Yes, all engine does that.

 

halfway through this video, the engine appears to move laterally as i said.

http://www.motortrend.com/av/roadtests/112..._best_handling/

 

This is your first car right? You should see my Camaro. LOL. At 5k RPM, the whole car shakes.

 

no, i've had a 1987 plymouth reliant k-car, a 1995 nissan altima, a 2004 RSX, and a 2005 TSX before this car. i don't remember feeling the engine movement through the steering wheel on any of those cars, but then again, they're all a bit more detached from the road than the S2000.

 

When you start the car does it sometimes feel as if the engine is jumping of it's mounts?

 

As everyone has said definitely check the motor mounts. As I don't have one of these cars (yet ) I'm unsure where they are, but they should be near the bottom center of each side of the engine, bolting it to the crossmember. It's either a rectangular slab of rubber or a circle of rubber surrounded in a metal casing around the circumference. If theres a lot of cracking/tearing on either, replace immediately.

 

i mean, it rumbles sorta, and idles at about 2k RPM for a 60 seconds before dropping to 1,500, then around 900 when it's warmed up....is that not normal?

 

it's normal ...

 

I was missing the lower mounts on my B18 civic, but i could NOT feel it move when I revved. I think that could be because I had some serious hasport mounts holding it together everywhere else. I don't think it moved at all when I revved.

Could your mounts be worn out?

 

Look at the MY he has