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Old 03-19-2015, 12:49 AM   #1
makikogi
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Join Date: Oct 2008
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2012 Impreza WRX
Satin White Pearl

Default sorry another is my compression ok thread

2012 wrx 40k miles

Cyl 1 - 125
Cyl 2 - 135
Cyl 3 - 130
Cyl 4 - 120

Here are my power/ relevant mods:

Cobb DP
AEM CAI
IAG TGV Delete's
3mm phenolic spacer
ID 1000cc
IAG Fuel Rails
Aeromotive Fuel Pressure Regulator
Walbro fuel pump
Fuel lines/fittings
GS EBCS
GS TMIC
IAG AOS
New NGK stock temp laser iridium spark plugs installed prior to compression test/dyno tune

stock VF-52
stock exhaust
stock bpv (GFB BOV was taken off, failed a leak test, but that's in another thread)

everything was pretty much installed by the guys at IAG Performance (although I did the easy stuff, TMIC and intake)

I got a pro tune at IAG, and they did tell me I was dyno'd on the low side considering my mod list and outside temp. They are in the process of updating their software so they have yet to give me a dyno sheet but they said I'm in the 290's whp and 340's lbs/ft.

I definitely was expecting more considering my mod list, and they did say my compression was a bit on the low side which could explain why I didn't see numbers closer to 315-320 whp which is what they said they typically see.

They weren't too concerned (although they did warn me) about my compression levels/differences, and they told to keep on top of my oil levels and one of the guys recommended I switch to Motul to be safe. Should I be saving up for forged internals? I'm currently around 40k miles so they recommended that I stay on top of my oil levels, switch to Motul and come 60k service time do another compression test to see if/how its changed and make a decision about new internals depending on the results. Sounds like a good plan to me, but I'm wondering what the likeliness will be that my engine is on the path of doom.

thanks...
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Old 03-19-2015, 01:20 AM   #2
ALOKIN
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Member#: 348177
Join Date: Feb 2013
Chapter/Region: TXIC
Location: TX
Vehicle:
2013 WRX STI Limited
500whp on teh moonshine

Default

Quote:
Originally Posted by makikogi View Post
2012 wrx 40k miles

Cyl 1 - 125
Cyl 2 - 135
Cyl 3 - 130
Cyl 4 - 120

Here are my power/ relevant mods:

Cobb DP
AEM CAI
IAG TGV Delete's
3mm phenolic spacer
ID 1000cc
IAG Fuel Rails
Aeromotive Fuel Pressure Regulator
Walbro fuel pump
Fuel lines/fittings
GS EBCS
GS TMIC
IAG AOS
New NGK stock temp laser iridium spark plugs installed prior to compression test/dyno tune

stock VF-52
stock exhaust
stock bpv (GFB BOV was taken off, failed a leak test, but that's in another thread)

everything was pretty much installed by the guys at IAG Performance (although I did the easy stuff, TMIC and intake)

I got a pro tune at IAG, and they did tell me I was dyno'd on the low side considering my mod list and outside temp. They are in the process of updating their software so they have yet to give me a dyno sheet but they said I'm in the 290's whp and 340's lbs/ft.

I definitely was expecting more considering my mod list, and they did say my compression was a bit on the low side which could explain why I didn't see numbers closer to 315-320 whp which is what they said they typically see.

They weren't too concerned (although they did warn me) about my compression levels/differences, and they told to keep on top of my oil levels and one of the guys recommended I switch to Motul to be safe. Should I be saving up for forged internals? I'm currently around 40k miles so they recommended that I stay on top of my oil levels, switch to Motul and come 60k service time do another compression test to see if/how its changed and make a decision about new internals depending on the results. Sounds like a good plan to me, but I'm wondering what the likeliness will be that my engine is on the path of doom.

thanks...
nothing in your mod list screams power. Sounds about right for a stage 2 wrx really.
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Old 03-19-2015, 09:42 AM   #3
acumenhokie
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Join Date: Jan 2011
Chapter/Region: MAIC
Location: Talleyville, DE
Vehicle:
2010 LGT (Stg 4)
2009 FXT (Stg 1)

Default

Cobb DP - Adds Power
AEM CAI - Adds very little power
IAG TGV Delete's - Only adds power if your compressor can make use of the extra air
3mm phenolic spacer - Adds very little power
ID 1000cc - Doesn't add power
IAG Fuel Rails - Doesn't add power
Aeromotive Fuel Pressure Regulator - doesn't add power
Walbro fuel pump - doesn't add power
Fuel lines/fittings - doesn't add power
GS EBCS - doesn't add power
GS TMIC - Adds power
IAG AOS - doesn't add power
New NGK stock temp laser iridium spark plugs - doesn't add power
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Old 03-19-2015, 10:29 AM   #4
dark hawk
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Join Date: Jun 2014
Chapter/Region: MWSOC
Location: Cedar Rapids, IA
Vehicle:
2009 wrx Stage I
1982 Mercedes 300d

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YA your power levels are definatly normal for your mods. Should you save for forged internals? I would. 08-14 WRX seems to have shotty engine reliability from what I've seen
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Old 03-19-2015, 01:46 PM   #5
makikogi
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Location: Silver Spring, MD
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2012 Impreza WRX
Satin White Pearl

Default

Quote:
Originally Posted by dark hawk View Post
YA your power levels are definatly normal for your mods. Should you save for forged internals? I would. 08-14 WRX seems to have shotty engine reliability from what I've seen
thanks man, only useful answer I've gotten.

