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Message: [QUOTE="Morgan@Midwest Diesel & Auto, post: 603034, member: 8143"] The 6.4 torque comes from the factory compounds if you didn't read that part in my statement. Also I stated that they would be very similar in torque with similar sized singles. Torque does not get made with fuel. Your turbo map dictates when the boost comes in which determines how soon or later your powerband starts. Fuel injection events at low rpm-low boost doesn't make really any power difference just efficiency. Tip pressure between a 6.0 injector and a 6.4 injector is not that different either, both peak at over 20,000 psi. I made a general comparison to the 6.0 and 6.4 that stated they are very similar. The 6.4 has more torque until you take away the compounds then they would be nearly identical on the power curve given the same HP engine with similar sized turbos. The cam has little to no difference between the two except for an 03 6.0 cam. And I hate to tell you, but bore and stroke still do matter. If that's not true then duramax's shouldn't make power at higher rpm because of their .150" larger bore and shorter stroke when compared to a 6.4 either? This is all basic engine 101 and it does apply either gas or deisel or any other fuel. Bore, stroke, cam timing, lobe lift, head flow, turbo size, all have everything to do with your power curve, not just what type of injector the engine runs. [/QUOTE]

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