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-   -   DISI Compression Results (http://www.mazdaspeedforums.org/forum/f10/disi-compression-results-43395/)

ABolewski 06-03-2013 07:10 AM
Quote:
Originally Posted by himurax13 (Post 2094214)
12 hours if you have no suspension to remove and if lots of fail is involved, haha. Just have someone buy oil filters and oil while you are gone every few months. Its doable but arrangements need to be made before bringing it in.;-)

Sent via blown passenger side speakers.
Hmmm, that actually might work. While it's parked, just buy oil/filter every two/three months. And would it matter if I'm on coils? I have stock springs and front struts but I don't have rear shocks. What about motor mounts? I feel like no matter what I do, they'll find something to void the warranty.

himurax13 06-03-2013 09:49 AM
Quote:
Originally Posted by ABolewski (Post 2094431)
Hmmm, that actually might work. While it's parked, just buy oil/filter every two/three months. And would it matter if I'm on coils? I have stock springs and front struts but I don't have rear shocks. What about motor mounts? I feel like no matter what I do, they'll find something to void the warranty.
The last time I stocked someone out, we took off his coils because he was selling. I really hate doing suspension work. I highly doubt they can deny you for having suspension work. I am sure you can find a stock intake mani on the for sale threads.

The mounts have to be swapped. The only thing that can stay is the fuel pump internals.

Sent via blown passenger side speakers.

silvapain 06-03-2013 10:02 AM
I'd pull the internals anyways. They may replace the pump for some unknown reason, and then you're out $300+. It only takes 15 minutes to swap internals.

Micha 06-03-2013 10:24 AM
I have a stock fuel pump you can use and I know someone that might buy your intake mani from you and give you his stock one.

@Spoc;

ABolewski 06-03-2013 10:24 AM
I'd definitely throw stock internals in there, exactly why silvapain said.

Also, this isn't the thread for this, I'll PM you @himurax13;
This might work out better then I thought.

EDIT: @Micha; I'll sext you. Swapping mani's would work perfect, I'd give him my JBR gasket too and use his stock one. I have my on internals still.

himurax13 06-03-2013 12:11 PM
Quote:
Originally Posted by ABolewski (Post 2094773)
I'd definitely throw stock internals in there, exactly why silvapain said.

Also, this isn't the thread for this, I'll PM you @himurax13;
This might work out better then I thought.

EDIT: @Micha; I'll sext you. Swapping mani's would work perfect, I'd give him my JBR gasket too and use his stock one. I have my on internals still.
All you have to do is get the Stock Catback from @lilred; and you are set. :)

DTKII 06-03-2013 05:50 PM
Let me know what you guys think please. I started to smoke about 2 weeks ago since then I've added a JBR OCC with VTA kit (still waiting on Check Valve), a BNOON Bolt, and Rotella 5w-40. The other mods are in my Sig. So after these modifications I'm still smoking so i decided to do a compression test.

08 MS3 60,500 miles 862ft ASL
#1 191
#2 172
#3 171
#4 171

I think if it was 170's across the board I would be ok with these results but with cylinder 1 being so much higher I don't know what to think? I'm hoping the check valve will help maybe my PCV valve is junk which is causing me to smoke. If not then I hope its just the turbo. Do you guys think it might be something else with the compression results above? Thanks for any advice!

theurgy 06-03-2013 05:51 PM
How warm was your engine when you did the test and did you crank until the needle stopped?

DTKII 06-03-2013 05:57 PM
Quote:
Originally Posted by theurgy (Post 2095738)
How warm was your engine when you did the test and did you crank until the needle stopped?
Engine was up to Temp, I cranked it until i heard about 4 pumps of air.

Tokay444 06-03-2013 05:58 PM
That's your problem.
Crank till gauge doesn't move.

DTKII 06-03-2013 06:01 PM
Quote:
Originally Posted by Tokay444 (Post 2095752)
That's your problem.
Crank till gauge doesn't move.
Shit just got it all back together Thank you i will update after i test it again.

