PF Arcand (3/1/2007)
Ted: Am I correct that the rules as I read them, will require you to get a variance re the 312 crank c/w 292 main journals? I know there is a lot of enthusiasim on the site for the project, which I applaud, however as I see it, the big stumbling block is that many of the competitors will use "aftermarket heads." This fact could unfortunately end up puting the Y-Block near the bottom of the scoring. Assuming that 25 engines satisfactorily finish the test, being 25th won't do our cause for the engine any favours. You mentioned being able to squeeze 1.6 H.P/ inch out of the engine. What about Torque figures? Any comments, anybody?..I covered most of these thoughts in the prior Engine Masters thread. Yes, the rules committee would have to approve the 292 main size on the 312 crankshaft but reading the rules closely, the main size would be allowed. If not approved, then just go to plan B which is to use a 312 block and start from scratch. I mentioned that it would likely take a 1.6 peak HP/inch value to actually win this thing but I also made note that the best I can get out of a normally aspirated Y is actually 1.3 HP/inch. As far as torque goes, camming is the key here and I’ve got some ideas on how to get that torque up high in the lower rpms and keep it there through 6000.
After seeing the number of engines that actually fail to make it through all three pulls, I likely doubt a Y would be at the bottom. Besides, if accepted, this would probably be the only engine with OEM heads which in itself would be a novelty. It would be nice if Dove had their aluminum heads ready but it would need to be available reasonably quick to work the kinks out of it in time for the competition. The key here is if the engine can still make 1.2-1.3 HP/inch values, it might just wake up the aftermarket to making some heads and other performance items for this engine that may never come about otherwise. Even by just showing up the Y can win.
The first order of business is the registration and I’ve yet to hear from the rules committee or find the registration form on the net.

Lorena, Texas (South of Waco)