I'd like to run both 2 bar MAP as well as LS7 MAF with 4" tube.
OS 12221588
Rather low boost, so MAF scale shoud be...just about sufficient.
And how about P59, if I want to switch to Flex Fuel?
I'd like to run both 2 bar MAP as well as LS7 MAF with 4" tube.
OS 12221588
Rather low boost, so MAF scale shoud be...just about sufficient.
And how about P59, if I want to switch to Flex Fuel?
You can for some operating systems, simply change the MAP Linear/Offset for a 2 Bar MAP, you will see correct map in the scanner however VE tables will still top at 105 KPa.
If you want SD fueling for boost, you need a custom OS for 2/3 Bar with extended VE tables. For a VE table to work properly you need to switch to true SD and that means failing the MAF.
Just change the MAP scalar to match the 2 Bar MAP and tune the MAF curve, no need for a custom OS, many boosted engines are working good on MAF only.
9 sec Montecarlo SS
Yes if you apply a custom OS and want to keep the blended SD/MAF tune you can still do so. You just won't be able to dial the MAF in with the RTT option. But yes the MAF will still operate if you want it to with the custom OS's.
James Short - [email protected]
Located in Central Kentucky
ShorTuning
2020 Camaro 2SS | BTR 230 | GPI CNC Heads | MSD Intake | Rotofab | 2" LT's | Flex Fuel | 638rwhp / 540rwtq
2002 Camaro | LSX 427 | CID LS7's | Twin GT5088's | Haltech Nexus R5 | RPM TH400
The p59 boosted os has a small ve compared to the po1 but if you don't exceed the maf hz cap then you should be just fine using g that for the flex fuel stuff.
If your MAF sensor and the pipe are large enough you can do it if the Hz signal of the MAF isn't maxxed, however you may need to rescale because the PCM still has a 512 g/s airflow limit.
- Upgrade to 2 Bar OS
- Keep the MAF
- Scale MAF/Injectors and tune the MAF curve
- Fail the MAF and tune the VE table
- Re-enable the MAF
This will give you MAF/SD blended fueling with misfire diagnostics and room in the spark table to compensate for different boost levels.
9 sec Montecarlo SS
James Short - [email protected]
Located in Central Kentucky
ShorTuning
2020 Camaro 2SS | BTR 230 | GPI CNC Heads | MSD Intake | Rotofab | 2" LT's | Flex Fuel | 638rwhp / 540rwtq
2002 Camaro | LSX 427 | CID LS7's | Twin GT5088's | Haltech Nexus R5 | RPM TH400