Going Stage 2 in the spring! Questions - Subaru WRX Forum
 
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#1 Old 02-14-2012, 09:19 AM
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Going Stage 2 in the spring! Questions

Hey all so right now I'm sporting the 2012 wrx limitied w/ AEM CAI and Cobb AP. Just got an electronic AEM Boost gauge installed and once spring hit's I'll be doing the Cobb catd DP and a catback (probably invidia single exit). When I do that I'll likely be putting on the Cobb AP map for 2012 Stage 2 + AEM CAI. My only question is while reading their notes on the map i saw this:

Stage2+Intake 93 MTv310 - Intended for 2012 Subaru Impreza WRX vehicles with AEM Cold Air Cold Air Intake System, and a turbo-back exhaust system with high-flow catalytic converter. 93 or 94 octane fuels. Boost Targets: ~18.5psi peak boost pressure tapering down to ~13.5psi by the 7000 RPM redline, +/- 1psi.

My question is, and i could be wrong, but I heard a few ppl at random on the boards saying over 18 psi on the stock TMIC is bad news... should I be worried about this? Cobb doesn't mention anything of the sort and goes on to say that any other modifications could have an adverse effect on performance.... I'm assuming they mean like un-tuned for injectors, EBCS, headers, etc and not a better TMIC. But I wanted to get some advice. What do you guys think?

Thank you for any/all help,
Thepants
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#2 Old 02-15-2012, 09:49 AM
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........errr in summary. Is the stock TMIC on an 08+ wrx safely able to hold 18.5 psi?
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#3 Old 02-15-2012, 10:12 AM
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#4 Old 02-15-2012, 10:49 AM
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Thank you!
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#5 Old 02-15-2012, 05:01 PM
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Does it still have the crappy plastic end tanks and is the BPV still plastic? Like most of the 08+ MYs...If so thats where some people have said around 18 psi or over the plastic end tanks and BPV have cracked.

Kirt
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#6 Old 02-16-2012, 07:28 AM
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I'll have to take a picture but I think that may be the case off the top of my head.
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#7 Old 02-16-2012, 08:42 AM
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Just do a boost leak test... If the tanks are bad it'll creep through.

Paul
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#8 Old 02-16-2012, 03:05 PM
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I'm know I'm about to let my ignorance show but............. in order to do a boost leak test I would need to

1. remove the turbo inlet
2. Attach boost leak tester with gauge and nipple for air compressor
3. Attach air compressor and turn it on to 19 psi and see if it hits that on the gauge

?????

Just a heads up i don't have any of those tools yet :-/ but obviously I'll need to get them. Same with me needing a creeper, jack, jack stands and etc. My tools are lacking (and that's being generous lol)
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#9 Old 02-17-2012, 05:34 AM
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On the older WRX's you could just attach the tester to the throttle body and it'll chk the front of the system... Then turn it around and attach it to the tmic to chk the rest.

Not sure on the newer models. Someone will chime in.

Bump.

Paul
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#10 Old 02-17-2012, 10:55 AM
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Just pull the intake, not the inlet and do it on the inlet.

Scott-2011 WRX 335HP 394TQ 93 VF52!
http://www.wrxtuners.com/forums/f121/2011-wrx-build-31226/
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#11 Old 02-20-2012, 03:01 PM
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kk will do. Do you guys recommend buying a boost tester or a DIY version?
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#12 Old 02-22-2012, 05:44 AM
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If you're inclined, make one... a little time consuming but worth it. If not, order one... I think they were ~$35 shipped

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