I can say Honda has probably already done that. There are people that do nothing but drive and blow up cars for research for car companies.. so I'm sure Honda has rev'd the 2.2 to 9k already and blown it up.

 

im too lazy to read through this thread, so some one might/probably have answered that question.
The F22c has a longer stroke, so the piston speeds are higher. this makes it hard for the engine to run higer rpms bc the pistons are moving incredibly fast. high piston speeds are not safe.

 

[QUOTE=STL,Sep 29 2004, 06:24 AM] NOPE, the average piston speed of a S2000 (F20C) works out to be 25.2m/s while in a S2200 (F22C) it is 24.8m/s.

 

No that really doesn't make sense. I think at best you're making a lot of assumptions -- unless you're saying at a given RPM the average piston speed on the F22C is faster. That would be true, but then that's not an apples-to-apples comparision because you're handicapping the F20C. Besides another I4 with a longer stroke and lower redline could make that arguement against the F22C (so it's pointless not to compare max to max).

Here is how I came to my numbers for average pistion speed: (redline rpm) * 1/60 * stroke * 2
That fact the F20C has a higher redline, which is taken into account in my equation, is precisely why it has a faster average piston speed. For the F22C to have a faster instantaneous piston speed but a slower average speed, it would have to have a much, much slower piston acceleration because it has a longer acceleration distance (because of the longer stroke). So it's very likely the F20C also has a faster instantaneous piston speed as well.

 

[QUOTE=STL,Sep 29 2004, 08:46 AM] No that really doesn't make sense.

 

Why not get a Toda stroker kit or something alone those lines and then be able to redline at 9,000RPMs. What do you think?

 

The Toda kit takes an F20C and increases the stroke.

That's a lot different from taking an F22C1 and increasing the redline.

 

I am not the smartest person in the world and my knowledge of engines is limited but I thought the F22C uses the same parts as the F20C. Just is stroked. Isn't the block the same or of simular quality. I thought the heads were the same also. If you could go into detial for me that would be great. Thanks

 

anyone?

 

For one, nobody knows for sure exactly what parts have been changed for the new engine. Somebody with a parts list for both engines needs to compare the two.

Second, we do know for sure that two of the parts were changed - the crank and the connection rods. That's how the increased stroke was achieved.

Third, the Toda stroker kit only contains a crank and rods as well. That stuff is already included in the F22C1 changes. http://www.todaracing.com/products/honda_s...strokerkit.html So doing something with the Toda kit doesn't help us.

Fourth, there is a possibility that the Toda crank and rods in their kit are stronger than the Honda ones in the F22C1, and specifically designed to withstand 9000rpm. (I've heard reports that there are issues, however.) So that might fix one potential issue, but we're still left with the issue of the ECU and the valves...