Quote:
Originally Posted by S2KCRick
Yea that was directed to Turbo, about possibly doing more damage than good.
So what do you think? maybe 25hp at the most for port n polish? im just guessing based what my crx was doing.
|
it depends on soooooooooo many variables its really hard to generalize...
120hp/l naturally aspirated is a still a big deal. it is easier to do on smaller motors of course but the R&D involved in getting a head to flow well enough to support that is very involved.... to improve upon it you need to be able to see where honda had to cut corners for reasons like:
cost
emissions
mass production limitations
drivability
once you know where the engineers wanted to go to make more power but were limited because it wasnt about making the most hp/l but about making a capable 2.0l powerplant for their neat little 2 roadster... then you can make small changes and see what type of gains they net you.
but with that said... now we are talking about a 2.5l motor with a lower redline and larger displacement.
is the stock head still sufficient because of the lower redline?
can we port the head without losing velocity and power?
its just so complicated on a n/a car... FI is always easier and better because the compressed air helps mask inefficiencies by just forcing as much air in the cylinder as possible.