High boost guys - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

2010_camaro · 09-19-2018, 12:41 PM

What MAP and/or ECU you running?
Stock ECU only reads to 21psi and in at 26psi. I want to turn it up more but I'm already flying blind on the tune after 21psi.

*SSE 4 2SS* · 09-19-2018, 12:54 PM

I run the ProEFI 128 ECU and a 5 BAR MAP sensor on a speed density tune.... We've been to 27 psi with plans for 35 psi max....

blake-b · 09-19-2018, 01:56 PM

GM 2.5 BAR Map and stock E38 ECU. 27-28# (based off Eboost2). Tuned with HPT Custom OS. I am not the tuner so my knowledge is very limited.

It isn't the MAP that limits, it is hard coded into the ECU to only read to 255kPa.

JANNETTYRACING · 09-20-2018, 10:32 AM

Quote:

Originally Posted by 2010_camaro

What MAP and/or ECU you running?
Stock ECU only reads to 21psi and in at 26psi. I want to turn it up more but I'm already flying blind on the tune after 21psi.

I use stock ECU with MAF sensor running 25 psi, the Map sensor reads up to 255 Kpa/22.8 psi, but has no effect on the ability to tune the fueling via the MAF.

If you are speed density I think there is an option for a true 3 bar speed density custom operating system but not sure on that.

Or you can install a MAF in Blow through Like I run.

Ted.

stevieturbo · 09-20-2018, 04:20 PM

The map sensor only provides a 0-5v input....So you could tune with any map sensor even with the limited software, if you're happy for the table numbering to be incorrect.

09-19-2018, 12:41 PM	#1
2010_camaro Drives: 2014 Camaro SS Join Date: May 2011 Location: Florence, KY Posts: 2,238 View My Garage	High boost guys What MAP and/or ECU you running? Stock ECU only reads to 21psi and in at 26psi. I want to turn it up more but I'm already flying blind on the tune after 21psi. __________________ MODS 6.0 forged iron block, TH400, B&M shifter, DSS axles & driveshaft, Viking / BMR suspension, Full custom fuel system with cell, Twin 76mm teriyaki tornados on 24lbs. https://www.instagram.com/whoopa_ss/

09-19-2018, 12:54 PM	#2
SSE 4 2SS Boosted Moderator Drives: Bone Stock LS3 Join Date: Sep 2009 Location: Marion Tx Posts: 15,484	I run the ProEFI 128 ECU and a 5 BAR MAP sensor on a speed density tune.... We've been to 27 psi with plans for 35 psi max.... __________________ If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough...

09-19-2018, 01:56 PM	#3
blake-b Drives: 2009 ZR1 Join Date: May 2010 Location: KCMO Posts: 3,205	GM 2.5 BAR Map and stock E38 ECU. 27-28# (based off Eboost2). Tuned with HPT Custom OS. I am not the tuner so my knowledge is very limited. It isn't the MAP that limits, it is hard coded into the ECU to only read to 255kPa.

09-20-2018, 04:20 PM	#5
stevieturbo Drives: it changes Join Date: Nov 2010 Location: Norn Iron Posts: 1,126	The map sensor only provides a 0-5v input....So you could tune with any map sensor even with the limited software, if you're happy for the table numbering to be incorrect.