Great article, I actually understood most of it.

The article goes a long way toward explaining the success of the S2000, and why the relative lower HP(240) figure is really meaningless. Now the 10 additional lbs of torque in the 2004 really has peaked my interest.

 

https://www.s2ki.com/forums/showthread.php?...threadid=132538

A comprehensive discussion of these issues has been had many times on this board. The above is just one example. Enjoy!

 

The 2004 certinely will be better from stoplight to stoplight.

But as far as I'm concerned theres alot more to be desired than straightline performance.

 

"newer stroked out version shifting at 8500."


So....Why would a stroked engine have more stress or even equal stress at 8,500 - 8,700 (whatever the new s2k will be) compared to the 2.0L at 9,000. I just don't see why it being stroked makes it have more stress at a lower RPM. Also, I doubt honda just simply stroked it. I do believe that the new S2k will have less stress on the engine.

But anyways, can someone explaine why a stroked engine will have more stress on it at a lower RPM?

Hmmmm.. Maybe for 2004 they will have compleatly fixed any of the possible engine problems that some of the people have been having. (Yes I know off topic, but it would be nice!)

 

what engine problems???

 

I believe it has something to do with the distance from the crank to the top of the piston. The greater the distance, the more problems you need to overcome.

 

A shorter stroke means the motor has less stress on it at any given RPM. I'm not going to get into explaining rod ratio but the key is in rod ratio...look it up.

 

[QUOTE]Originally posted by JsnS2k
[B]So....Why would a stroked engine have more stress or even equal stress at 8,500 - 8,700 (whatever the new s2k will be) compared to the 2.0L at 9,000. I just don't see why it being stroked makes it have more stress at a lower RPM.

 

For details, I posted on "Stroking" on one of the Forums here. As the connecting rod/piston wrist length increases, there is wobble at the top of the piston. The piston speed also increases. It is all explained in that post.

Funny thing is, there are a zillions posts to this thread, and one on the one below - does gossip win over knowledge?

https://www.s2ki.com/forums/showthread.php?...threadid=147434

 

"It's called Physics. To put things very simply, kinetic energy is a measure of the work (W) done by a force (F) moving a mass over a distance (d)...so W = F * d. Increasing the distance, in this case by increasing the stroke, means more work is being done at a lower RPM. More work ultimately means more stress."

Makes perfect since. Thank you.

But, how much of a differance is .2 liters going to make?

So is it only more stress at the lower rpm's? As you stated? Or is it all over the rev range.


Anyways, I do no think them upping it .2 liters will cause any problems...I mean, the NSX did the same thing, 3.0 to a 3.2 L

This car kept the same redline didnt it? I never saw where someone saif the redline would be lowered, other them members of the forum.