DTKII 06-03-2013 06:28 PM
Okay, after re testing the compression it is higher but there is still a 20psi difference in cylinder1 and the rest of them. Other info a couple posts above. Thanks.

#1 192
#2 172
#3 171
#4 171

Thanks for the tip, now what are your thoughts?

himurax13 06-03-2013 07:23 PM
Quote:
Originally Posted by DTKII (Post 2095809)
Okay, after re testing the compression it is higher but there is still a 20psi difference in cylinder1 and the rest of them. Other info a couple posts above. Thanks.

#1 192
#2 172
#3 171
#4 171

Thanks for the tiip, now what are thoughts?
The prognosis is not good. It is a 10% difference. A little more and I would be getting ready to take some action.

timjs 06-03-2013 09:09 PM
Quote:
Originally Posted by DTKII (Post 2095809)
Okay, after re testing the compression it is higher but there is still a 20psi difference in cylinder1 and the rest of them. Other info a couple posts above. Thanks.

#1 192
#2 172
#3 171
#4 171

Thanks for the tip, now what are your thoughts?
How does the car behave, aside from smoking turbo syndrome?
You're technically still in specs. I wouldn't worry too much if the engine is running fine.
Sorry if I missed some information somewhere.

DTKII 06-03-2013 09:51 PM
Quote:
Originally Posted by timjs (Post 2096099)
How does the car behave, aside from smoking turbo syndrome?
You're technically still in specs. I wouldn't worry too much if the engine is running fine.
Sorry if I missed some information somewhere.
The car runs fine other than the smoking, I figured I would run a compression test to make sure the rings were ok. It seems to have good compression just a big variance from 1 and the rest of cylinders. I hope your right bc a turbo is much easier to replace than internals. Thanks

theurgy 06-04-2013 12:30 AM
Leak down test should be your next step.

duappleganger 06-04-2013 10:06 AM
Well i just did my first compression test. Car is a 2011 genpu with 57,000 miles. Basically fully bolted around 20,000 and BT at ~52,000. Results are as follows.

(Passenger Side)
Cylinder 1: 174
Cylinder 2: 183
Cylinder 3: 184
Cylinder 4: 184
(Driver Side)

I was going to test cylinder one again to confirm the slightly lower reading but after the engine cranked a few times I blew the hose on the tester kit apart. It was a rented autozone kit though so w/e. Do you guys think I have anything to worry about at the moment?

Tyhackman15 06-04-2013 10:11 AM
Quote:
Originally Posted by duappleganger (Post 2096913)
Well i just did my first compression test. Car is a 2011 genpu with 57,000 miles. Basically fully bolted around 20,000 and BT at ~52,000. Results are as follows.

(Passenger Side)
Cylinder 1: 174
Cylinder 2: 183
Cylinder 3: 184
Cylinder 4: 184
(Driver Side)

I was going to test cylinder one again to confirm the slightly lower reading but after the engine cranked a few times I blew the hose on the tester kit apart. It was a rented autozone kit though so w/e. Do you guys think I have anything to worry about at the moment?
5% difference, and the gauge is probably only accurate +/- like 3-5% so I wouldn't worry about it IMO

duappleganger 06-04-2013 10:35 AM
Nonetheless, I am pretty excited that cylinder 3 isn't being a little bitch.

atvfreek 06-04-2013 11:22 AM
Quote:
Originally Posted by duappleganger (Post 2096991)
Nonetheless, I am pretty excited that cylinder 3 isn't being a little bitch.
Those results look great!

aviator79 06-08-2013 10:03 PM
did my MS6 and CX7 last night while changing oil in both.
My car has 40k and got 190s on all cylinders
CX-7 has 70k and got
1:180psi
2:180psi
3:150psi
4:180psi

Weird that oil level was perfect in CX-7 but I was down a couple of quarts in mine a week or so ago. I started a job that is a 100mi/day commute so I figured it would be a good time to make sure my car was up to the job.

