Stock SRT Challenger Dyno's 420 to the wheels.

[CamaroSpike23]

Originally Posted by kevin2323

you are right but the new hemis cannot be tuned the way the old ones were...you have to stroke these ...the 425 hp to 600 one you speak of is the old school 426 hemi engine...which was a 7L v8 which was quoted wayyyyyyyyyyy below its hp rating....that is why the new hemis can be stroked into a 392 or 426....or even a 440

and the new hemi's aren't even real hemi's.

[1320junkie]

Originally Posted by CamaroSpike23

and the new hemi's aren't even real hemi's.

[porcupinekiller]

Originally Posted by CamaroSpike23

and the new hemi's aren't even real hemi's.

And don't forget real Chargers only have 2 doors.

[G8GT4now]

Originally Posted by kevin2323

we all know that....we werent talking about competition in here just dyno....and the gxp is faster by .1 seconds....not that serious...

Depends on what magazine you look at I suppose. My point was just that a dyno number alone doesn't tell you very much. So if the Camaro faithful are worried that their car will only dyno 370 to 380 RWHP, it doesn't really matter.

And aren't you the Kevin that was seriously considering the Challenger? Did you ever get one or are you waiting for the Camaro?

[kevin2323]

Originally Posted by G8GT4now

Depends on what magazine you look at I suppose. My point was just that a dyno number alone doesn't tell you very much. So if the Camaro faithful are worried that their car will only dyno 370 to 380 RWHP, it doesn't really matter.

And aren't you the Kevin that was seriously considering the Challenger? Did you ever get one or are you waiting for the Camaro?

yea i agree with you...

and yes i had a challenger on order and the dealer turned out to be a typical dealer and i canceled and decided to see what they do with the challenger in 2010....and if in the meantime i can get a great deal ill go for it...but yes the camaro is a option....but not likely

[radz28]

Originally Posted by 1_2Many

Not sure about modern HEMI engines, but back in the 60's the 425 hp rated motors were making upward of 600 hp on a dyno.

Yeah, but those tests were completely different and not representative of real-world conditions. I believe many tests like that didn't have the exhaust system intact, no accessories, no air filter, and a bunch of stuff like that. Like another person said, there are correction factors that can be altered and conditions that could account for those numbers. ZL1s were rated to close to and above 600 horse too, but that was with a different tune, headers, no accessories, etc. Nowadays, there are so many differences that I BET the modern HEMI gets very close (well, within 50 horse' or so) to the second generation HEMI if tested in the same fashion. It's not representative though of driving the car on the street. If you look at the ET and trap speed of those cars, they were pretty similar to the likes of many COPO GM cars and a few Fords. Anyhoo, it seems that those numbers are pretty inflated or the information misrepresented. No biggie though.

[Muscle Master]

Originally Posted by CamaroSpike23

and the new hemi's aren't even real hemi's.

It's not called the modern Hemi for nothing, Theses so called non-real Hemi's makes more HP per liter than the old hemis

[kevin2323]

Originally Posted by Muscle Master

It's not called the modern Hemi for nothing, Theses so called non-real Hemi's makes more HP per liter than the old hemis

you beat me too it.

[Muscle Master]

Originally Posted by kevin2323

you beat me too it.

I mean I hate how they say it, it's like Chrysler just cut the sphere in half and just bolt them to the engine


the new spheres are way more unique and efficient then the Hemi's from past time, they were Engineered that way

[CamaroSpike23]

Originally Posted by Muscle Master

I mean I hate how they say it, it's like Chrysler just cut the sphere in half and just bolt them to the engine


the new spheres are way more unique and efficient then the Hemi's from past time, they were Engineered that way

they were Engineered based off of LS heads.

[kevin2323]

Originally Posted by CamaroSpike23

they were Engineered based off of LS heads.

that is opinion not fact.

[KILLER74Z28]

How can anyone use this video as fact... You can't see anything. If I could see the numbers I might believe it...

[Muscle Master]

Originally Posted by CamaroSpike23

they were Engineered based off of LS heads.

The 5.7 at least, not so sure about the 6.1, way different engine than the 5.7

[SS 376]

Show me some quarter mile times. If the SRT8 was generating what, 420 to the wheels, I'd figure we should see something significantly below 13 seconds in the 1/4 mile...