hondaeg5

1-230
2-230
3-230
4-230

what do you guys think? maybee the wrong forum but i figured i would get better info here.

NonovUrbizniz

what motor?

those are REALLY nice numbers... usually they're 180-210...

hondaeg5

h22 this is a old motor that has been beaten. i cranked the motor 5 times for each cylinder. im surprised as well.

NonovUrbizniz

Yeah that's sweet... could be carbon deposits upping the compression... but it could also just be a strong engine.

Jimmy

iTrader: (5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NonovUrbizniz &raquo;</TD></TR><TR><TD CLASS="quote">Yeah that's sweet... could be carbon deposits upping the compression... but it could also just be a strong engine.</TD></TR></TABLE>

yep, IMHO something sounds wrong

blackeg

amazing. it is a little high, but i wouldnt get too too worried about it. its probably just a lil carbon built up like someone else said. id rather be a little high than a little low anyway

hondaeg5

yea im sure this motor has alot of miles on it. it runs strong. just wanted to be sure before the track opens. thanks guys

Evs-One

Do you really need to make a post about this??? seriously?

Cause they are obviously perfect numbers

And the actual number isn't that important, rather the difference in the numbers is what is vital. I've used different gauges on the same engine back to back and got completely different readings, but there were the same across the board.

One went 200-200-200-205 and the other went 180-180-180-185....

Maintenance

compression is good Looks like your motor is pretty healthy. You shouldnt be worry about anything except perfect compression.

hondaeg5

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Emerika &raquo;</TD></TR><TR><TD CLASS="quote">Do you really need to make a post about this??? seriously?

Cause they are obviously perfect numbers

And the actual number isn't that important, rather the difference in the numbers is what is vital. I've used different gauges on the same engine back to back and got completely different readings, but there were the same across the board.

One went 200-200-200-205 and the other went 180-180-180-185....</TD></TR></TABLE>

excuse me? then dont respond.

Madspeed

"carbon deposits"...interesting information, i never thought of that, and while doing compression checks on older engines...so Im taking it for truth?.....H-T rules
thanks for the post.

Evs-One

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">excuse me? then dont respond. </TD></TR></TABLE>

I'm just saying it's obvious that the results are perfect and you have nothing to worry about. It's like asking if it's normal for your car to start up perfectly - not being a dic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Madspeed &raquo;</TD></TR><TR><TD CLASS="quote">"carbon deposits"...interesting information, i never thought of that, and while doing compression checks on older engines...so Im taking it for truth?.....H-T rules
thanks for the post.</TD></TR></TABLE>

carbon deposits decrease the volume of the cylinder at TDC...not really going to show up on compression test tho. But this is one of the reasons for older engines to ping.

hondaeg5

yea i know. im not trying to be a dick either,but i thought it was a little high and i wanted something to compare it to.

Evs-One

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaeg5 &raquo;</TD></TR><TR><TD CLASS="quote">yea i know. im not trying to be a dick either,but i thought it was a little high and i wanted something to compare it to. </TD></TR></TABLE>

A little high is when you pin the gauge at 260 after the second revolution ....like my D16Z6 with p29 pistons

Compression gauges are like dynos....it's just a tool to use for comparison and results vary from tool to tool.

hondaeg5

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

A little high is when you pin the gauge at 260 after the second revolution ....like my D16Z6 with p29 pistons .</TD></TR></TABLE>

holy ****! thanks for your help

RyanEJ8

Those numbers are too perfect.

These are mine on D16Y8 with ~10.1 C/R
#4 229 psi
#3 227 psi
#2 230 psi
#1 221 psi

I was actually a little worried about number 1 on mine.

illicon2003

how do you test compression on a motor? I know it involves removing the header but what equiptment is used? Thanks

Who Said

did you have the throttle open as you were cranking?

^jefs0ng

My 1st cylinder pushes 82 psi..

NonovUrbizniz

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by illicon2003 &raquo;</TD></TR><TR><TD CLASS="quote">how do you test compression on a motor? I know it involves removing the header but what equiptment is used? Thanks</TD></TR></TABLE>

No you don't...

It envolves removing the spark plugs and pulling the fuse for the injectors...

Then you screw in the compression tester (available at just about any car-parts store) then you crank the engine till the needle on the guage tops out.

Mr Hammond

It also INvolves holding the throttle all the way open while doing so as well.