 i mean 198-203.

this is better right?

 

Looks good. considering how close they were on the first test I did not think a second was needed. At least now you have piece of mind

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlackSage &raquo;</TD></TR><TR><TD CLASS="quote">At least now you have piece of mind</TD></TR></TABLE>

thats why i did it again.

 

ready-for-boost-

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by erikgsr &raquo;</TD></TR><TR><TD CLASS="quote">ready-for-boost- </TD></TR></TABLE>

you really think my motor can handdle it at 150k miles? i really wana boost but im scared im gona blow her up

 

Do-you-plan-on-keeping-the-car...and-rebuilding-the-engine?If-anything...I-am-in-the-same-boat...but-i-got---100k-on-a-c1-engine...
Sorry-about-the-dashes-space-bar-is-not-working
Erik

 

i think im gona put togher a custom kit and boost that for now while i save for a rebuild