Dealer did the Compression test after the valve adjustment today.

#4 170
#3 165
#2 165
#1 160

I think i saw that most people were in the 200's...the tech said that the car is fine and they are within spec......Is this right?

 

seems kinda low, but atleast there is not much variation between the cylinders.

 

They are close to each other, You should have no problems.

as for with in spec... I thought anything above 160 is good ???

 

I thought around 180 was typical for a stock compression R. so 160-170 seems kinda low but I dont know the "within spec" numbers recommended by Honda. how many miles on the motor?

 

about 50,000

 

well what did the dealer say about the numbers?

edit: not that it means anything

 

they said the numbers are fine and losing 1.5 qts of oil is normal between oil changes... the reason i brought my car in oil loss and my bumper black from my exhaust. I guess i can sleep better now

 

well the lower compression numbers, plus the fact you are losing so much oil, could just be a sign your rings are wearing and will need to be replaced soon. thats what it sounds like to me. the harder you beat the car, the more oil you are going to lose and vice versa. might wanna start looking into oversized CTR pistons and some sort of engine management

 

The black bumper from exhaust means your running rich. Get your car fuel tuned. Espeically if you have mods.

 

could also be oil though.

been there done that.

 

The only mod i have is an AEM CAI....
What needs to be done to tune the fuel?

 

is this with the gas pressed all the way to the floor

 

For reference, here are my numbers:

184,181,190,195 (4,3,2,1)

I did the test after running the car very hard for about 15 minutes, then easy cruising for the last mile. Fuel injectors disconnected, and throttle wide open, boost pipe disconnected (throttle body open to atmosphere), about 10 cranking revolutions.

My car has 53K miles, and drinks about 1 quart of synthetic between oil changes

btw..just because an Acura tech did the test, doesn't mean he knows what he's doing, he could very well be a hack that slipped through the system.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FOrSfEd &raquo;</TD></TR><TR><TD CLASS="quote">is this with the gas pressed all the way to the floor</TD></TR></TABLE>

I'm not sure the dealer did the test.

 

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

I'm not sure the dealer did the test.</TD></TR></TABLE>

you should ask the dealer to redo the compression test because your results are shady.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2 &raquo;</TD></TR><TR><TD CLASS="quote">seems kinda low, but atleast there is not much variation between the cylinders. </TD></TR></TABLE>

actually this is right around where you want your #'s. YOu often see #'s in the 240's and 250's but i am sure that those who receive those kinds of results are cranking more then the minimum which i have always learned to be a solid 4. The more you crank the more compression you are going to read obviously. My buddy whose dealership sends him to school all the time for different classes told me the same thing as well. All in all, the consistency of the #'s is what is key though

 

my friend and I did the test and those are the same numbers i got....
I tested with just trying to turn the car over 4 cranks...didn't have my foot on the gas pedal...My car is not under warrenty and I would think if something was wrong the dealer would have said that they found the problem with the Rings ....you know how the rest works....I would think that any excuse the dealer would look to screw me knowing that they car is not covered.

 

i think you are SUPPOSED to have your foot on the gas, WOT, and the motor should be warm.

 

Also, different compression testers read different #'s

The gauge i have reads in the 220-240 for ITR motors, atleast the 2 that ive tested

 

mine yields around 265-270 for all the cyclinders. The helms manual says to crank it over a min of 10 times per cycliner to get an accurate reading.

 

Mine was 260 all the way across

 

seems low to me, I get 155 across all 4 cyl but im using 9:1 pistons

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by furious94ls &raquo;</TD></TR><TR><TD CLASS="quote">The black bumper from exhaust means your running rich. Get your car fuel tuned. Espeically if you have mods. </TD></TR></TABLE>\

what needs to be done and where can i go for this?
I only have a AEM CAI.

 

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

what needs to be done and where can i go for this?
I only have a AEM CAI.</TD></TR></TABLE>

THIS IS NOT THE PROBLEM. OR ELSE EVERY ITR YOUVE EVER SEEN(minus NBP/FBP) WOULD HAVE A BLACK BUMPER. Yes the ITR runs rich off the showroom floor, but not so much as to tar your rear bumper like that.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FOrSfEd &raquo;</TD></TR><TR><TD CLASS="quote">mine yields around 265-270 for all the cyclinders. The helms manual says to crank it over a min of 10 times per cycliner to get an accurate reading. </TD></TR></TABLE>

I did not know this.....i am interested to look at my manual.