I destroyed my 2.5L last weekend at around 30psi on a 6266 and E85. I have a spare 2.7L ETA from an 87 325e that I plan on swapping in and using the 885 head for the time being, until I build a forged engine
My question for you guys: Is the strength of the 2.7L engine any different from the 2.5? Is it a problem for this engine to rev to 6800rpm with boost? I know the compression ratio differences which will be lower then my 2.5. I've read that the 2.5 is actually a better bottom end because of its ability to rev higher, but that just doesn't make much sense to me seeing as the only difference in the bottom end is the stroke. The head is what I believed to be the limiting factor on Revs.
I know the limits of the 2.5L block now, but have no idea on the 2.7L. Can someone tell me if I can expect the same results out of this motor combo?
My question for you guys: Is the strength of the 2.7L engine any different from the 2.5? Is it a problem for this engine to rev to 6800rpm with boost? I know the compression ratio differences which will be lower then my 2.5. I've read that the 2.5 is actually a better bottom end because of its ability to rev higher, but that just doesn't make much sense to me seeing as the only difference in the bottom end is the stroke. The head is what I believed to be the limiting factor on Revs.
I know the limits of the 2.5L block now, but have no idea on the 2.7L. Can someone tell me if I can expect the same results out of this motor combo?
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