GUess I need to sell the cx7

himurax13 06-08-2013 10:46 PM
Quote:
Originally Posted by aviator79 (Post 2104653)
did my MS6 and CX7 last night while changing oil in both.
My car has 40k and got 190s on all cylinders
CX-7 has 70k and got
1:180psi
2:180psi
3:150psi
4:180psi

Weird that oil level was perfect in CX-7 but I was down a couple of quarts in mine a week or so ago. I started a job that is a 100mi/day commute so I figured it would be a good time to make sure my car was up to the job.

GUess I need to sell the cx7
How many miles? Warranty? Was engine hot? Did you do a wet test?

Sent via blown passenger side speakers.

theurgy 06-09-2013 12:08 AM
TL: DR Which relay do I pull to do the compression test?
Injector or Fuel Pump?

himurax13 06-09-2013 12:21 AM
Quote:
Originally Posted by theurgy (Post 2104721)
TL: DR Which relay do I pull to do the compression test?
Injector or Fuel Pump?
I don't pull anything. I just keep the clutch and gas floored while cranking.

Sent via blown passenger side speakers.

Tokay444 06-09-2013 05:36 AM
^that

atvfreek 06-09-2013 07:11 AM
Quote:
Originally Posted by theurgy (Post 2104721)
TL: DR Which relay do I pull to do the compression test?
Injector or Fuel Pump?
As these guys just stated. I just mash my gas pedal to the floor. That shuts the injectors off, as its a factory "clear flood" mode

theurgy 06-09-2013 07:24 AM
Sounds good, I jest remember the last time I did a compression test I had pulled a relay of sorts.
Isn't this similar to the procedure to pressurize the fuel rail?

himurax13 06-09-2013 07:38 AM
Quote:
Originally Posted by theurgy (Post 2104857)
Sounds good, I jest remember the last time I did a compression test I had pulled a relay of sorts.
Isn't this similar to the procedure to pressurize the fuel rail?
Yes. I also don't pull fuses for fuel internal installs either.

Sent via blown passenger side speakers.

theurgy 06-09-2013 07:53 AM
Well my results should be posted later today.

theurgy 06-09-2013 03:48 PM
Results:
1-4 (left to right)

1: 165
2: 170
3: 160
4: 165

aviator79 06-09-2013 04:47 PM
Quote:
Originally Posted by himurax13 (Post 2104675)
How many miles? Warranty? Was engine hot? Did you do a wet test?

Sent via blown passenger side speakers.
As I stated CX7 has 70k so it is out of Mazda warranty. I have a 100k warranty we bought with it when I got it from carmax but doubt they will do anything for me.
Engine was warm, but it is clear cyl 3 is fucked. Wet test as in with fuel on? no pulled INJ relay. Or wet as in spray oil in and see if numbers go up to determine if rings bad? I guess I can do that. I just cleaned intake valves at 60k so I doubt there is a problem with them sealing but who know. Could do a leakdown test but not sure what this will tell me also. Car gets 14mpgs so have been wanting to get something new but owe 11k so its not like I could sell it and buy a new car with the profits. Wife wants a minivan but they dont get great mileage either. But either way I think we should get rid of the CX7 soon...

himurax13 06-09-2013 05:49 PM
Quote:
Originally Posted by aviator79 (Post 2105340)
As I stated CX7 has 70k so it is out of Mazda warranty. I have a 100k warranty we bought with it when I got it from carmax but doubt they will do anything for me.
Engine was warm, but it is clear cyl 3 is fucked. Wet test as in with fuel on? no pulled INJ relay. Or wet as in spray oil in and see if numbers go up to determine if rings bad? I guess I can do that. I just cleaned intake valves at 60k so I doubt there is a problem with them sealing but who know. Could do a leakdown test but not sure what this will tell me also. Car gets 14mpgs so have been wanting to get something new but owe 11k so its not like I could sell it and buy a new car with the profits. Wife wants a minivan but they dont get great mileage either. But either way I think we should get rid of the CX7 soon...
Sounds like a plan.

Sent via blown passenger side speakers.

