Quote:
Originally Posted by Obsessed 17
People have modded the mustang to get around 500 crank hp NA so doubt 435 is the limit. Add a supercharger/turbo and easily get 700 crank. Not to mention the engine/trans can handle 700hp with no issues. If the mustang looked better and had a trans like the A8 (or dual clutch) the choice of getting a Camaro would be a lot harder.
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It is one thing to make that kind of power..... it is a completely different thing to make that kind of power while meeting durability, fuel economy, emissions etc......
In other words Ford is probably not going to push their current factory 5.0L to 455BHP N/A. They can probably push up the power band however that is going to come at a cost down low.
If they want more power at a low rpm range then they need a wider bore, otherwise they can use more rpms (like with the voodoo engine).
This was the sacrifice Ford made for the benefit of getting the coyote engine to market faster and at a lower price point. They wanted to be able to use the same tooling so they stuck with the same bore spacing. Them modular motor (and carried over to the coyote) has a bore spacing of 3.937 inches. The coyote has a bore of 3.629 inches and a stroke slightly longer then the bore, this isn't considered ideal for a performance engine.
For comparison the 1969 BOSS 302 engine used a 4.000 inch bore and a 3.000 inch stroke. With 1960s technology they were pushing 400 horsepower, however they can not do that with the current block. The coyote would need better rotating mass in order to meet durability testing and spin to 8,000rpms which would probably make it cost too much for the Mustang GT price point. Also some it seems build and spin some of those old 302s up to 9,000rpms something that you wouldn't want to do with the coyote stroke.