[Keithc8]

This challenge is for an average from 2500 to 6500rpms and premium pump gas. These engine will have all sorts of little tricks that your programs do not take in account for. They will use special light cranks and rods, smaller rod journals, lighter pistons, light tension rings. The camshaft would have a more aggressive ramp speeds than what would be run in most cars. The heads will be tweeked to flow very well in the .300 to .600 lift range. The rules also allow these guys to weld in the ports, raise the floors as long as the stock style intake will bolt up which can also be welded in. There will be some different bore stroke combinations played with as well. You will see the winner of this thing make close to 800HP because they will work with the chamber design, quench area and camshaft to get where they can run about 12 to 12.5 to 1 on this fuel. These engine would not be praticle to drive on a daily bases. If you were building a Ford you would probably want to build a 460 style engine anyway.
When you have a 510C.I. engine with about 10.5/10.8 to 1 compression and you use good heads with a good intake and do a solid roller it is not very hard to make 700HP, hell it is a 510C.I. engine.
We take 440C.I. 428CJ Super Stock engines that have to use the stock cast iron heads with the stock runner volumes. We can port the heads but they still have to cc what they came from the factory with. This engines have a small dich with a 68cc head and this give you about 10.8/11.0 at the most. We use a Dove intake, solid roller, light pistons and rings with a T&D rocker system. We turn these engines 8000 rpms and make over 700HP with them. So the y 510C.I. engine is easy.
If you have a engine designed right with the right camshaft, heads and intake you can have a VE of 120 and even better on real nice race engines. The FE engine is now just getting up to speed and close to what these other engines have been doing for a while. Just my two cents worth. Keith Craft