Sorry. I am missing something obvious. I don't understand the question, let alone what answer it is you're looking for.
In such cases I tend toward the pedantic and therefore maybe miss the larger sense of what is...well.... missing.
'Why would this be the case?':hmm:
Because the rev profile accentuates, improves, focuses on the upper rpm band, the torque does the same for the lower.
Having a rev profile pipe on by nature means you
don't have a torque pipe on (unless we're talking about a Banshee or some other twin cylinder engine)!
Being limited to one type of pipe at a time, if you are using a rev you benefit from where it works best but you DON'T benefit from where the torque works the best...because you
don't have the torque pipe on!
So, using the rev pipe you lose the bottom to mid that the torque pipe will give you
if you DID have the torque pipe on.
For the more deeply thinking and to intercept the sure to come next question....using the torque pipe means you will lose the top end that the rev pipe will give you
because you don't have the rev pipe on!
'Can you get me 1000hp out of a liter engine?'
Yes!
'Can I run it on 89 octane fuel and use it to pull a 5 bottom plow?'
No.
'Why?'
THAT answer will be left for another chapter.
