Lhemi
Senior Member
- Joined
- May 14, 2013
- Posts
- 3,650
- Reaction score
- 847
- Location
- OKC OK
- Ram Year
- 2014 Predator 4x4 Dually & 2012 Ram Puinsher R/T 1 of 1
- Engine
- 6.7 Cummins Turbo & Hemi 5.7
Magnuson all the way. The only issue that I've seen is that the intercooler is too close to the bottom of the manifold (3/8" clearance) which restricts the air flow and also creates unwanted heat. I know a guy who makes phenolic spacers just for the Hemi/Magnuson combo which come in 1/2" or 1" thicknesses and with all the engine room in a Ram you could also stack them to your desired thickness. These spacers have been proven to drop air temps in the LS world.
As far as a transmission? A stock transmission will hold to around 400 rwhp before you will need an upgrade. A transmission tune? Stay away...far away when boosted. My best luck has been with Superchips and is just used to raise my shift points, rev limit and tire size.
You gonna give up your supplier? That sounds like a pretty useful piece of information.