Idea for map sensor. - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Subzero · 03-31-2016, 01:25 PM

Hey, guys. Just a thought, here. Back in the day, we'd use a "boost blocker" to keep the map sensor from seeing any boost. It made the tuning easier, by keeping the ECU from freaking out.

I've only ever seen them for the 2-bolt map sensors on Hondas and old school Subarus. It was a little metal gizmo with a check valve, about 2in x 1in. I have not seen one in years. I don't even know if they make one to fit the BRZ's style of map sensor.

Just a thought.

go_a_way1 · 03-31-2016, 01:31 PM

Quote:

Originally Posted by Subzero

Hey, guys. Just a thought, here. Back in the day, we'd use a "boost blocker" to keep the map sensor from seeing any boost. It made the tuning easier, by keeping the ECU from freaking out.

I've only ever seen them for the 2-bolt map sensors on Hondas and old school Subarus. It was a little metal gizmo with a check valve, about 2in x 1in. I have not seen one in years. I don't even know if they make one to fit the BRZ's style of map sensor.

Just a thought.

or you know just buy a proper MAP sensor? They are not expensive

Subzero · 03-31-2016, 01:37 PM

These ECUs kind of hate them from what I gather. It was an old trick worth mentioning.

spitfire481 · 03-31-2016, 02:11 PM

I have ran an omni 4 bar past 30psi with no problems on mine. sounds like a tuner problem, not a map sensor problem. my maf maxes out on my setup, my ecu would be going at it blind if the map sensor was being cheated

Subzero · 03-31-2016, 02:12 PM

http://www.treadstoneperformance.com...k+Check+Valves This thing

mrk1 · 03-31-2016, 03:09 PM

No MAP sounds like a terrible idea.

I see a lot of user error with the MAP, not sure why.

empower-auto · 03-31-2016, 03:41 PM

This is some of the dumbest s__t I've read on here since day 1.

Buy a proper MAP sensor. Don't be cheap. Like .. Delicious Tuning gives you an 11psi Bosch sensor for pretty much nothing. If your ECU doesn't "like" the map sensor it's probably because you're a dingus and just tossed a different sensor in without making appropriate adjustments.

FRS Justin · 03-31-2016, 05:50 PM

I guess you could bolt a carburetor on it too................

03-31-2016, 01:25 PM	#1
Subzero Old... Join Date: Feb 2013 Drives: Subaru Location: Invisible Posts: 88 Thanks: 76 Thanked 40 Times in 27 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Idea for map sensor. Hey, guys. Just a thought, here. Back in the day, we'd use a "boost blocker" to keep the map sensor from seeing any boost. It made the tuning easier, by keeping the ECU from freaking out. I've only ever seen them for the 2-bolt map sensors on Hondas and old school Subarus. It was a little metal gizmo with a check valve, about 2in x 1in. I have not seen one in years. I don't even know if they make one to fit the BRZ's style of map sensor. Just a thought. __________________ http://youtu.be/manxPVTLth8

03-31-2016, 01:37 PM	#3
Subzero Old... Join Date: Feb 2013 Drives: Subaru Location: Invisible Posts: 88 Thanks: 76 Thanked 40 Times in 27 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	These ECUs kind of hate them from what I gather. It was an old trick worth mentioning. __________________ http://youtu.be/manxPVTLth8

03-31-2016, 02:11 PM	#4
spitfire481 Senior Member Join Date: Mar 2013 Drives: 2JZ FRS Location: Pure Automotive Performance Posts: 1,378 Thanks: 97 Thanked 1,354 Times in 621 Posts Mentioned: 27 Post(s) Tagged: 2 Thread(s)	I have ran an omni 4 bar past 30psi with no problems on mine. sounds like a tuner problem, not a map sensor problem. my maf maxes out on my setup, my ecu would be going at it blind if the map sensor was being cheated __________________ Pure Automotive Performance MoTeC Build Thread @spitfire481

03-31-2016, 02:12 PM	#5
Subzero Old... Join Date: Feb 2013 Drives: Subaru Location: Invisible Posts: 88 Thanks: 76 Thanked 40 Times in 27 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	http://www.treadstoneperformance.com...k+Check+Valves This thing __________________ http://youtu.be/manxPVTLth8

03-31-2016, 03:09 PM	#6
mrk1 Senior Member Join Date: Mar 2013 Drives: Sterling BRZ Ltd Location: New England Posts: 1,702 Thanks: 403 Thanked 1,389 Times in 671 Posts Mentioned: 20 Post(s) Tagged: 2 Thread(s)	No MAP sounds like a terrible idea. I see a lot of user error with the MAP, not sure why. __________________ The Build Thread GT28RS - eBoost2 - 3.91 Final Drive - Supra LSD

03-31-2016, 03:41 PM	#7
empower-auto Kouki-Monster Join Date: May 2012 Drives: 2013 Scion FR-S Location: Saskatoon, SK Posts: 1,137 Thanks: 11 Thanked 562 Times in 261 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	This is some of the dumbest s__t I've read on here since day 1. Buy a proper MAP sensor. Don't be cheap. Like .. Delicious Tuning gives you an 11psi Bosch sensor for pretty much nothing. If your ECU doesn't "like" the map sensor it's probably because you're a dingus and just tossed a different sensor in without making appropriate adjustments. __________________ Rich Anderson EMPOWER AUTO

03-31-2016, 05:50 PM	#8
FRS Justin Senior Member Join Date: May 2014 Drives: 2013 Asphalt FRS Location: San Antonio Posts: 994 Thanks: 693 Thanked 695 Times in 417 Posts Mentioned: 22 Post(s) Tagged: 1 Thread(s)	I guess you could bolt a carburetor on it too................ __________________ Instagram FT86PROJECT9S Facebook FT86PROJECT9S 710whp

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