It will definitely need a Banks turbo. Every 1000ft of elevation you gain you will lose 3% of your power output. So if you go over a 10,000 ft mountain pass you will lose 30% of your power on a naturally aspirated vehicle. In The Andes some of those mountain passes are 16,000 ft, and your 130 hp and 240 ft lbs of torque will feel a lot more like 65hp and 120 ft lbs of torque. If you get the banks Sidewinder Turbo it will help maintain efficiency at high altitudes. You will Be putting out 190 hp and 355 ft lbs of torque no matter what you are altitude at. The turbo will also improve your mpg by about 20%. So, unless you have a turbocharger like your buddy did, you will lose power. You will not even have a chance to pull those high mountain passes with a full load.
You can't just adjust the pump to compensate for a lack of oxygen. To compensate for the thin air you must force air into the cylinders and the only a few ways to do this. Traditionally manufacturers have used a turbocharger or a supercharger to introduce more oxygen into the cylinders. The injection pump only controls the amount of fuel being introduced into the cylinders. To increase output you must increase both the air flow and the fuel delivery. Another way to increase the amount of air being introduced into the cylinders is by adding an intercooler. This cools the hot air that has been compressed by the turbocharger. By cooling the air it becomes more dense and thus more air can enter the cylinder.
Last edited by 4D55 Performance; 06-11-2012 at 03:20 AM.
1985 Mitsubishi Pickup, 2.3 H.O. Turbo Diesel, Watercooled Turbo, ported and polished 4D56 Head with Roller Rockers, Custom '83 Injection pump, JK Rubicon axles w/elockers and disc brakes, 14" Fox Coilovers, Centerforce II, 5.0 Atlas II, ARB Bull Bar, 33x12.50x17 General Grabber Competition tires
2005 GMC Sierra 2500HD 4x4, Duramax, Crew Cab, 6 speed manual
2009 Jetta Sportwagen TDI, 6 speed manual, NAV, PANO, most underated expo vehicle ever........