Originally Posted by DKDunn
So what internals would you need to upgrade in order to supercharge it?
they can be found at airramperformance.com. they are listed under 4.7, but they will fit the 3.7. the rods are a hair longer then oem so you will need to lower the CR using pistons that have lower CR. (compression ratio). New bearings I definitely recommend. One detail that differentiate the 3.7 and 4.7 cranks is that the 3.7 has a slightly longer stroke then a 4.7, thus the need for lower CR pistons.
WeaponX has just recently released a set of stage 2 ignition coils, they claim a 30% increase over stock.
also found at airram, the stinger brand injectors. they have up to 43# injectors. stock on a 3.7 are 21.5#, im running 26# from a mustang cobra. (better spray pattern and better flow up top)
I need to do some more research on what the fuel flow rate is on the factory fuel pump, and see if I can find a suitable one from walboro...
Ah tuning, this is the most difficult part. there is barely and tuning support on the 3.7 and finding a tuner willing to play with the 3.7's NGC ecu is gonna be hard. did some digging around on motec's site for a stand alone, but don't think any thing will work. same for aem. a standalone will need to be can-bus compatible...
Well the 3.7 is paired up with the NAG1/W5A580 from the SRT. it has a different tune then the srt tho. again it comes down to a tuner willing to play with the ecu/tcm. It SHOULD BE capable of handling whatever a boosted 3.7 can throw out. same trans has seen up to 600HP in srt's although some transmissions have died at power levels a little higher then stock in the srt.
If you get all that sorted out, I believe a properly setup and tuned turbo 3.7 could generate 400-550 on 8-12 psi of boost.