I have a ba m11 tyhoon 05 and just wondering what difference has it got to the bf tyhoon other than valve springs wich I already no off.im just concerned weather or not if I should go further with my car and will the bottom end handle the power.

cheers

Don't think there's a great deal of difference between the BA and the BF phoon's engine wise. BF was more of a cosmetic update and the introduction of the ZF auto. Bottom ends are identical.

How many ponies were you aiming for?

The BF engine has Variable cams, not sure if the BA typhoon did? Bottom end wise I think they are the same.

ive currently got 338rwk at 355rwk on the dyno my valve springs couldnt handle it so im thinking of puting some crow springs in and a plazmaman plenum and im hoping for at least 365rwk