hey whats up. does anyone know the compression values that an H22 motor (not the type S motor) is supposed to get?

does 150 170 170 170 psi sound good? blue smoke is coming out of the exhaust after a mishift. im assuming the rings or valve seal is no good on cylinder #1

 

if it were a ring its teh blowby you are seeing burning off, correct me if im wrong.

 

should be close to 200....but most important is that they are pretty much even across the board but deff close to 200 +

 

That sounds kinda of low IMO especially 150. But some other HT pros could convince me otherwise.

 

haha....thats nothing today i did a test on a jdm h22a and jot 130, 210, 210, 180......thats **** if F@ck*d up yo!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted k20 &raquo;</TD></TR><TR><TD CLASS="quote">hey whats up. does anyone know the compression values that an H22 motor (not the type S motor) is supposed to get?

does 150 170 170 170 psi sound good? blue smoke is coming out of the exhaust after a mishift. im assuming the rings or valve seal is no good on cylinder #1</TD></TR></TABLE>

the compression is supposed to be about 185. 170 is pretty good, but 150 is kinda low. Honda recomends that the compression variation should be no more than 28. So your pretty close, I would replace the rings and check the valves seals. But i would replace the rings first.

 

I had my JDM H22 tested a couple of months ago, and the results were 245 245 245 245. The guy testing it couldn't believe the numbers, so he did it three times, with the same results. Is there a possibility that somebody from JDM land upped the compression with pistons or something??

 

thanks alot for the info guys. oh yea, the throttle body was left closed, we didnt open it up during the compression test

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Demonlude &raquo;</TD></TR><TR><TD CLASS="quote">I had my JDM H22 tested a couple of months ago, and the results were 245 245 245 245. The guy testing it couldn't believe the numbers, so he did it three times, with the same results. Is there a possibility that somebody from JDM land upped the compression with pistons or something??</TD></TR></TABLE>

Run of the mill JDM H22a's have a 10.6:1 CR, instead of the USDM a1/a4's 10:1. The H22a-S has 11:1 pistons, as well.

So, yeah. JDM land gets higher compression...although 245 is high...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted k20 &raquo;</TD></TR><TR><TD CLASS="quote">thanks alot for the info guys. oh yea, the throttle body was left closed, we didnt open it up during the compression test</TD></TR></TABLE>

You need to redo it with the throttle open.

 

i did back to back tests yesterday on my buddies jdm h22 with tb closed and then w/o and got same results....whats up with that?????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Demonlude &raquo;</TD></TR><TR><TD CLASS="quote">I had my JDM H22 tested a couple of months ago, and the results were 245 245 245 245. The guy testing it couldn't believe the numbers, so he did it three times, with the same results. Is there a possibility that somebody from JDM land upped the compression with pistons or something??</TD></TR></TABLE>

I have a JDM h22 and im getting about 200-205.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Demonlude &raquo;</TD></TR><TR><TD CLASS="quote">I had my JDM H22 tested a couple of months ago, and the results were 245 245 245 245. The guy testing it couldn't believe the numbers, so he did it three times, with the same results. Is there a possibility that somebody from JDM land upped the compression with pistons or something??</TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dvp95 &raquo;</TD></TR><TR><TD CLASS="quote">

I have a JDM h22 and im getting about 200-205.</TD></TR></TABLE>

I'm trying to figure that out as well. I have a JDM block with a stage 2/3 head with type SH cams (for now) that has not been milled (unless the shop did without me knowing) and my compression is 250 247 246 250 (the block and head are fresh, so there is no carbon build up). I've been trying to figure out what kind of compression that equals. My assumption has been that a 10.6:1 comp ratio comes out around 210-220, an 11:1 would be around 230-235, so would 245-250 lbs be a 11.5:1 compression ratio or higher? These assumptions are somewhat educated but not from know-how.