exitium

In singapore where i live, the 2.2L s2000 isnt available. however, having a 9k redline is very appealing anyway, so i was wondering, rather than resorting to FI, is it possible to up the cc's of the F20 to get the added power under the curve? it isnt possble for me to get a car for trackday weekends and another for everyday driving.

that'd be brilliant, cause that's what we typically do to B16 and B18 engines here, the optimum being stroking the old DC2 engine up by 200cc's or so, and keeping the higher redline and really making the most of the 98 octane we get at pumps...

steven975

there really isn't any room to bore. if you look between the cylinders with the head removed, you'll see that the cylinder bores are very close...only a few mm.

I think you can only bore a few thousandths, the amount generally done on a rebuild. By boring alone I don't think you'll get much displacement.

Now, on stroking, that'll be where you get your displacement. Can you keep the 9K redline? Yes, of course; you'll have the same ECU. Be advised when stroking, the piston speeds will increase (Piston speeds of a 2.0L at 9000rpm are about the same as the 2.2 at 8200rpm). Honda lowered the redline due to the speeds; they determined that at 9000rpm, the reliability target could not be met.

You can certainly keep the 9000 redline, but that's your choice. Will you listen to the armchair engineers on the net or those from Honda?

Gernby

Toda has a 2.2 or 2.3 kit that maintains the 9K redline.

Elistan

Doesn't Spoon have a 2.2 liter kit also?

xda2000

Is FI kit available in Singapore? supercharger or turbo?

bilkanin

Toda has a 2.2 kit that remains the redline, but keep in mind that this is for race cars, in other words; they don't go for long life reliability and a race team rebuilds their engines a bit more frequently than most people...

steven975

since the S has no balance shafts, 2.2L+9000rpm is going to be hell on the crank bearings. if you increase displacement and want reliability, lower the redline.

AJ PwR

I have been doing some research on the 2.2L kit for the F20C. Reviews from the Japanese tuners, 2.2L @ 9000rpm engine will blow up very easily cuz of the piston speed. They recommend redline it at 8200-8500 the most.

exitium

i get it, the excessive piston speeds are why the 2.5L motor dropped its redline

are stronger crank bearings avalable? is this where the problem lies?

and hmm, does the 2.5 L have different crank bearings that could be used on a stroked 2.2? or were they unchanged due to the lower redline?

good stuff guys, thanks.