Turbo to NA conversion
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When we had our turbo replaced a few years back, my mom thought that might be a cheaper thing to do. Just take it off. The conclusion was, if you did it right, you would get a pretty sluggish car. If you messed up, it would be a really sluggish car. One thing to keep in mind, in an engine the intake and exhaust valves are open at the same time for a little amount of time between the exhaust and intake strokes. This allows the last bits of exhaust gas to exit while new fresh charge comes in to replace it. In a turbo charged motor, this overlapping time can be shorter because something is pumping the new charge in and the exhaust out during this time. This requires different camshafts. Now I don't know if Volvo put different camshafts in turbo/nonturbo motors, but my point is there might be a lot of unexpected differences that will ultimately lead to a relatively untuned "de-turbocharged" motor rather than a naturally aspirated motor.
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DJboozeAlot
Volvo 240, 740 & 940
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11-13-2006 06:19 PM