Seriously Worried Now

Post Wed May 25, 2005 8:20 pm

2,693 cc from an 1986 525e is that an M20 engine or just looks like one ?

Someone says its an ETA engine ?? ????

am i just being blonde ?

Post Wed May 25, 2005 8:32 pm

it is an m20 engine - but a 125bhp economy one..

Post Wed May 25, 2005 8:33 pm

That is correct. ETA engine from the factory is all bottom end. I think that it peaks at about 4500rpm and 110bhp (with something like 5000rpm rev limiter). However it has shedloads of torque. It's reputed to drive more like a diesel (only quieter).
Most modders use the 2.7 bottom end with a 2.5 (885 casting) head and suitable pistons/rods for max power. I could be wrong, but I believe that this is the only way to get over 200bhp from a naturally aspirated M20.
HTH
Stuart

Post Wed May 25, 2005 8:34 pm

essbee wrote:I could be wrong, but I believe that this is the only way to get over 200bhp from a naturally aspirated M20.
HTH
Stuart

funny enough....

200bhp from a 2.5 capacity is more than achieveable

Post Wed May 25, 2005 8:37 pm

so its a good lump to have the 2.7 eta ?

Post Wed May 25, 2005 8:47 pm

m1key wrote:so its a good lump to have the 2.7 eta ?

not really - only thing worth having is the crank