creating a high revving 2.2L
08-17-2004, 10:20 PM
#1
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creating a high revving 2.2L
common gripes against the MY2004 is that it loses the top 1000 or so revs we love
common gripes against the 2.0L engines are that the don't have the torque
my question for discussion is wouldnt a stroked up 2.0--> 2.2L engine have the best of both worlds?
common gripes against the 2.0L engines are that the don't have the torque
my question for discussion is wouldnt a stroked up 2.0--> 2.2L engine have the best of both worlds?
08-18-2004, 06:21 AM
#3
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yes, you can...but there are caveats.
there is really no room to bore the F20C...take a look at the block sans head and you'll see why; the cylinders are so close together.
Now, when you stroke, you are increasing the distance the pistons travel at a given RPM. At 2.2L, the piston speeds at about 8200 are the same as the 2.0L at 9000. Also, remember the F20C has no balance shafts. When you go to 2.2L, the intertia of the internals causes more vibration, which is not good for crank bearings. Honda lowered the redline because they HAD TO in order to meet reliability targets...are you going to listen to them or the armchair powertrain engineers on the net?
Now, you can use a new ECU to move the redline and fuel maps to 9000rpm, but eventually the vibration will take its toll. If you could find some lighter forged titanium internals, you may be able to quell some vibration and up the redline, but I don't think even then you could reliably do 9000 (to Honda's standards anyway).
there is really no room to bore the F20C...take a look at the block sans head and you'll see why; the cylinders are so close together.
Now, when you stroke, you are increasing the distance the pistons travel at a given RPM. At 2.2L, the piston speeds at about 8200 are the same as the 2.0L at 9000. Also, remember the F20C has no balance shafts. When you go to 2.2L, the intertia of the internals causes more vibration, which is not good for crank bearings. Honda lowered the redline because they HAD TO in order to meet reliability targets...are you going to listen to them or the armchair powertrain engineers on the net?
Now, you can use a new ECU to move the redline and fuel maps to 9000rpm, but eventually the vibration will take its toll. If you could find some lighter forged titanium internals, you may be able to quell some vibration and up the redline, but I don't think even then you could reliably do 9000 (to Honda's standards anyway).
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