As you all know, after 1.8/2.0/2.3 blocks has been introduced into the range block 2.5, which is installed on the Mazda MZR (09), ford (09), ford fusion (10) and Mercury Milan (10 ), and remains a big inline-4 engines.
These are your standard specification:
89 mm x 100mm
172hp@6000 rpm and 172 lb-ft@4500 rpm torque
Well with in the case of 2,300, is a pretty gelding standard motor with ITBS, sports exhaust and reproduction are achieved very good records, in fact, here you can see the power curve of a standard 2.5-liter Duratec with ITBS , sports exhaust, reproduction without touching internal parts (supposedly):
-Real Dyno
And here you can see the intertwined curves assuming standard 2.5 engine and a 2.3 standard (this I have no doubt):
http://www.dyno-plot.co.uk/dyno/dynoplot/id=899_578&sort=rec&but_sea=qs&sea_simple=duratec/index.htm
Can be seen as the torque in version 2.5 is constant from 0 rpm, while in version 2.3 is slightly more progressive and as the power increases, the curve is becoming (logically) more pointed, example: http://www.dyno-plot.co.uk/dyno/dyn...lot/id=845_841_840_578_842_899&sort=rec&but_sea=qs&sea_simple=duratec/index.htm
And this is where I come in case, I think the new version (2.5) has made changes the valve lift for improved response in the lower/medium rpm`s, what is there in all this??????
Also say that this engine (as opposed to 2.0/2.3) is reinforced crankshaft and shirts are manufactured from 4340 to avoid friction, so it comes to global effects, a better engine in all respects ?
Another question, if you can get 225cv with the standard engine, how much you could get out without having to build and balance? in versions 2.3, it is advisable to go over 250CV without making those changes, but in this engine? it could go up or touch 260cv unwrought internals? there is a power curve of this engine is these powers?
I find very little info to see if you can lend a hand to me, because what interests me most is to have an engine with a torque curve as flat as possible from 0 to the end of rpm, more important even than the late cv.
That for 280/300cvcv, you can get a version 2.0/2.2/2.3 without problems (well yes, money), but I am interested in the power curve is more full throughout the rpm range, and I'm interested to see the possibilities that this new block 2.5, which look very good.
Thanks in advance
These are your standard specification:
89 mm x 100mm
172hp@6000 rpm and 172 lb-ft@4500 rpm torque
Well with in the case of 2,300, is a pretty gelding standard motor with ITBS, sports exhaust and reproduction are achieved very good records, in fact, here you can see the power curve of a standard 2.5-liter Duratec with ITBS , sports exhaust, reproduction without touching internal parts (supposedly):
-Real Dyno
And here you can see the intertwined curves assuming standard 2.5 engine and a 2.3 standard (this I have no doubt):
http://www.dyno-plot.co.uk/dyno/dynoplot/id=899_578&sort=rec&but_sea=qs&sea_simple=duratec/index.htm
Can be seen as the torque in version 2.5 is constant from 0 rpm, while in version 2.3 is slightly more progressive and as the power increases, the curve is becoming (logically) more pointed, example: http://www.dyno-plot.co.uk/dyno/dyn...lot/id=845_841_840_578_842_899&sort=rec&but_sea=qs&sea_simple=duratec/index.htm
And this is where I come in case, I think the new version (2.5) has made changes the valve lift for improved response in the lower/medium rpm`s, what is there in all this??????
Also say that this engine (as opposed to 2.0/2.3) is reinforced crankshaft and shirts are manufactured from 4340 to avoid friction, so it comes to global effects, a better engine in all respects ?
Another question, if you can get 225cv with the standard engine, how much you could get out without having to build and balance? in versions 2.3, it is advisable to go over 250CV without making those changes, but in this engine? it could go up or touch 260cv unwrought internals? there is a power curve of this engine is these powers?
I find very little info to see if you can lend a hand to me, because what interests me most is to have an engine with a torque curve as flat as possible from 0 to the end of rpm, more important even than the late cv.
That for 280/300cvcv, you can get a version 2.0/2.2/2.3 without problems (well yes, money), but I am interested in the power curve is more full throughout the rpm range, and I'm interested to see the possibilities that this new block 2.5, which look very good.
Thanks in advance
