katman, i noticed the same thing you did my first session out last weekend (em1 k20r swap)brian g said:
the k is completely different "FEEL" than any b cept for my built b20 i had.
modulation of the throttle is a definate must...you are not experiencing oversteer due to the car's handling. it is because you are on the gas way too hard! a little lift at the point of push and it should rotate like normal (like having a b or a d)
like brian said it is mostly a throttle induced understeer you have....
like derek said you probably need a wider tire (noticed you were on the new azenia's in other post) THIS WILL DEFINATELY cause an understeer problem.
put some R compound tires on there (i run 225 hoosier) and this will help the problem.
i don't know if you watch my videos or not but if you did those were from the second day on track with the new powerplant.
watching saturday vs sundays race is complete NIGHT and DAY difference in the car. I was FAST on sunday and was still getting use to the car on saturdays' race. you can watch sunday as i put cars lentghs on every one but on saturday i could barely keep up with them coming out of the corners....after watching it was because i was modulating better on sunday than saturday. saturday i was still mashing the gas at apex and understeering like a pig ....sunday it was a roll on throttle type of deal.
still need some more seat time with the new power. daily driving it i would think would help me but since it is my track whore that isn't possible.
hope that helps....
hasport and hondata rock by the way....kpro kicks ass!!! mounts from hasport....can't go wrong with them!