OK, heres another idea... technically, my car is already legal for DSP (92-95 sohc vtec...although its a vx, which is kinda an oversight in the classification). Updating/backdating is allowed in SP, as is the removal of factory trim/interior/sound deadening. Technically, a d16z6 would comply since my engine configuration according to the rules is the same. Likewise, the advantages of the lighter car would be negated by rules which allow gutting, fuel cells, seat replacement, etc.

I think i can classify myself DSP without breaking any rules... all my upgrades are allowed as far as I can tell. Plus, as usual, they'll be unlikely to raise a fuss since my competition will be a few sponsored bmw's

:edit: I'm going by these rules... I'm pretty sure they're accurate. Classification is also linked somewhere on that site.http://www.moutons.org/sccasolo/Rules/sp.html