Tokay444 06-10-2013 07:58 AM
Quote:
Originally Posted by aviator79 (Post 2105340)
As I stated CX7 has 70k so it is out of Mazda warranty. I have a 100k warranty we bought with it when I got it from carmax but doubt they will do anything for me.
Engine was warm, but it is clear cyl 3 is fucked. Wet test as in with fuel on? no pulled INJ relay. Or wet as in spray oil in and see if numbers go up to determine if rings bad? I guess I can do that. I just cleaned intake valves at 60k so I doubt there is a problem with them sealing but who know. Could do a leakdown test but not sure what this will tell me also. Car gets 14mpgs so have been wanting to get something new but owe 11k so its not like I could sell it and buy a new car with the profits. Wife wants a minivan but they dont get great mileage either. But either way I think we should get rid of the CX7 soon...
cleaning the backs/stems of the valves won't do much for the seats.

aviator79 06-10-2013 07:31 PM
Quote:
Originally Posted by Tokay444 (Post 2105996)
cleaning the backs/stems of the valves won't do much for the seats.
So your saying there could just be a piece of gunk on the seat causing it not to seal? I guess adding oil and retesting compression and doing a leakdown will tell me what it is better?

When I cleaned my intake valves on another engine I could not get one of the valves to seal as the B12 would always drain out overnight. However it obviously did get clean after I ran it as it now has 180psi... so it is def possible that its just gunk.

sidekick 06-11-2013 03:20 PM
Quote:
Originally Posted by aviator79 (Post 2107154)
So your saying there could just be a piece of gunk on the seat causing it not to seal? I guess adding oil and retesting compression and doing a leakdown will tell me what it is better?

When I cleaned my intake valves on another engine I could not get one of the valves to seal as the B12 would always drain out overnight. However it obviously did get clean after I ran it as it now has 180psi... so it is def possible that its just gunk.
It could be, but keep in mind that valves rotate during normal operation and that helps keep the seat clear of debris like that. It is always possible though.

DTKII 06-12-2013 08:42 AM
Alright I did a leak down test and pushed oil out of the dipstick while testing cylinder 2 so it looks like I'm gonna have to build the motor?

himurax13 06-12-2013 09:02 AM
Quote:
Originally Posted by DTKII (Post 2109693)
Alright I did a leak down test and pushed oil out of the dipstick on cylinder 2 so it looks like I'm gonna have to build the motor?
Huh?

Sent via blown passenger side speakers.

DTKII 06-12-2013 09:18 AM
Quote:
Originally Posted by himurax13 (Post 2109733)
Huh?

Sent via blown passenger side speakers.
While performing a leak down test on cylinder 2 oil started coming out of the dip stick tube. I'm pretty sure it did that bc I put my finger over the valve cover vent so the air had no where else to go so it pushed oil out.

Here is my post from a couple of days ago.....

Okay, after re testing the compression it is higher but there is still a 20psi difference in cylinder1 and the rest of them. Other info a couple posts above. Thanks.

#1 192
#2 172
#3 171
#4 171

Thanks for the tip, now what are your thoughts?

btstarcher 06-12-2013 09:25 AM
Soooooooo dipstick was removed from tube?

DTKII 06-12-2013 09:26 AM
Quote:
Originally Posted by btstarcher (Post 2109777)
Soooooooo dipstick was removed from tube?
Yes to see if I could hear air coming out of it while doing a leak down test.

Tokay444 06-12-2013 09:40 AM
What percentage leak did you measure?

DTKII 06-12-2013 09:50 AM
Quote:
Originally Posted by Tokay444 (Post 2109817)
What percentage leak did you measure?
About 30% 75psi down to 55psi. I'm getting ready to email SPEEDPERF6RMANC3 for a quote on a short block.

Nliiitend1 06-12-2013 09:58 AM
Quote:
Originally Posted by Nliiitend1 (Post 1321511)
I checked my compression tonight. '08 MS3 with ~49K miles.

From left to right, it was:

128
126
127
129

I need to check it again with a different gauge/tester, as I'm not too confident in the accuracy of the one I used.

