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Originally Posted by DGthe3
If turbo4s were better in every way, then of course people would be a fool to want V6s. But ... they're not better in every way. The reason why people want more efficient cars is mainly to save money. But if the engine takes premium & costs more to buy ... you aren't going to be saving much. Of course, you could run it with regular, and then lose the FE and performance advantages of the engine. While still paying more up front for it. Of course, you also have the added complication & associated failure potential of a FI engine. And don't forget turbo lag. Turbos are nice when they've spooled up. But until then, you're usually left wanting more displacement.
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True enough on some points, but on turbo lag I disagree. The lag of years past is almost non-existent now. Engines comparable to the twin-scroll turbo DI 2.3 coming to Mustang routinely see peak torque before 3,000rpm which is way earlier than the v6 will see peak torque. As far as cost, well you are getting higher output. If that's not worth the cost to you the point is irrelevant anyway.
Quote:
Originally Posted by DGthe3
As for modding, well they might yield better results on light mods for a little while. But if, for whatever reasons you might have, you want to get your base/mid level car up to V8 numbers its going to take a lot more effort to get a 4 cylinder there than it will take to get a V6 there.
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Again I'll have to disagree here. To get a v6 to v8 power levels you will need forced induction (assuming we exclude nitrous). It's much easier to swap turbos, change exhaust, tune and add fuel than it is to add forced induction to a car that is N/A from the factory. Look how hard it is for the v6 Camaro guys to make 400whp then compare that to a Mitsu Evo or one of the Subarus, even a turbo cobalt. If you're talking about some really high numbers sure displacement might become more significant. Even then, a built I4 will cost you less than a built v6 and there's no shortage of 500+whp turbo 4s. Other than that mod for mod and $ for $ the turbo cars are going to wreak havoc on the v6 cars.