SiberianPatrol
23rd November 2015, 02:25 AM
A little background on my setup. In my 99 GU RD28Ti, I have swapped out the standard electronic injector pump for a mechanical one, all injectors are newly rebuilt, and I have a brand new turbo (factory size). EGR is blocked and butterfly removed.
My Problem:
The Patrol is running a bit rich at the moment. I can smell the diesel inside the cabin. While I am pleased with the power I'm getting, the fuel economy is down the drain. Granted, I am in the middle of cold winter (-20C and lower) so it is idling and warming a bit more and most of the driving is in town, but it seems excessive. According to my odometer, I've only gone about 120km and I'm down to almost 1/2 a tank.
My question is this - I have a manual boost controller that I haven't fitted yet. If I fit that and wind a bit more boost, would that give me a cleaner burn and more power output for the amount of fuel that the pump is sending? Would the fuel economy be any better with just doing that on a stock intake, or should I go ahead and wind back the fuel a bit as well?
My hesitation in winding back the fuel is that my idle RPMs are already in the 750-800 range which is normal according to the manual. If I wind the fuel back, won't I also decrease the idle RPMs?
Hope this is clear and someone can point me in the right direction?
My Problem:
The Patrol is running a bit rich at the moment. I can smell the diesel inside the cabin. While I am pleased with the power I'm getting, the fuel economy is down the drain. Granted, I am in the middle of cold winter (-20C and lower) so it is idling and warming a bit more and most of the driving is in town, but it seems excessive. According to my odometer, I've only gone about 120km and I'm down to almost 1/2 a tank.
My question is this - I have a manual boost controller that I haven't fitted yet. If I fit that and wind a bit more boost, would that give me a cleaner burn and more power output for the amount of fuel that the pump is sending? Would the fuel economy be any better with just doing that on a stock intake, or should I go ahead and wind back the fuel a bit as well?
My hesitation in winding back the fuel is that my idle RPMs are already in the 750-800 range which is normal according to the manual. If I wind the fuel back, won't I also decrease the idle RPMs?
Hope this is clear and someone can point me in the right direction?