Any turbo E36's?

[shaneomac1602]

So I am thinking about trying to free up some horsepower as well as clean up some of my engine bay. So I am thinking about removing some emissions stuff since this is an obd 1 1993 325i m50tu motor. What can I all remove that is not necessary? Is there a forum thread somewhere covering that?

[Earl]

You can remove the charcoal canister. There really isn't much else emissions on an OBD1 e36

[jc43089]

There really isn't much to take off, these engines have no EGR (although a prperly functioning EGR will not hurt power).  No smog pump until obd2.  That is what I love about these engines, there isn't really anything that isn't necessary for simple fuel injection.  No horsepower gains to removing things like charcoal canister, only higher emissions and wasted fuel from evaporating into the atmosphere rather than being caught and burned later.

 

Something you can do is remove the mechanical fan and fan clutch, This can be done safely by swapping the temp switch on the passenger side of the radiator with the part for the same year 318i.  They are about 30$  This frees up some room and lets the engine rev easier.

[shaneomac1602]

I may remove that canister. As of now I already have a mishimoto aluminum radiator, fan delete mod, aluminum water pump and thermostat housing, just bought an electric puller fan, and trying to track down an aluminum coolant reservoir.

[jc43089]

Why?  There is no benefit to removing the charcoal canister.  The fuel tank needs to vent somewhere or it will build pressure or vacuum from heat/cold, driving and using the fuel etc.  The charcoal canister just traps the gasoline fumes so they don't get wasted.

 

Sounds like a nice setup, do you have the Stewart water pump too?

[shaneomac1602]

I thought about removing simply to clean up my engine bay a little bit.

I do not have a stewart pump. As of now a stock one works just fine. I'll worry about spending $200 on that pump when my stock metal propeller one can't keep up