Quote:
Originally Posted by tt335ci03cobra
Nice work but those graphs =/= comparable. The gt350 graph is scales with 550hp and 600tq iirc from the ford release. Also, you can easily tell that both vehicles power and torque crosses aren't at 5252rpms which they have to be because physics. The gt350's is crossing at about 5700ish.
Lastly, unless the gt350 makes nearly peak power well into 8,000rpms as the ford dyno release showed. In the graph listed here, it falls off far worse than it should from 7500rpm.
The ls7 is great but I would like to see Chevy revise it to about 550hp. It has the potential and would help Chevy continue to command an ls7 premium. As it sits, the 455-460hp 6.2 is too close to the ls7's output to command a typical $25-40k premium. Many have argued the majority of the z28's $75k price (advertised as the cost of the vehicle) is because an ls7 is a $20k+ crate engine. I wonder what a z28 with a 460hp 6.2 would really leave on the table vs an ls7 z28. Price wise it would likely have left $15-20k in a buyers pocket.
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Numbers are from dyno graphs provided by the manufacturers. The numbers were eyeballed and by no means 100% accurate. Measurements were taken every 500 rpms and as such the curves look slightly different especially at 1,000 rpms and redline than if the sampling rate was every 100 rpms, etc. However it does show the curves for both engines for comparison which is really what I was trying to convey. For reference here is Fords engine dyno.
