coffeegoat
Adventurer
I haven't been on the boards as much recently due to my recently arrived new daughter (born December 1st), however, sitting in a hospital for hours on end with very little sleep usually means I spool my mind up on a generally useless engineering problem which can be investigated via the interwebs on my phone... This time around it was how to add HP/torque to my montero and I think I actually have something and wanted to run it by the group.
The montero engines are underpowered, but most would say overbuilt, which means forced induction is a pretty good plan. Turbo integrations have been done, but on the 3.5 and 3.8 engines the orientation of the intake/exhaust makes it a hassle - which leads me to superchargers. It turns out I'm not the only one to think of this - RPW has a kit but the cheap bastard in me says spending double on a supercharger than I spent on the truck is a terrible idea. Digging deeper into the design, they've built it on the Eaton M62 platform, which is cheap and widely available in junkyards in all manner of vehicles and can be purchased for as little as $100. Certainly you'll need other stuff to make the premise work, but here's my plan so far.
I'm reasonable certain that the mechanical aspects of the build won't be too bad, the intake manifold will be tricky to fab, but worst case scenario I may get it 3d printed with Ultem or glass filled nylon like some of the new OEM units. The questionable part is more the fuel management, will the current ECU be able to handle bigger injectors and boost or will I need to pickup/tune a piggyback ECU. Tuning is also questionable as the ECU normally figures stuff out on it's own - will I need to give it a hand to rework it close to ideal or just let it ride.
Anyways, this idea is by no means imminent, I still have to install my bilsteins on the front, pick up/fab skid plates and sliders, add trailer hitch, build roofrack, and all manner of other needs before I start playing with wants, just curious what the group thinks...
The montero engines are underpowered, but most would say overbuilt, which means forced induction is a pretty good plan. Turbo integrations have been done, but on the 3.5 and 3.8 engines the orientation of the intake/exhaust makes it a hassle - which leads me to superchargers. It turns out I'm not the only one to think of this - RPW has a kit but the cheap bastard in me says spending double on a supercharger than I spent on the truck is a terrible idea. Digging deeper into the design, they've built it on the Eaton M62 platform, which is cheap and widely available in junkyards in all manner of vehicles and can be purchased for as little as $100. Certainly you'll need other stuff to make the premise work, but here's my plan so far.
- Pick up a reasonably new Eaton M62 and rebuild kit, perferably mid-late 2000's - Cost <$250
- Pick up some mitsu injectors from an evo/3000gt or similar which are matched to 250hp or so - Cost <$100
- Rework cooling system to use an electric cooling fan - cost ~$250
- Modify/build an intake manifold to mate up to the supercharger/throttle body - cost $300? (looks like lots of the other mitsu intakes would bolt right on)
- Other stuff?
I'm reasonable certain that the mechanical aspects of the build won't be too bad, the intake manifold will be tricky to fab, but worst case scenario I may get it 3d printed with Ultem or glass filled nylon like some of the new OEM units. The questionable part is more the fuel management, will the current ECU be able to handle bigger injectors and boost or will I need to pickup/tune a piggyback ECU. Tuning is also questionable as the ECU normally figures stuff out on it's own - will I need to give it a hand to rework it close to ideal or just let it ride.
Anyways, this idea is by no means imminent, I still have to install my bilsteins on the front, pick up/fab skid plates and sliders, add trailer hitch, build roofrack, and all manner of other needs before I start playing with wants, just curious what the group thinks...
