Good luck in trying to find out the answer...I think it's a "secret" since I wrote a few emails to someone <ehem> and never got any response back. If you do find out...please share with us. For the cost they are charging it sound like they are installing a custom exhaust system, modifying the heads and performing "tweaks" (engine tuning) to other parts of the engine (fuel, air, etc). Custom exhaust alone is expensive, probably cost close to $3,000 or maybe even more depending on what material they are using. You can't bore the cylinder sleeves to a larger Diameter and if they replace the crank than I think the price would be allot higher. IMHO (until someone gives us facts), It's custom exhaust, Mods to the heads (porting, polishing, ect) performance cams and lifters and engine tuning to match the changes. Who knows I could be wrong but doing what I just described will bring the HP up considerably. I believe (from what I heard) that Phase two is suppose to consist of an electronic fuel injection system to replace the mechanical Bosch one. There was a performance engine build shop I used to go to who said that it wouldn't be that difficult to bring the engine up to the 200+HP mark...I have to dig out their number again (and yes they build pro race engine and high performance stock engines...not a fly by night shop). I scraped the idea since I didn't have the money to invest into it and plus I wanted to keep the stock set up for now, that was 3 years ago. Come to think of it I think the owner of the shop owned a Delorean as a "colectors" piece, kept it stock though so it would be original (hence "colectors piece") so I am sure he has thought about it. --- In dmcnews@xxxxxxxxxxx, raddad@xxxx wrote: <SNIP> What I'd like to > hear is just what the modifications consist of, and the offsets to such an > engine "hop-up". > > I have no intention to try a do-it-yourself modification. I'd just like to > know what is involved in the modifications. Obviously, the very > restrictive exhaust is modified. Perhaps the fuel management is modified > ala the approach described on the UK DMC club page. However, they acheive > only 167 HP. So, is the engine ported and relieved? Is there a cam > modification? Or??? > <SNIP>> > James? Stephen? > > Dick Ryan > VIN 16867