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Evo X Performance General discussion for performance topics that are unique to the Evo X. IF THE TOPIC IS COMMON WITH OTHER LANCERS, PLEASE POST IT IN: '08+ Lancer Common.
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Old 05-09-2019, 12:05 PM   #1
xx.vinci.xx91
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Boost Leak

Hey Guys, I have a 2014 EVO MR and I think I may have a boost leak.

When the car got tuned it made 321hp and 353TQ and the tuner told me he couldnt get the car over 27PSI Peak. My numbers seem strange.

since then the car has 50K more miles but recently the car has felt slow so I decided to get on it and take a look at my numbers. It seems like the car is only hitting 22-23lbs. Also I have been losing about 1-1.5qrt per change

What do you guys think and do my original dyno numbers look normal.

Car is FBO, except downpipe since i plan on upgrading the turbo.

MOD List
ETS Intake
ETS Intercooler Pipe Kit
GrimmSpeed
ETS 3.5" Intercooler
Tial BOB
Tomie
ETS HFC (Might Punch it this weekend or just by a test pipe. Im Slightly overfueling 10.6-10.8 AFR so it might be clogged not sure)
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Old 05-10-2019, 12:32 AM   #2
turismolover22
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Quote:
Originally Posted by xx.vinci.xx91 View Post
Hey Guys, I have a 2014 EVO MR and I think I may have a boost leak.

When the car got tuned it made 321hp and 353TQ and the tuner told me he couldnt get the car over 27PSI Peak. My numbers seem strange.

since then the car has 50K more miles but recently the car has felt slow so I decided to get on it and take a look at my numbers. It seems like the car is only hitting 22-23lbs. Also I have been losing about 1-1.5qrt per change

What do you guys think and do my original dyno numbers look normal.

Car is FBO, except downpipe since i plan on upgrading the turbo.

MOD List
ETS Intake
ETS Intercooler Pipe Kit
GrimmSpeed
ETS 3.5" Intercooler
Tial BOB
Tomie
ETS HFC (Might Punch it this weekend or just by a test pipe. Im Slightly overfueling 10.6-10.8 AFR so it might be clogged not sure)
I doubt you clogged the HFC unless you are throwing piles of carbon out your turbo.

Stock turbo doesn't peak much further past 25-28 PSI. Anything over that is a waste anyway, as it just blows thin hot air. It wont do you any favors.

I was under the impression the MR by nature has lower WHP numbers due to drivetrain loss. Also, that 350 TQ is at the max the stock SS-T can handle as well. I don't think you will gain much more than 20-30 HP at best on top of what you have now, if you were to go back again and have the tune touched up.
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Old 05-10-2019, 09:28 PM   #3
Metal_AF
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Quote:
Originally Posted by xx.vinci.xx91 View Post
It seems like the car is only hitting 22-23lbs.
Are you logging this or is this what your boost gauge is reading?
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Old 06-26-2019, 03:33 AM   #4
fyr3
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Build a boost leak tester and check it out
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Old 06-26-2019, 03:34 AM   #5
fyr3
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Theres a ton of tutorials online on how to do it
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Old 06-26-2019, 03:34 AM   #6
fyr3
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Most of them only involve a run to home depot and autozone and of course a compressor (which you could also rent from home depot).
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