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Old 02-08-2013, 09:37 PM   #1
Drew's Rex
Scooby Newbie
 
Member#: 151422
Join Date: Jun 2007
Chapter/Region: BAIC
Location: Concord
Vehicle:
2005 Impreza T

Default HELP! Built Hybrid Pulling MAD Timing

I have a Hybrid WRX that's built. However I cannot figure out why it's pulling a -5 degree of timing just more than 20% throttle. I have changed the knock sensor, cleaned the MAF, Idle Air Control Valve, Throttle Position Sensor still no change. I do have a V2 Accessport and I DO NOT have any CELs at all. There are NO vacuum leaks.

The current build and mods on the car are as follows:

Compression Ratio is 8:2:1
OEM STI Head Gaskets

Heads:

Ej205 with CNC Chamber match to 57cc
Brian Crower Springs, retainers, 1mm Oversized Valves and Stage 2 272 cams
Valve Lash set to specific camshaft specs
Bowl Blend, basic PNP

Shortblock:

New EJ257 704 Casting
STI Nitrated Crankshaft 79mm
TriMetal Rod and Main Bearings
Blueprinted and Balanced
Custom JE Pistons 99.5mm 925SD
+2mm HP Long Rods

Mods:

Aeromotive Fuel System Kit (Rails, FPR, SS lines with AN fittings all around)
Aeromotive 340 Fuel Pump
Perrin GT3076 Rotated Turbo Kit
Perrin Blow Through Pipe
Perrin FMIC
Tial Q BOV
PNP Exhaust Manifold with Injen Hi-Flow Crosspipe
Golan Fuel Filter
Grimmspeed Lightweight Crankpulley
Greddy Oil Catch Can
Grimmspeed AOS

What should I look into? Any feedback is appreciated.
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Old 02-08-2013, 10:22 PM   #2
Paul
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Member#: 56203
Join Date: Feb 2004
Chapter/Region: Tri-State
Location: south nj
Vehicle:
00 RSTI Coupe
Twin Scroll 2.5XTR EJ207

Default

Is the car tuned for those mods?
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Old 02-08-2013, 10:54 PM   #3
Drew's Rex
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Member#: 151422
Join Date: Jun 2007
Chapter/Region: BAIC
Location: Concord
Vehicle:
2005 Impreza T

Default

No not yet, I was trying to get it tuned at a local shop.
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Old 02-08-2013, 11:12 PM   #4
Paul
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Member#: 56203
Join Date: Feb 2004
Chapter/Region: Tri-State
Location: south nj
Vehicle:
00 RSTI Coupe
Twin Scroll 2.5XTR EJ207

Default

Thats your problem!! You realize its pulling timing cause of KNOCK?

Dont drive it until you get a e-tune(limp map) so you can drive it to your tuner. If you dont do that you'll be putting a new motor in real soon
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Old 02-08-2013, 11:21 PM   #5
Drew's Rex
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Join Date: Jun 2007
Chapter/Region: BAIC
Location: Concord
Vehicle:
2005 Impreza T

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The car IS at the tuner's shop trying to be tuned. As far as things go, it seems like its false knocking. As there is no knock during idle nor during light driving.
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Old 02-09-2013, 01:28 AM   #6
aboothman
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Member#: 127745
Join Date: Oct 2006
Chapter/Region: NWIC
Location: Humboldt County
Vehicle:
06 WRX 30r 6 speed
99L EJ255 6 Speed

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Bad tank of gas...?

I have been on the dyno with a fresh tank of premium (verified by receipt) just to pull 10+ degrees. 2 days and a couple hundred dollars later everything was fine
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Old 02-09-2013, 02:20 AM   #7
Nuke209
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Member#: 108089
Join Date: Feb 2006
Chapter/Region: MWSOC
Location: Minnesota
Vehicle:
2003 WRX
NF Performance

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position and torque your knock sensor as specified in the manual.
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Old 02-09-2013, 10:40 AM   #8
Drew's Rex
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Member#: 151422
Join Date: Jun 2007
Chapter/Region: BAIC
Location: Concord
Vehicle:
2005 Impreza T

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Quote:
Originally Posted by Nuke209 View Post
position and torque your knock sensor as specified in the manual.
The knock sensor is new and torque/position correctly.
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Old 02-09-2013, 11:36 AM   #9
Paul
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Member#: 56203
Join Date: Feb 2004
Chapter/Region: Tri-State
Location: south nj
Vehicle:
00 RSTI Coupe
Twin Scroll 2.5XTR EJ207

Default

Quote:
Originally Posted by Drew's Rex View Post
The car IS at the tuner's shop trying to be tuned. As far as things go, it seems like its false knocking. As there is no knock during idle nor during light driving.
20% throttle is light driving. What shop do you have tring to tune the car?
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