which engine mounts

[gazza]

doing a 325 into a 318 ...the 325 has round mounts and the 318 has a pyramid shape mount but both look like they will fit ....is there any difference can i use either

[eko]

325 ones may be tougher-more torque/stronger mounts?
Only a guess though!

[Brianmoooore]

Use the 325 ones.

[michealewk]

i would use the 325i ones they would be alot tougher if the suit the 4 pot

[jaistanley]

Use the standard ones for the engine.

NVH (noise vibration and harshness) is now the most expensive part of vehicle design. I'm all for modding cars for performance but someone paid a sad case engineer (like me) to calculate the perfect mount (effective spring stiffness and damping loss angle) to prevent vibration and noise whilst not allowing too much movement. Fitting the mount from a different engine car with different mass and moment of inertia is only going to confuse matters and make the car have strange vibrations etc...

Jai

[use 325i ones]

[gazza]

many thanks to you all