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Old 11-15-2012, 10:58 PM   #1
Scooby Specialist
Member#: 222879
Join Date: Sep 2009
Chapter/Region: Tri-State
Location: NJ
2003 WRX 60-1/td06h

Default Knock Knock. Whos looking at my timing map? Need opinions

My car is suffering from random moments of knock and its starting to piss me off. Not sure if its my valvetrain or pistons causing this because my head is upgraded and a little on the loose side. I started pulling timing in certain areas because of knock and it made it worse so i returned it to its original settings.

None of the knock is up top. Its all down low in vac or right before the transition into positive pressure with lite throttle. The ecu only registers the low knock in LearningView but it doesn't change the IAM.

I also think i've suck my intake tube shut on more than one occasion above 15

03 wrx

2.5 hybrid built yada yada
Carberry SD
18 and 21 psi
8cm td06h/60-1 2.4 inch compressor housing
approx cr<8.9:1
octane is 93
Ported everthing
tgv deletes etc.
No cat, turbo back
All supporting mods

Open loop only

I'm eager to learn and am getting pretty good at being wrong so please chime in.

(remember what psi absolute is before you make a duh you run 40psi comment)

Last edited by Purpose_Built; 11-15-2012 at 11:07 PM.
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