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Old 03-05-2012, 12:24 AM   #1
teddyj
Scooby Newbie
 
Member#: 121796
Join Date: Aug 2006
Chapter/Region: MAIC
Location: Huntington, WV
Vehicle:
2005 Blue WRX Sedan
In Subaru I Trust!

Default Please Help

I just upgraded to a new 2.5 short block.

I am 186 miles into "breaking" in the motor when a new loud exhaust noise is present. I believe the noise is coming from the exhaust manifold, but I am not 100%. Can someone familiar with this noise please help....

The noise is a very loud pudder near the bottom of the engine. My car will drive fine, however the boost is not present (I tried to accelerate past 4,000rpm and the car did not boost as normal - I have a 20g-xt-r - but I only tried to accelerate just twice) Would someone be able to help by hearing the phone? If so, please PM me.

The engine:
2.5 w/ 20g-xt-r Blouch turbo
Pro tune

Exhause:
Stock 2.5 inch

I do appreciate the help.
Ted
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Old 03-05-2012, 12:34 AM   #2
mlitz
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Member#: 293571
Join Date: Sep 2011
Chapter/Region: NWIC
Location: Vancouver
Vehicle:
1997 Legacy GT
Murdered

Default

Have you jacked the car up while it was running to see where the noise was coming from?
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Old 03-05-2012, 12:45 AM   #3
binjoau
Scooby Specialist
 
Member#: 259948
Join Date: Oct 2010
Chapter/Region: W. Canada
Location: Regina, Canada
Vehicle:
MPS 510 whp GTX35R
Long Rod Motor

Default

Check the uppipe, first place I would look if your not building boost
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Old 03-05-2012, 01:58 AM   #4
teddyj
Scooby Newbie
 
Member#: 121796
Join Date: Aug 2006
Chapter/Region: MAIC
Location: Huntington, WV
Vehicle:
2005 Blue WRX Sedan
In Subaru I Trust!

Default

Quote:
Originally Posted by mlitz View Post
Have you jacked the car up while it was running to see where the noise was coming from?
I am unable to jack the car, in the middle of a move. Very frustrated.

Quote:
Originally Posted by binjoau View Post
Check the uppipe, first place I would look if your not building boost
That is my guess as well, I will get a better look tomorrow.
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Old 03-05-2012, 02:00 AM   #5
teddyj
Scooby Newbie
 
Member#: 121796
Join Date: Aug 2006
Chapter/Region: MAIC
Location: Huntington, WV
Vehicle:
2005 Blue WRX Sedan
In Subaru I Trust!

Default

If it is just a loose uppipe .... should I be concerned about driving the car?(other than the pipe being loose) Specifically, if I stay below boost?

Last edited by teddyj; 03-05-2012 at 02:10 AM.
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