[drpeckr]

Hello all,

So I'm in the lucky position of being able to upgrade my 2008 E90 335i with the addition of the Pure Stage 2 turbos (hi-flow/2" inlets) as well as inlets/outlets. This will compliment the existing upgrades:

kitty free DP
5" FMIC,
Forge DVs
Cobb charge pipe
Fuel-It Stage 2 LPFP
Cobb AP running an e50 PTF tune.

My issue is this:

It appears from my forum browsing that to get the good power out of the Pure stg2, you need to run 25+psi of boost(looks like the serious power is around 28psi but I don't have LSD so I don't think that's quite necessary just yet). I believe the stock MAP sensor can only report up to like 21-22psi. So I can upgrade the MAP sensor to the 3.5bar but it's my understanding that the Cobb tune can only really address up to 22-23psi? So I believe my options are, add a JB4 and use the Cobb for BEF so I can continue to run e50 (which I really like other than having to mix at the pump), or I could go straight JB4 but I think that still has the limitations on boost due to the Map sensor, or I could go JB4/MHD but I don't have an Android phone..

Can I get some opinions about the pros/cons of these options and/or corrections of my incorrect information if anything above is wrong?

Thanks!

[mojobmw_e90]

U will need more than just turbos and high boost. Issues is fueling on 335.possibly will need a S3 pump with pi to even consider 26+psi

[klipse]

There are super cheap android tablets which can get the job done for MHD. JB4 is a very useful device.

[drpeckr]

Originally Posted by klipse

There are super cheap android tablets which can get the job done for MHD. JB4 is a very useful device.

Thanks for the response, I am leaning towards replacing my PTF/Cobb tune with JB4 and a cheap Android tablet for MHD. I'm still wondering if it's worth it to replace the MAP sensor now or wait until I can upgrade my fuel system since it appears that the Fuel-It Stage 2 LPFP most likely won't support 25psi+.. Without an LSD it's already like driving on ice skates anyways..