M50 3.0L Stroker insight?

[Jib05]

How is the m50b30 compared to stock m50b25?
Is it worth it?

not sure what you mean? They fit without any modifications. Although the piston sits 2mm below deck.

What kind of gains did you guys receive from this set-up?

Havent dyno'd yet but what he said^

[digger]

should make similar numbers to the S50 with the same cams, tune etc but you wouldnt want the piston to sit 2mm lower if true as this would be crap for compression and mixture motion

[Paradox]

It's true, the piston actually sits 1.8mm below the deck. Squish isn't optimum but compression is still around 10:1 with a stock head gasket.

[digger]

It's true, the piston actually sits 1.8mm below the deck. Squish isn't optimum but compression is still around 10:1 with a stock head gasket.

anyone taken a little extra from the block or gone for a thinner gasket? that is what id be looking at to reap the true benefits as long as there are no interface issues. the numbers you quoted above are low even for a mustang and this is probably why

[Paradox]

Actually a stock M54B30 is advertised to make 228 hp at the crank.

I'm not sure if there is an interference issue, but the vanos blocks are have a 210 mm block height and the bi vanos and non vanos engines are 211 mm. The 1 mm difference must be a mass produced manufacturing safety margin built into the design. A person custom building an engine has the luxury of blue printing the engine to make the absolute amount of power by optimizing the measurements. I have read on bimmerforums of members making the same or more power then a S50 with the M54B30 internals, so anything is possible with the right ingredients.

[digger]

Actually a stock M54B30 is advertised to make 228 hp at the crank.

I'm not sure if there is an interference issue, but the vanos blocks are have a 210 mm block height and the bi vanos and non vanos engines are 211 mm. The 1 mm difference must be a mass produced manufacturing safety margin built into the design. A person custom building an engine has the luxury of blue printing the engine to make the absolute amount of power by optimizing the measurements. I have read on bimmerforums of members making the same or more power then a S50 with the M54B30 internals, so anything is possible with the right ingredients.

was more looking at the torque....and comparing to a stock S50B30.

[Jib05]

The valve relief on the piston are really small compared to m50. I'm not sure how to measure weather the valves and piston would kiss. Hence why I'm hesitant on doing the cams

[digger]

The valve relief on the piston are really small compared to m50. I'm not sure how to measure weather the valves and piston would kiss. Hence why I'm hesitant on doing the cams

surely not that hard to increase the depth while it is apart? you'll want to upgrade cams at some point it is a natural evolution of modding an engine

[Jib05]

surely not that hard to increase the depth while it is apart? you'll want to upgrade cams at some point it is a natural evolution of modding an engine

Unfortunately rebuilding the engine is as far as my own personal knowledge (and wallet) took me during my summer break. I'm sure I could do once I've finished studying. :D
Ill get cams after I sort my bushes and ecu.
But if it wasn't my daily I wouldn't have put factory pistons and conrods. Would have aftermarket custom pistons.

Oh to be an apprentice.