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09-05-2012, 09:17 PM | #1 |
Scooby Newbie
Member#: 253337
Join Date: Jul 2010
Location: Auburn, Ny
Vehicle:2002 WRX PSM |
noob overboost question.
I wasnt reaching target boost on the 93oct v310 stage 2 hwg tune. I was still only hitting 15psi. I have no boost leaks so i read about adjusting the wastegate actuator arm. I gave it a few spins(3-4) and went for a spin. I hit 19psi and instantly backed off. So i changed maps to the 93oct v310 stage 2 map, this time i hit 17.5psi. Now each pull was only in 2nd gear. I know you should do them in 3rd or 4th(I have a 4.11fd trans). But if i am spiking that high in only second gear then i cant imagine what i'll hit with more load. So should i try switching to the lwg map or just try readjusting the wastegate?
Car: 02 wrx Mods: K&N SRI, TurboXS RFL BOV, 3in catless TBE, Autobahn 88 intercooler pipes.
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09-06-2012, 07:52 AM | #2 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
On a side note, the only intakes that are certified as compatible with these OTS maps are the stock and Cobb SF intakes. Using other intakes can potentially cause load errors which can impact fueling and ignition timing. The maps can be re-calibrated for different intakes by a protuner. Bill |
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09-06-2012, 05:03 PM | #3 |
Scooby Newbie
Member#: 253337
Join Date: Jul 2010
Location: Auburn, Ny
Vehicle:2002 WRX PSM |
I know about the intake but this is what was on the car when i purchased it. I also know that i adjusted the wastegate a little too much. My question is more of can I just flash the LWG map and be ok? i got a 1.5psi drop just by switching from the HWG map to the regular stage 2 map. so will the LWG map give me another 1.5 drop? if it did then in third i should be very close to target boost correct?
Excuse me if this is dumb. just checking to see if this theory is correct. Thanks for your help! |
09-06-2012, 05:34 PM | #4 |
Scooby Specialist
Member#: 73884
Join Date: Nov 2004
Chapter/Region:
HIIC
Location: Honolulu
Vehicle:2016 STi Hyper Blue |
You might get boost to a value you are looking for with the LWG map, but since your WG arm is adjusted too tight you might have problems with boost control. It is best to re-adjust the WG arm to lengthen it some (1.5-2 turns maybe) and then run the normal map and see where you are.
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09-07-2012, 10:07 AM | #5 | |
NASIOC Vendor
Member#: 4803
Join Date: Mar 2001
Location: Austin, TX
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Quote:
Bill |
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09-09-2012, 05:12 AM | #6 |
Scooby Newbie
Member#: 253337
Join Date: Jul 2010
Location: Auburn, Ny
Vehicle:2002 WRX PSM |
Well I readjusted the wastegate and with the normal wastegate map I'm seeing 16.5psi so we're close. Maybe another half to 1 full turn and it should be dialed in. Unfortunately I have a dead laptop at the moment so no data logging for me. Car feels good though, pulls smoothing with no surging and boost comes on nice and fast.
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