For the others, I listed my list of mods not to complain of my power output but to see if my compression levels were off enough for me to have concerns based on my dyno results. Sorry if I wasn't clear on that. Its certainly not unheard off to see upwards toward 320whp on a stage 2 protune with other supporting mods, and considering I was under the 300 mark I was concerned that my internals are withering away and was wondering if I should in the foreseeable future consider and prepare to save up for forged internals.

also the mention of the my AOS and plugs etc was to provide information to support or deny that my compression levels should be a concern
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Old 03-19-2015, 01:58 PM   #6
MaddMax
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2012 WRX 5dr
Ice Silver

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No, it's really not common to be seeing near 320whp with those mods unless it's an optimistic dyno. 285-305whp and 310-320wtq is pretty normal.

Your compression looks fine. The key is consistency among the cylinders. You've got that. I'd also question the abilities of a tuner if they somehow believe ALL cylinders would be loosing compression at the same rate LOL
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Old 03-19-2015, 02:27 PM   #7
makikogi
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Member#: 192990
Join Date: Oct 2008
Chapter/Region: MAIC
Location: Silver Spring, MD
Vehicle:
2012 Impreza WRX
Satin White Pearl

Default

ok good to hear...I think I was expecting a higher read out considering they tune on a dynojet, also ~315-320whp is what the shop was ball parking.
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Old 03-19-2015, 05:06 PM   #8
ALOKIN
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Member#: 348177
Join Date: Feb 2013
Chapter/Region: TXIC
Location: TX
Vehicle:
2013 WRX STI Limited
500whp on teh moonshine

Default

"stage 2" is more like stage poo.....
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Old 03-19-2015, 05:19 PM   #9
MaddMax
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Ice Silver

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Quote:
Originally Posted by ALOKIN View Post
"stage 2" is more like stage poo.....
For most it's entirely plenty. Not all of us are solely focused on power. If we wanted significantly more power, we'd be looking at cars that have more power from the start
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Old 03-19-2015, 05:23 PM   #10
MaddMax
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2012 WRX 5dr
Ice Silver

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Quote:
Originally Posted by makikogi View Post
ok good to hear...I think I was expecting a higher read out considering they tune on a dynojet, also ~315-320whp is what the shop was ball parking.
Don't worry about the numbers. What you've got is quite healthy and should be relatively safe. You could always tweak the tune to eek more power out of it for bragging rights, but you can really risk longevity doing that because it often means tuning on the ragged edge. It's simply not worth the risk for an extra 10whp/10wtq. There's damn good reason why OEM and OTS tunes are conservative.
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Old 03-19-2015, 05:35 PM   #11
ALOKIN
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Member#: 348177
Join Date: Feb 2013
Chapter/Region: TXIC
Location: TX
Vehicle:
2013 WRX STI Limited
500whp on teh moonshine

Default

Quote:
Originally Posted by MaddMax View Post
For most it's entirely plenty. Not all of us are solely focused on power. If we wanted significantly more power, we'd be looking at cars that have more power from the start
Youre a size doesnt matter type guy arent you maxxy lololol

OP was geeking out about his power not being in line with his mod list. Id say he cares about power, in which case, stage poo suxs and hes a sad bananna....
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Old 03-19-2015, 06:41 PM   #12
makikogi
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Join Date: Oct 2008
Chapter/Region: MAIC
Location: Silver Spring, MD
Vehicle:
2012 Impreza WRX
Satin White Pearl

Default

ALOKIN, you couldn't be further from the truth, the main point of my initial thread was not griping about how I didn't get to 300+whp. It was compression values and I was fearful that based on my dyno results it might suggest that my engine internals are not healthy. The thread title itself has nothing to do with power, but my compression values. I think I had one sentence about how I dyno'd lower than what I expected, where my expectations were based on what the shop told me I could expect considering my mod list. One sentence speaking on power the rest of the entire post inquiring about the health of my engine and possible solutions to fix any current issues I might have and/or prevent even worse issues down the road.

In response to an earlier thread where someone was trying to educate me in the difference between power mods and other ancillary mods, I am well aware of what does what. I wasn't expecting 10whp from my AOS. AGAIN the reason I included my AOS and other fuel mods in the thread was to express that I did take precautions and safe guards to try and protect my engine from premature issues that might arise. Considering that I've had these installed I found it interesting that the shop would suggest that my compression values are on the low side which caused me concern, which in turn prompted me to create a thread based on that, not because I didn't reach a certain whp.

Again thank you MaddMax for reassuring me that the numbers look fine. I will probably switch to motul oil and more frequently monitor my oil levels to ensure my engine stays healthy.

The entire point of my modding and pro-tuning yes was to get the most out of my mods but more importantly when my tuner asked me what I was trying to achieve with this protune I told him "safety and reliability, max whp is not more important than longevity and reliability"

I can say that my car feels great, boost comes one fast and strong. My IDC values show plenty of headroom and the only initial concern (that was put to rest by MaddMax) was my compression values. Now if people have a list of things that I should consider down to road to keep my engine running happy I'll all ears. For instance what does a typical engine "build" look like (I'm not sure if I am using the right terminology) pistons, rods, bearings, crank, etc?

Last edited by makikogi; 03-19-2015 at 06:46 PM.
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Old 03-19-2015, 06:41 PM   #13
secondchance
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290 WHP AND 340 T? must be a dynojet lmao. no where youre anywher near those numbers on a properly calibrated non dynojet dyno on stock exhaust.
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Old 03-19-2015, 10:02 PM   #14
makikogi
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Join Date: Oct 2008
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Location: Silver Spring, MD
Vehicle:
2012 Impreza WRX
Satin White Pearl

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?? aftermarket CBE hardly make any power. Where are you getting your sources from?
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