The NSX engine was originally similar to V6 used in the 1st gen Legend. In fact, the early NSX test mules used modified Legend V6s without the VTEC enhancements.
Don't count on the IRL engine ever being used in a production car.
I think the best we can expect is the new 3.5 L, DOHC VTEC engine slated for the D-NX. According to Honda, it's tuned to produce 300 HP in the D-NX. With some additional performance tweaking suitable for a sports car and not a sporty sedan, it might see an additional 30-50 or so HP.
A 3.5 L, 350 HP V6 might not be too bad.
-Jim
------------------
1992 NSX Red/Blk 5 spd #0330
1991 NSX Blk/Blk Auto #3070 (Sold)
1974 Vette 454 4 spd Wht/Blk
1976 Honda Accord 5 spd, 3 door Blue/Blue
1977 Honda Accord - Custom - Under Construction
1986 Chevy Suburban
http://homepage.mac.com/jimanders/PhotoAlbum1.html
