Quote:
Originally Posted by basslover911
Question, what would happen if you completely remove the turbo and remap for the same a/f ratio's...
Do you think you would get the same, or less mpg and why?
Also, what kind of numbers do you get in city driving?
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I haven't tested the car with the turbo system totally removed. I did do some testing with the charge pipes removed so the engine was running N/A but with the turbo still attached. The results were the engine wouldn't run clean anything above 19:1 A/F. This is after remapping. So I gave up on it. So to answer your question it would lose a lot of FE.
Also keep in mind that this engine is not anywhere near stock anymore.
1)I'm running a very low compression around 7.5:1 to help with pumping loses.
2)Thermal-Coated bowl shape pistons. To keep heat from transferring into the piston and the bowl shape to help create swirl and centralize the flame front. To help with the boundary area of the piston.
3)Extremely loose piston to cylinder wall clearance. To help with pumping loses.
4)Large piston ring gaps. To help with pumping loses.
5)Modified combustion chambers for lean burn. To provide a fuel rich area to help ignite the fuel and air.To increase the size of the flame kernel. To accelerate flame speed durning lean burn.
All these modifications work together. If I take anyone of these out of the equation the engine won't perform where its at now. I'm doing a lot of things that are look down on and I feel most people haven't tested yet. So now I have another person testing his own car with the same type build that he did himself. This is the next challenge I have is to duplicate it and hope for the same results.
As for city driving. I haven't a clue. I'm still working on light load freeway driving. I want the car to give the same results no matter who's driving (very user friendly) without the need for Hypermiling.