Related thread here:

http://www.mazdaspeedforums.org/foru...-issues-92171/
Finally got around to doing this again with my shiny new compression tester and here are the results (car now has 61,819 miles):

Again, from left to right (with the engine warm):

186
182
189
186

I feel a bit better about those numbers. :)

Dano 06-12-2013 10:16 AM
shitty tester was shitty

What you can take away from any test is consistency. even low numbers, if they are all in the same ballpark is a good indication the motor is healthy and the gauge is the problem.

fivefingerdeathpunch 07-22-2013 10:27 PM
bumpity bump

did a compression test today. did it how a friend said to do it. dont think the engine was warm by the time i did the test

anyway got from left to right.. 170, 157, 170, 157

one person said thats fine... do you guys agree? i liked the consistency but obviously two are lower than the other two. should i redo with the proper method from the first page?

himurax13 07-22-2013 11:05 PM
Quote:
Originally Posted by fivefingerdeathpunch (Post 2172388)
bumpity bump

did a compression test today. did it how a friend said to do it. dont think the engine was warm by the time i did the test

anyway got from left to right.. 170, 157, 170, 157

one person said thats fine... do you guys agree? i liked the consistency but obviously two are lower than the other two. should i redo with the proper method from the first page?
It isn't terrible but you should have done a wet test.

Sent via blown passenger side speakers.

fivefingerdeathpunch 07-22-2013 11:15 PM
Quote:
Originally Posted by himurax13 (Post 2172421)
It isn't terrible but you should have done a wet test.

Sent via blown passenger side speakers.
yeah i shouldve done it exactly as mentioned on the first page but my friend said he knew how to do it so i did what he said haha. i may redo it and do a wet test too if its the same results

Tokay444 07-23-2013 06:01 AM
A compression test doesn't really paint a full picture.
For example, my compression has always been in spec (when I do it by the MSF disi standard testing procedure), but my leakdown shows 31% leak in cyl 3.
If you go to the trouble to do a comp test, do a proper leak test at the same time.

sidekick 07-23-2013 01:16 PM
Quote:
Originally Posted by Tokay444 (Post 2172590)
A compression test doesn't really paint a full picture.
For example, my compression has always been in spec (when I do it by the MSF disi standard testing procedure), but my leakdown shows 31% leak in cyl 3.
If you go to the trouble to do a comp test, do a proper leak test at the same time.
What is your compression number on that cylinder? It must be lower. That's a ton of leakage. How high does the gauge read on the first compression stroke when testing that cylinder? A low reading on the first stroke can also indicate issues, even if overall compression numbers are in spec.

scubasteve711 07-23-2013 01:26 PM
Agreed that a comp. test doesn't tell the whole story, but a cylinder that leaks down at 31% is going to have a variance in the comp test....

Tokay444 07-23-2013 01:53 PM
Quote:
Originally Posted by sidekick (Post 2173429)
What is your compression number on that cylinder? It must be lower. That's a ton of leakage. How high does the gauge read on the first compression stroke when testing that cylinder? A low reading on the first stroke can also indicate issues, even if overall compression numbers are in spec.
Compression at time of leak down was 182-176-178-180.

First pump is 90. Same as the rest.

sidekick 07-23-2013 02:04 PM
Quote:
Originally Posted by Tokay444 (Post 2173532)
Compression at time of leak down was 182-176-178-180.

First pump is 90. Same as the rest.
Something isn't adding up. 30% leakage is significant. Did you find the source of the leakage? Rings, valves?


EDIT: Don't you have an issue with oil in your intact tract? Those compression numbers could be similar to "wet test" numbers if a significant amount of oil is entering your combustion chamber.

Tokay444 07-23-2013 02:34 PM
It's rings. Most likely a broken land. I burn a litre of oil/1000kms.

sidekick 07-23-2013 02:36 PM
Quote:
Originally Posted by Tokay444 (Post 2173668)
It's rings. Most likely a broken land. I burn a litre of oil/1000kms.
Very interesting findings. Maybe your rings still seal well, but the cracked ringland is the source of the leakage? Any plans for a teardown?

