Re: EMC 289
Posted: Sun Oct 13, 2019 9:45 pm
Bill I'm very impressed with the hp of these small engines. With the weight of one of these power plants and in a 2+2 chassis or falcon these cars would be very tough to beat. Not to mention cobra or sunbeam tiger. Wow.BILL-C wrote: ↑Thu Oct 10, 2019 11:19 pmThe FIA european spec 289's that we build will typically have either production 289 head castings or the better C6FE heads, depending on the chassis engine is going into. We run 11.25 CR compared to EMC max of 10.5. FIA mandates correct vintage heads and blocks, flat tappet cam and lifters,stock type rockers-- NO ROLLERS ALLOWED!The only intakes allowed are the stock Shelby's,performer rpm,or webbers. Obviously, this makes it tougher to make reliable power. Typical output is 380 tq and 450 hp with production passenger car heads and 20+ more with the GT-40 C6FE heads. In USA 289 engines we are allowed to use the better 351W and C6FE heads and high compression ratio.500+ hp common. Some sanctioning bodies like SVRA allow aftermarket iron heads and roller valvetrains.580+ hp achieved with proper budget B production 289's .Performer RPM intake still required.T/A 310 cid versions 600+ with dual plane, 620+ with Vic Jr. Because of the way the rules are written, we never build any 289's with C5AE production heads and roller valvetrains. If we did, power in the 500 neighborhood is possible. Peak hp would occur at a higher rpm than scored by EMC though.hoffman900 wrote: ↑Thu Oct 10, 2019 10:59 am Bill-C,
How does this engine compare to the road race engines you build with these heads?