Marc Levy wrote: >Most of the gain (I think) from the DMCH setup comes >from the free-flow exhaust. > That's selling it a bit short. The gains achieved require the exhaust but come mostly from porting, polishing and high lift cams. >BTW, I came to the same conclusion as you. "it'd >actually be cheaper to do an engine swap with a more >easily turbo'd engine than it would be to build and >turbo a PRV that could crank out much more than 210hp >or so". Martin has the luxury of going to junkyards >and pulling bits from various high-performance PRV >setups. > Cor, it's easy to say that, isn't it?! There are very few "high performance PRV's" and those that exist are like hen's teeth and not readily found in scrapyards! Even the old B28 engines are getting rare. The modern (up to 97) 3 litre 12v lumps are quite common, but they're only 167hp, but seriously torquey. The Citroen ones are something I haven't investigated but by all accounts are identical but run higher compression pocketed pistons. The bugger is always the ECU. Renault used a non-standard 66/3 trigger pattern and to make it doubly annoying, all the 3 litre cars in this country are autos and the trigger comes off the flywheel meaning you need the bellhousing and a manual flywheel to use the stock ECU. The manual EFI cars are rare or have the trigger sensor in a diffrent place to those on the turbo cars. The turbo engines and gearboxes are -very- rare and are worth a lot, going for over $1000 typically. AND you still can't just put it in a D for a lot of really annoying reasons (exhaust pipework doesn't fit, turbo 1/2" too far forward etc). I've come up with a "recipe" for a 3 litre turbo but it'll take time and quite a bit of money to build it. Is it easier to just fit another engine? It's swings and roundabouts. At least with a PRV, you know it'll fit in the hole and bolt to the gearbox. Andy C is doing a 4 cylinder Cosworth and is having a nightmare with the bellhousing and clutch setup, not to mention the need for a dry sump setup and where on earth to put the intercooler. At least the engine and ECU is all self-contained though. http://www.deloreans.co.uk/gallery/memberspages/acarvosso/acarvosso.html In the meantime, we've developed our own Stage I & II which uses our free-flow de-catted exhaust, different igniton, different (no lambda) fuelling, better intake tract, higher compresison pistons, and high lift cams. Not actually all that expensive if you can do the work yourself. When you can spin the wheels on a dry road, you start to realise the potential of the D as a really fun car. Martin DMC Ltd www.delorean.co.uk To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/