Tokay444 07-23-2013 02:42 PM
Not until after my wedding.

btstarcher 07-23-2013 03:22 PM
Fucking liters....WTF Canada. :unitedstates:

Tokay444 07-23-2013 05:29 PM
Litres*

silvapain 07-23-2013 07:31 PM
Quote:
Originally Posted by Tokay444 (Post 2173965)
Litres*
Quarts*


Sent from my iPhone using Tapatalk 2

BigRedSpecial 07-23-2013 07:43 PM
*Furlongs

Micha 07-23-2013 07:47 PM
Fathoms*

BigRedSpecial 07-23-2013 07:51 PM
My car gets 16 rods to the hogs head, and that's the way I likes it

Dano 07-23-2013 11:14 PM
^^^^ fagots*

theurgy 07-23-2013 11:23 PM
Quote:
Originally Posted by btstarcher (Post 2173761)
Fucking liters....WTF Canada. :unitedstates:
You realize the rest of the world uses the metric system now right?

btstarcher 07-24-2013 12:28 AM
'Merica. Fuck you.

:usa:


:fuckyou:

Tokay444 07-24-2013 03:52 AM
Quote:
Originally Posted by Dano (Post 2174475)
^^^^ fagots*
faggots*

Quote:
Originally Posted by silvapain (Post 2174156)
Quarts*


Sent from my iPhone using Tapatalk 2
almost.

Dano 07-24-2013 09:54 AM
Quote:
Originally Posted by Tokay444 (Post 2174576)
faggots*
Thanks for the spelling correction...I knew a faggot would know how to spell it...you fell right into the trap :)

now rebuild your POS motor already.

Tokay444 07-24-2013 10:02 AM
tarp*

Dano 07-24-2013 10:04 AM
negative...you did in deed fall into my T R A P !

Tokay444 07-24-2013 10:21 AM
i really just want you to wrap me up in your tarp.
baby oil?

Dano 07-24-2013 10:27 AM
hahaha

not right now...maybe later?

azazelthegreat 07-28-2013 02:33 PM
Cylinders 1 3 and 4 were around 180
Cylinder 2 was at 60

Looked for leaks
Hooked my compressor to c2
No air from anywhere

himurax13 07-28-2013 02:37 PM
Quote:
Originally Posted by azazelthegreat (Post 2182423)
Cylinders 1 3 and 4 were around 180
Cylinder 2 was at 60

Looked for leaks
Hooked my compressor to c2
No air from anywhere
How did you look for leaks?

azazelthegreat 07-28-2013 02:48 PM
Quote:
Originally Posted by himurax13 (Post 2182429)
How did you look for leaks?
w
Air compressor hose where the cylinder 2 plug goes

Listened for air from intake oil cap area abx exaust

Came from intake at first but my friend told me to crank the motor once and it went away.


Going to his house in a few days to redo it just in case

btstarcher 07-28-2013 03:06 PM
I thought that leakdown test required you to be at TDC? Anyway also check around injector seals and dipstick. If it's coming from intake, is that intake valves?

Dano 07-28-2013 03:51 PM
Yes TDC compression stoke otherwise air just goes out the valves.

Tappin

ms3blackmica 08-05-2013 09:43 AM
Checked Compression again @ 73,000 miles yesterday. Motor was warm but not hot.

Still looking good.

203 202 202 205

https://www.youtube.com/watch?featur...&v=h_c66_ZHe4E

btstarcher 08-05-2013 09:50 AM
Quote:
Originally Posted by ms3blackmica (Post 2195599)
Checked Compression again @ 73,000 miles yesterday. Motor was warm but not hot.

Still looking good.

203 202 202 205

https://www.youtube.com/watch?featur...&v=h_c66_ZHe4E
I want to borrow your tester.

ms3blackmica 08-05-2013 09:51 AM
Quote:
Originally Posted by btstarcher (Post 2195616)
I want to borrow your tester.
I would gladly send it over to you Ben but it isn't mine!

ArmanRus 08-05-2013 10:16 AM
I need to do this. I'm at 102k miles and although she's pulling strong and not burning any oil, I want to for the peace of mind.

