New supercharger to E500?







How are you addressing timing and fuel? Someone providing you a tune for the Motor Electronics (ME)? If the stock MAP sensor is one bar and you start throwing boost on it, the ME will register a fault and put the car into limp mode so you may have to replace the MAP sensor. Will have to be low boost due to higher compression pistons and stock rods in the original engine. Are you going to use a rising-rate fuel pressure regulator to increase fuel pressure for additional flow if using stock injectors? Or will the tune installed into your ME increase injector pulse duration sufficiently to provide proper fuel mixtures? With increased boost, timing is pulled back to reduce detonation. Again, how are you handling it? Can your fuel pump deliver sufficient fuel to supply the increased need for fuel under boost? Will spark plugs be stock or one heat range cooler? Harmonic balancer replacement to provide an additional drive belt for the supercharger? Etc, etc, etc.
One option I would consider would be to find a lower-mileage W210 E55 M113 normally aspirated engine and swap it for yours. That would provide an additional ~50hp (349 vs 302) and ~60 ft-lbs of torque (400 vs 340) and you should be able to use your stock ME.
Last edited by bbirdwell; Feb 5, 2024 at 11:46 AM.







How are you addressing timing and fuel? Someone providing you a tune for the Motor Electronics (ME)? If the stock MAP sensor is one bar and you start throwing boost on it, the ME will register a fault and put the car into limp mode so you may have to replace the MAP sensor. Will have to be low boost due to higher compression pistons and stock rods in the original engine. Are you going to use a rising-rate fuel pressure regulator to increase fuel pressure for additional flow if using stock injectors? Or will the tune installed into your ME increase injector pulse duration sufficiently to provide proper fuel mixtures? With increased boost, timing is pulled back to reduce detonation. Again, how are you handling it? Can your fuel pump deliver sufficient fuel to supply the increased need for fuel under boost? Will spark plugs be stock or one heat range cooler? Harmonic balancer replacement to provide an additional drive belt for the supercharger? Etc, etc, etc.
One option I would consider would be to find a lower-mileage W210 E55 M113 normally aspirated engine and swap it for yours. That would provide an additional ~50hp (349 vs 302) and ~60 ft-lbs of torque (400 vs 340) and you should be able to use your stock ME.



How are you addressing timing and fuel? Someone providing you a tune for the Motor Electronics (ME)? If the stock MAP sensor is one bar and you start throwing boost on it, the ME will register a fault and put the car into limp mode so you may have to replace the MAP sensor. Will have to be low boost due to higher compression pistons and stock rods in the original engine. Are you going to use a rising-rate fuel pressure regulator to increase fuel pressure for additional flow if using stock injectors? Or will the tune installed into your ME increase injector pulse duration sufficiently to provide proper fuel mixtures? With increased boost, timing is pulled back to reduce detonation. Again, how are you handling it? Can your fuel pump deliver sufficient fuel to supply the increased need for fuel under boost? Will spark plugs be stock or one heat range cooler? Harmonic balancer replacement to provide an additional drive belt for the supercharger? Etc, etc, etc.
One option I would consider would be to find a lower-mileage W210 E55 M113 normally aspirated engine and swap it for yours. That would provide an additional ~50hp (349 vs 302) and ~60 ft-lbs of torque (400 vs 340) and you should be able to use your stock ME.
, idler and serpentine belt because it's hot at Florida!) Ideally he will have a turn-key solution for me...or not. I'll update once I know more. Thanks again!





