Rudimentary supercharging on old Mercs
Discussion
Quite a few of the (American?) Merc fans seem to do this to old '80s or early '90s 190Es and E-classes. Superchargers are just a few hundred pounds off ebay for ones such as that from a four cylinder Merc Kompressor.
As I understand it, this is what you do: Mount it with a bracket onto the engine, get a pulley made up (attached the main crankshaft pulley??), attach a belt. Then presumably you route air via it, et voila. I think then they tweak a few things... Obviously it would be fairly rudimentary but could it work to give you an extra 30-40 bhp and more torque throughout?
Can it be done that simply? The engines have a moving plate air flow meter - would this alone be enough to pick up the increased air flow and thus inject more fuel?
There's also an EHA which is an electro hydraulic actuator - an ECU controlled thingy attached to the distributor. It is used to richen the mixture when for example on WOT full throttle, or when the engine is cold. It has a mechanical adjustment which I think you can use to richen the mixture up manually - separate to the idle mixture adjustment. Would doing that work in combination with a supercharger?
I know ideally you'd remap on a rolling road but that would probably cost more than the car and they can't be remapped anyway as far as I know. So if possible this rudimentary method makes sense as the engines are so strong they could easily take it, if the engine is damaged a replacement could be found easily, and most importantly it would be a cheap laugh apart from the fuel consumption which would probably suffer!
As I understand it, this is what you do: Mount it with a bracket onto the engine, get a pulley made up (attached the main crankshaft pulley??), attach a belt. Then presumably you route air via it, et voila. I think then they tweak a few things... Obviously it would be fairly rudimentary but could it work to give you an extra 30-40 bhp and more torque throughout?
Can it be done that simply? The engines have a moving plate air flow meter - would this alone be enough to pick up the increased air flow and thus inject more fuel?
There's also an EHA which is an electro hydraulic actuator - an ECU controlled thingy attached to the distributor. It is used to richen the mixture when for example on WOT full throttle, or when the engine is cold. It has a mechanical adjustment which I think you can use to richen the mixture up manually - separate to the idle mixture adjustment. Would doing that work in combination with a supercharger?
I know ideally you'd remap on a rolling road but that would probably cost more than the car and they can't be remapped anyway as far as I know. So if possible this rudimentary method makes sense as the engines are so strong they could easily take it, if the engine is damaged a replacement could be found easily, and most importantly it would be a cheap laugh apart from the fuel consumption which would probably suffer!
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