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Old 04-18-2013, 09:00 PM   #18
jaxscuby
Sammo Hung
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Member#: 10613
Join Date: Sep 2001
Chapter/Region: South East
Location: S Ga / N Fla / GTMO
Vehicle:
2002 USDM WRX
WRB

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i ran into a similar problem when tuning a 2.0 with 272 cams, 49lb wheel, fmic, 850cc, fp
the usually goodies to support a 49lb turbo.

had to tweak the maf table to get the stumble/hesitation to go away.

which cam sprockets did you use?

but the timing issue is odd. the factory timing for ej257 closer to 20~22
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