I definitely think that a Del Sol vtec would beat you. Basically, a car that weighs 400-600lbs less than you with a Civic SI engine. The Civic SI ran 1/4 miles in 15.5-16.0 seconds I believe. The Del Sol is lighter so it should be a little bit faster than that. The fastest Zetec tour I have seen ran a 16.5. If it is not a vtec then you may have a closer race, but he still has a weight advantage. Of course, these are all numbers games, and either of you could get a better/worse launch, etc
EDIT: I am talking about the DOHC vtec that is in the Civic SI. I believe (infurym may know) that there is a SOHC vtec that was in the Del Sol SI I believe.