Is MAP sensor 3bar necessary? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

tomm.brz · 06-17-2018, 02:19 PM

So for a car with Hks supercharger v2 with 38mm restrictor... With stock MAP sensor logged value of MAP is course capped at 1.37bar. Car is already mapped by a Tuner so it is going good but what are the benefits of putting a 3bar MAP sensor now?
Just a pretty looking logged value or does it actually give some benefits like better compensations while driving on different altitudes?

Kodename47 · 06-18-2018, 04:49 AM

Quote:

Originally Posted by tomm.brz

So for a car with Hks supercharger v2 with 38mm restrictor... With stock MAP sensor logged value of MAP is course capped at 1.37bar. Car is already mapped by a Tuner so it is going good but what are the benefits of putting a 3bar MAP sensor now?
Just a pretty looking logged value or does it actually give some benefits like better compensations while driving on different altitudes?

For the average tuner I would expect no benefit of a wider range sensor. It does have some input to the fueling calculations but not in a detrimental way if you don't change it. Your tuner could add some form of MAP compensation table, but whether it would be noticeable/useful...... or just a "nice to have."

You'd obviously have to have the tune changed to reflect the change in sensor.

tomm.brz · 06-18-2018, 04:54 AM

the car is of a friend, and it s driving good of course
Are there built in MAP compensation tables in the rom? (za1ja02g)
if so how are they called cause i do not find them

we do not see any form of map compensation in custom maps (it s an ecutek tune)

Ok so for the not so heavy boost this kit gives (i guest somewhere near 8 psi?) it s not fundamental, would just be nice to see the actual boost gain

06-17-2018, 02:19 PM	#1
tomm.brz Senior Member Join Date: Jan 2017 Drives: brz 2017 hksv2 Location: italy Posts: 2,196 Thanks: 500 Thanked 1,066 Times in 775 Posts Mentioned: 65 Post(s) Tagged: 0 Thread(s)	Is MAP sensor 3bar necessary? So for a car with Hks supercharger v2 with 38mm restrictor... With stock MAP sensor logged value of MAP is course capped at 1.37bar. Car is already mapped by a Tuner so it is going good but what are the benefits of putting a 3bar MAP sensor now? Just a pretty looking logged value or does it actually give some benefits like better compensations while driving on different altitudes?

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06-18-2018, 04:54 AM	#3
tomm.brz Senior Member Join Date: Jan 2017 Drives: brz 2017 hksv2 Location: italy Posts: 2,196 Thanks: 500 Thanked 1,066 Times in 775 Posts Mentioned: 65 Post(s) Tagged: 0 Thread(s)	the car is of a friend, and it s driving good of course Are there built in MAP compensation tables in the rom? (za1ja02g) if so how are they called cause i do not find them we do not see any form of map compensation in custom maps (it s an ecutek tune) Ok so for the not so heavy boost this kit gives (i guest somewhere near 8 psi?) it s not fundamental, would just be nice to see the actual boost gain

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