Turbo Time
Now would be the time to flash 2.5 bar os and order the cobalt map sensor. You can ditch the maf and get a su107 thread in temp sensor with a pt307 harness which can be had from your local parts store for 20$
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TECH Enthusiast
Joined: Dec 2012
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From: WEST PALM BEACH FL
What type of benefits will that achieve me? And how much would it set me back? in total
short answer is for turbo cars it gives you the airflow room you need. It allows yor fans to come on sooner and gives you the ability to have boost enrichment etc..all at a cost of 2 more credits.
Copy paste from hptuners.2.5 Bar MAP - Speed Density (E38/E67 ECM)This enhancement contains the following features:
2.5 bar (255 kPa) max MAP sensor support (calibration capability for GM 0-5V linear MAP sensors)
Rescaled High MAF table supports up to 15400 Hz with 300 Hz resolution, also supports airflow up to 1024 g/sec
New VE tables with 33 x 33 cell resolution each and configurable MAP and RPM axes (choose your own resolution)
Charge Temperature based VE multiplier table, configurable axis
TPS based VE multiplier table, 33 x 17 cells with configurable TPS and RPM axes
MAP referenced "Boost Enrich" table
Boost Enrich MAP threshold and hysteresis value
Both MAF and Speed Density mode supported
Boost based fuel cut, selectable MAP threshold cuts fuel to all cylinders when exceeded
Rescaled fan temperature axis 163-250F (73-121C), stock is 192-250F (89-121C)
Copy paste from hptuners.2.5 Bar MAP - Speed Density (E38/E67 ECM)This enhancement contains the following features:
2.5 bar (255 kPa) max MAP sensor support (calibration capability for GM 0-5V linear MAP sensors)
Rescaled High MAF table supports up to 15400 Hz with 300 Hz resolution, also supports airflow up to 1024 g/sec
New VE tables with 33 x 33 cell resolution each and configurable MAP and RPM axes (choose your own resolution)
Charge Temperature based VE multiplier table, configurable axis
TPS based VE multiplier table, 33 x 17 cells with configurable TPS and RPM axes
MAP referenced "Boost Enrich" table
Boost Enrich MAP threshold and hysteresis value
Both MAF and Speed Density mode supported
Boost based fuel cut, selectable MAP threshold cuts fuel to all cylinders when exceeded
Rescaled fan temperature axis 163-250F (73-121C), stock is 192-250F (89-121C)
2 credits on hptuners cost 100$which will give you the os mentioned above. No new pcm required. All this does is re flash. And of course tuning required which you're going to need anyway since you're turbo.. map sensor like 60-70 whatever you're tuner charges for fee
Thread Starter
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From: WEST PALM BEACH FL
Im gonna run that by kevin @ Cartuning he is gonna be doing my base tune to get me running then im going to the dyno i dont need the change o2? for that setup
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From: WEST PALM BEACH FL
Thank you very much your videos where one of the reasons i wanted boost What other mods do u have if u dont mind i ask? Im getting either my wheels widened or some new wheels that are 9.5-10 so i can put some grippers on there and get some good times id be happy anywhere in the 11s