Originally Posted by
morph
mark, i mentioned this in another post that a standard bottom end was reliable below 18psi but then i was told that this was waffle as psi has nothing to do with it, due to having a modified head, cam, turbo would make that different and that the standard bottom end was good for 240bhp ish.
hi
i do not dispute the fact that a standard bottom can handle the power you have stated but as you have said its at its limit, to go above the 250+ bhp and be reliable you have to change parts
yes a standard bottom end with a modded cam,turbo,head will reach the power but it does this because the modded parts allow more air fuel to flow in (volumetric efficiency ) but that reaches a point where a lower comp setup will allow even more in
mark