Just fyi... ... I can't find a turbo SMALL enough! for a 195.6... :-) I'm sort-of joking... clearly they're out there, but none of the typical jobs used for hotrodding are even close. It's kinda funny, actually. Just googling compressor maps, most people turboing motors start with 100 - 200 hp and want 300, 400, 500, ... I RTFMed over the weekend and made a spreadsheet to do the calculations (I should be working!!) so I can plug in simple what-ifs. The on-paper goal is 200hp. L heads are cheap, and physically the easiest to plumb up. Low compression would be fine, the "intake" flow not such an issue even with boost since total CFM is small. Heat in the head is the worst problem. But it's all on paper now so that doesn't matter, the OHV would be the same except construction, not that it's head cooling is great, it at least has water in it! I figure 4000 rpm max (a given), noticable boost starting at 2000. 200hp with T4 or T5 in an early American would be very, very fun, low chassis stress and still good mileage if you could get the turbo to not work much at highway-OD speed. It might not even break a T-96 too quickly. Turbo needs to be 10 to 22 lbs/min flow, min to max, pressure ratio about 2.0, about 13lbs boost. The smallest that makes any sense is 150hp target (good for the flathead) then it wants 5 - 17 lbs/min, ratio of 1.5, 9 lbs boost. The high boost needed is partly due to hot intake; thermostat temperature! Both motors have in-head "intake". _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list