Originally Posted by 240M3SRT
Im not the slightest bit worried about the internals at this point. Stock honda civics can put 350 to the wheels on stock internals without exploding, srt-4's can do 400+, so im pretty sure these motors can handle 425-450 before you even remotely have to start worrying. Id say the single most important factor like any modded forced induction car...is the tune.
I too am curious how much further we can push the s/c, and still keep it reliable for us daily drivers.
I split the stock block on a 5.0L mustang with 450 at the rear wheels (lotsa boost
). I know the 5.0L block is good up to about 500 at the flywheel, then you start 'risking' it.
I don't think I have heard of any major internal failures on any of the modded C32's and SLK32's, let alone the SRT...but then again I haven't seen anyone running a lot of power through them either.
After looking at the rear axle on these things, that would be my first concern. It is tiny!
SQ