Originally Posted by
MoparFreak69
You also have to take into account the fact that a turbocharger does not require any power to produce boost like a supercharger does. If an SRT engine were to be turbo'd with the same pressure as the supercharger produces, without having to expend the kind of energy turning it, it would produce a whole lot more power, guaranteed.
Half the boost, without the power loss to produce the boost equals pretty close performance.
You also have to factor in the different gear ratios of the limiteds vs the srts. Although slight, the better ratio will always equal slightly better performance in the acceleration race.
I understand what your saying, but, regarding the gearing, one must consider the tranny ratios along with the rear end ratios. The SRT6 rear and tranny ratios are optimized for the overall power curve.
One must also consider that a factory tuned setup is going to be more efficient in developing power from a pound of boost. I would venture to guess 10 to 12 HP per pound of boost for an underchassis turbo depending on the level of tuning refinement.
The SRT6 is a positive displacement blower, so it creates significant torque as soon as the clutch engages. One thing I found on the initial testing of the turbo system on the 300C with an intercooler developed very little power in first and second gear. Deleting the intercooler drastically improved bottom end power.
I ran my 300C against an identical charger running same boost, only he ran with a centrifugal SC. I made a lot more torque, but the SC would get out of the hole faster due to traction issues. He ran about 106 in the quarter, I ran 111. He would still beat me both to the lights, and slightly faster ET.
While it would be a much closer race, a stock SRT6 against an NA turbo running 8psi, the SRT6 is still going to have the edge.
Now swap that NA block with a forged SRT6 block, push the turbo to 10 PSI, and you have a game changer.
Don't get me wrong, an NA crossfire with 7-8 PSI will be a riot. I love turbos, and would much rather have a turbo SRT6 than a supercharged SRT6 any day.