I'm a Honda guy (S2000) that's doing some research on building a roadster for tracking (lapping days & instruction use).
I've just started this research project today. The "roller" that I'm looking at first is the Birkin S3. I know nothing about Ford/Cosworth products: totally wet behind the ears.
Before I consider the rear assembly, I'd like to find out what 4 cyl. Duratec options are available as a "drop in" motor. If it can include an engine management system that will also manage future supercharging, that would be ideal.
Not too familiar with dropin setups, but it seems limited. You can buy a 2.3l crate engine from Ford, but it won't have an ECU. Same goes with Cosworth. You can purchase a tuned Cosworth Duratec engine, but its going to be pricey, and I don't think it has an ECU either.
The Cosworth prices make it a too steep ($19,000) for my pocketbook. They also make a quote that I got for the 250 bhp version, with clutch assembly and 6-speed look pretty good.
The FordRacing motor at 170 bhp with a supercharger looks pretty attractive.
