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Old 12-12-2020, 09:44 PM   #26
Scargod
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Member#: 260314
Join Date: Oct 2010
Chapter/Region: NESIC
Location: S central CT, New England
Vehicle:
2007 STI
silver gray metallic

Default 2009 Fozzy XT with remote MAP sensor I need to Upgrade

I'm in the weeds with this Fozzy and its "Plastic Fantastic" manifold. I want to make a little over 300 HP with 2014 WRX turbo/intercooler parts. I have ported W25 heads and a built SB.
I have stripped out all the emissions crap and am dieting the harness. I recently realized that the MAP is not on the throttle body!
This thread seems to address many of my concerns but a new one has popped up. Some of the three and four bar MAP's (sometimes with adapters, like the Cobb) can be expensive. I don't see the point in paying $200 for a simple pressure transducer and adapter. It doesn't seem like rocket science and I can fab about anything to adapt a sensor (pressure transducer).
If I'm going to get the Fozzy tuned, is there any reason not to buy almost any three or four BAR sensor?
Any recommendations or issues?
Why would this not work?
Or, even this, for $15!
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Old 12-22-2020, 02:14 PM   #27
spoolinsti05
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Member#: 108051
Join Date: Feb 2006
Chapter/Region: Tri-State
Location: NY
Vehicle:
2005 TickingTimeBomb
Jr tuned TT Sleeved

Default

You absolutely need to filter the line pre sensor. My buddy had same issue. Added a filter and signal smoothed out. The lgt has a filter from factory as it's sensor is external. The sti has a jammed airway to sensor so it's filtered inside the throttle body channel itself. So grab a lgt map sensor filter from dealership or someplace.

Rocket science simplified! Your welcome!

Also wanted to add a hard line would be a good idea along with filter as the sensor is a dead end. And it can swell a silicone hose that's really only meant for vacuum under boost. The map sensor has no bleed off hole. Suppose one would help. Can run it in loop so it's not a vacuum leak also.. like tial should do with there bov and waste gate cough cough. The only boost leak I haven't been able to fix just yet! Lol.

Last edited by spoolinsti05; 12-22-2020 at 06:03 PM.
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Old 12-22-2020, 03:17 PM   #28
Hyper
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Location: MOCKBA
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1999 WRB GM6
2.34 LR destroker

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GM map sensors is what we have used on plenty of rally/time attack cars here with good results

I'd never put on on my street car though because of my OCD
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Old 12-23-2020, 12:05 AM   #29
panel
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Location: Victoria , B.C. Canada
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1965 Vw panel bus
with an EJ20 Turbo Swap

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I know this post is old but the current thread is still alive.


Can someone tell me where you can buy one of these or what they look like ? What year Legacy GT ?



Quote:
Originally Posted by spoolinsti05 View Post
Add a filter like one found on the legacy gt boom there's your smoothing!
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Old 12-23-2020, 12:24 AM   #30
spoolinsti05
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2005 TickingTimeBomb
Jr tuned TT Sleeved

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Quote:
Originally Posted by panel View Post
I know this post is old but the current thread is still alive.


Can someone tell me where you can buy one of these or what they look like ? What year Legacy GT ?
22663AA010 should be what you're looking for.
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Old 12-23-2020, 10:52 PM   #31
panel
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Location: Victoria , B.C. Canada
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1965 Vw panel bus
with an EJ20 Turbo Swap

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Quote:
Originally Posted by spoolinsti05 View Post
22663AA010 should be what you're looking for.

Thx
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