3 bar MAP does it replace MAF on forged inducted car
12-06-2010, 12:27 AM
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3 bar MAP does it replace MAF on forged inducted car Im building a ls2 forged with a d-1 procharger... what do i need to do.. what sensors do i need to buy ... someone told me get rid of the MAF all together.. when over 550 hp.... and tune it speed density... os.. idk JUst tell me what i need and ill go buy it lol... I believe i need a 3 bar MAP sensor and and speed density sensor thats aftermarket with a aftermarket harness.. and get rid of my MAF sensor.. which has MAF and speed density in the sae unite.. let me know thanks
12-06-2010, 07:55 PM
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It does not replace the MAF per se, it replaces the stock
1-bar MAP sensor which is unable to read boost. The MAP
sensor is the speed density basis (w/ RPM and IAT).
I don't think most belt driven blowers make more than 15PSI
and 15PSI is more than enough for your 550HP (given the
proper supporting mods) so probably a 2-bar would do.
In any case you will also be wanting a custom OS tune
to take advantage of the higher manifold pressure &
sensor.
Take your time and plan it out carefully.
1-bar MAP sensor which is unable to read boost. The MAP
sensor is the speed density basis (w/ RPM and IAT).
I don't think most belt driven blowers make more than 15PSI
and 15PSI is more than enough for your 550HP (given the
proper supporting mods) so probably a 2-bar would do.
In any case you will also be wanting a custom OS tune
to take advantage of the higher manifold pressure &
sensor.
Take your time and plan it out carefully.
12-23-2010, 04:29 AM
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part # for 2-bar sensor is:
12615136
list price is $91.64
but if you know somebody that works at a gm dealership or a garage/shop that has an account with a dealership you can get it for dealer cost which is $57.28
DO NOT goto advance or autozone, they will give you a sensor that is suppose to be a direct interchange for the gm part #. it even looks like the 2-bar, but it will be a 1-bar sensor. I've already been through this, so spend the extra couple of dollars!!!!
12615136
list price is $91.64
but if you know somebody that works at a gm dealership or a garage/shop that has an account with a dealership you can get it for dealer cost which is $57.28
DO NOT goto advance or autozone, they will give you a sensor that is suppose to be a direct interchange for the gm part #. it even looks like the 2-bar, but it will be a 1-bar sensor. I've already been through this, so spend the extra couple of dollars!!!!