LatinKraze 08-05-2013 09:48 PM
2007 106,000 miles
Fully Bolted +BNRs3

119-121-120-121

On two different gauges (HF and O'Rileys). Wet test gave me an extra 2-3 psi. My buddy is letting me borrow a tester where he hits 180 psi. We'll see what his gauge yields and we'll also be doing a leak down

btstarcher 08-06-2013 06:59 AM
Was the engine at operating temperature? Those numbers look fine; only 2psi difference.

theurgy 08-06-2013 11:31 AM
Yeah I'm thinking your engine wasn't warm enough.

speed23 08-06-2013 11:50 AM
140000km. car felt slow so i tested it 160,170,160,170. i dont think i let it turn ove r enough on the 160 cylinders. Guess car is just slow...but at least no issues.

Little John 08-06-2013 12:02 PM
150 across the board! Car was tested cold and warm, and tested on another car which tested 180 in all four!

theurgy 08-06-2013 12:26 PM
Quote:
Originally Posted by speed23 (Post 2197815)
140000km. car felt slow so i tested it 160,170,160,170. i dont think i let it turn ove r enough on the 160 cylinders. Guess car is just slow...but at least no issues.
Intake Valve Cleaning?

Got any datalogs?

speed23 08-06-2013 03:49 PM
I run meth but probably need a valve cleaning (although before and after dynos dont really show that much of an improvement...). I ve got lots of logs and all is well in those. I went from a speed3 to a speed6 and the 6 is just heaver wwith more drivetrain loss so is slower than iam used to.

CosmicArkie 08-06-2013 04:44 PM
Quote:
Originally Posted by btstarcher (Post 2195616)
I want to borrow your tester.
Oh, ye of little faith. Don't believe my two (2) testers within 5lbs of each other, hummmmm?
:twak:

btstarcher 08-06-2013 04:45 PM
Oh I do. But this guy has crazy high numbers, so I wanted to be blessed by his tester.

fivefingerdeathpunch 08-06-2013 04:54 PM
this guy also has crazy flow/power on his k04. borrow his car not the tester ;)

Micha 08-06-2013 05:17 PM
I make 230 PSi on 3 out of 4 cylinders. Am I cool?

btstarcher 08-06-2013 06:06 PM
You're very cool @Micha;! Any ideas what happened with the other one?

himurax13 08-06-2013 06:35 PM
Quote:
Originally Posted by Micha (Post 2198475)
I make 230 PSi on 3 out of 4 cylinders. Am I cool?
Well 75% is a passing grade in college.;)

Sent via blown passenger side speakers.

LatinKraze 08-06-2013 06:39 PM
Quote:
Originally Posted by btstarcher (Post 2197279)
Was the engine at operating temperature? Those numbers look fine; only 2psi difference.
Quote:
Originally Posted by theurgy (Post 2197785)
Yeah I'm thinking your engine wasn't warm enough.
Had 15-20 minutes on the highway right before the test. ECT was normal

Snyeed 08-13-2013 09:30 PM
First compression check ever, 83.xxx miles BT 3071, 415whp 12.0 quarter mile.

165 167 165 167

The car has been running flawless until the last week when there is oil coming out of the valve cover breather. I have a little filter on it that came with my cp-e kit.

Saikou catch can hooked up the old school way with two check valves. I know a leak down test is the next step but in the mean time I am going to go over the catch can and pcv system.

himurax13 08-13-2013 11:40 PM
Quote:
Originally Posted by Snyeed (Post 2210411)
First compression check ever, 83.xxx miles BT 3071, 415whp 12.0 quarter mile.

165 167 165 167

The car has been running flawless until the last week when there is oil coming out of the valve cover breather. I have a little filter on it that came with my cp-e kit.

Saikou catch can hooked up the old school way with two check valves. I know a leak down test is the next step but in the mean time I am going to go over the catch can and pcv system.
Might as well start saving for a rebuild ...

Sent via blown passenger side speakers.

MPS_Fan 08-13-2013 11:47 PM
Quote:
Originally Posted by Snyeed (Post 2210411)
First compression check ever, 83.xxx miles BT 3071, 415whp 12.0 quarter mile.

165 167 165 167

The car has been running flawless until the last week when there is oil coming out of the valve cover breather. I have a little filter on it that came with my cp-e kit.

Saikou catch can hooked up the old school way with two check valves. I know a leak down test is the next step but in the mean time I am going to go over the catch can and pcv system.
How many miles on BT and how much boost?

snailD 08-13-2013 11:54 PM
@Snyeed; was telling me altitude will mess with compression numbers. I looked it up briefly and people seemed to concur. If usual is 180, and we are at 4500ft would that be accurate for a healthy motor?

He runs 25ish, but is on 18psi for the winter months. bt has been in for 2 years?

Mandinca 08-15-2013 05:50 PM
Quote:
Originally Posted by cpolly69 (Post 484954)
aaron - i kinda called this a while back if you remember when i sold you that used k04

btw guys something to keep in mind - if you are leaking compression out of your piston rings or out your valve guide seals - 2 things will be happening

1. your pcv will be even more messed up then normal - compression gases and pressures in places where they shouldn't be screws up the flow of lots of stuff -
a good indication of this (at least with the stock pcv setup) is seeing crud coming back out of the port on the valve cover that leads to your turbo intake -
when my motor was on it's way to death i had lots of crud in this area - at points so bad it was getting on my maf
2. you will be burning oil - i was up to about a quart every 200 miles when i started the battle for a new motor with my dealer - the amount that gets squeezed out via pcv imbalance should be minimal - if you notice more, you've got an issue
the day i actually took my car in i was bellowing smoke

if you have the other leak of compression (head gasket) you will most likely see increased ect - well above 220 - but hell the other things i'm saying here will cause that too
CPolly, had to bump this since I am getting through a qt every 200 miles as well. Are you suggesting that my rings are fucked and the blowby is forcing oil through the pcv into the IM ? Did a compression test and one cylinder was 30psi below the rest. Also, all four plugs were fouled like I've never seen and they were only 30K miles old. Covered in encrusted white deposits. Doing a leakdown test this weekend.

Quote:
Originally Posted by Snyeed (Post 2210411)
First compression check ever, 83.xxx miles BT 3071, 415whp 12.0 quarter mile.

165 167 165 167

The car has been running flawless until the last week when there is oil coming out of the valve cover breather. I have a little filter on it that came with my cp-e kit.

Saikou catch can hooked up the old school way with two check valves. I know a leak down test is the next step but in the mean time I am going to go over the catch can and pcv system.
Wouldn't that suggest a blocked PCV system forcing the pressure out through the valve cover ?
The compressions look reasonable....and more importantly, even.

Mandinca 08-15-2013 05:57 PM
Quote:
Originally Posted by WaterlooDrew (Post 1406656)
Thanks man, I didn't think it was that bad. The oil consumption did slow down dramatically after a little more driving with the new PCV....mechanic did say it could take time for the flush chemicals to do their job.

It starts, drives, sounds fine and has good power.
What did you mean by flush chemicals ?

himurax13 08-15-2013 06:01 PM
Quote:
Originally Posted by Mandinca (Post 2213849)
CPolly, had to bump this since I am getting through a qt every 200 miles as well. Are you suggesting that my rings are fucked and the blowby is forcing oil through the pcv into the IM ? Did a compression test and one cylinder was 30psi below the rest. Also, all four plugs were fouled like I've never seen and they were only 30K miles old. Covered in encrusted white deposits. Doing a leakdown test this weekend.



Wouldn't that suggest a blocked PCV system forcing the pressure out through the valve cover ?
The compressions look reasonable....and more importantly, even.
I had 160 PSI accross the board and I was filling my SSP Vented Catch can with 3 WOT Pulls. I had the TIP and the Mani blocked off. Your rings could be fucked or you could have multiple cracked ringlands even though you have good compression. You might as well save for a rebuild because once you have retarded amounts of blowby occurring, that is the only real fix for it.


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