2011 Dodge Challenger SRT8
Jeep doesn't use the Hemi name in advertising anymore. They just call it the 5.7L V8. Dodge isn't shy about calling it Hemi though.
Chrysler announced recently that the Hemi name would be downplayed on everything but the top of the line motor in an attempt to appear more green.
Dodge and Ram still use it. I think it is just Jeep and Chrysler that dropped it. I don't think it is to be "green", whats green about 5.7L V8? I think it is to be more classy. Hemi is seen as a muscle car engine, not a luxury engine.
Their reasoning was probably people here the word Hemi and a lot of them mistakenly think of old 1970 gas guzzling tanks. Just look at our President the green's got on to him because he owned a Chrysler 300 Hemi and I think he sold it soon after.
What is the difference b/w this 6.4L Hemi and the crate SEFI 6.4L Hemi? The crate SEFI 6.4L Hemi makes 525HP/510 ft-lbs of torque. Do you think Chrysler is underrating this engine now that they are putting it in regular production cars?
He had a 2005 Chrysler 300C (Hemi) while in the Senate. Now he has a 2009 Cadillac with a big block V8.
No published times yet. The information I gave is advanced info planned for press release.
A couple of things though:1) Since when is the current 5.7L not called Hemi? I've seen a zillion Chargers with "HEMI" on the side.
2) Skidpad numbers can be pretty academic, but I'd wait until head to head testing before spouting numbers. Chrysler's claim of 0.93 is all well and good, but you have to see them at the same time on the same skidpad (pref with the same driver(s)) to compare directly. Of course, no one is going to notice a 0.02 g advantage one way or the other in the real world, so it is sort of a moot point.
3) We'll see how the fuel economy numbers stack up. I don't know the Charger's Cd number, but I would guess it can't be better than the Mustang or Camaro, and I'd also guess that it has more frontal area. I'd expect the hwy number to be around what the Camaro gets if not a bit lower, at least until the DI upgrade arrives. Just a guess though; they could surprise me.
2) If Chrysler says the Challenger SRT8 will do 0.93gs, it's not just a "claim".
3) I'm pretty intrested in the fuel economy numbers myself. You bring up a good point about Charger's frontal area, but you also missed that new 8 speed automatic transmission Chrysler is putting in the upcoming 5.7 (and likely, 6.4 as well). That alone will bring highway fuel economy up.
How much... especially in conjunction with the engine improvements... is the question.
The IRON BLOCK SRT8 Challenger is about 200-300 pounds heavier than the aluminum blocked LS3 Camaro SS.
The Iron block doesn't account for the entire 200-300 pound difference (SRT put quite a few very heavy duty performance items that also add weight), but as was already said, if (more likely..when) SRT switches to an aluminum block, should see a instant weight reduction.
I doubt this engine has 525 horsepower. It's tuned for better fuel economy, and I believe it has a different camshaft profile. However, I'm sure a few Mopar parts and the engine is very easily capable of doing Five and a Quarter.
Just my educated guess, but I'd say 490 to 500 horsepower is probably a good ballpark figure.

Take a good look at that car.
There isn't a production Cadillac body panel on it.
How about the 2012 Camaro SS with a more powerful LS3 http://www.camaro5.com/forums/showthread.php?t=112346
However, I can't name anything that is on the market..... 4 doors, 5 passengers, 470 horsepower, $40K-ish, non-luxury car.... that competes with this Charger.
Last edited by guionM; Oct 28, 2010 at 11:44 PM.
SRT has been under rating engines since the Neon SRT-4.
I doubt this engine has 525 horsepower. It's tuned for better fuel economy, and I believe it has a different camshaft profile. However, I'm sure a few Mopar parts and the engine is very easily capable of doing Five and a Quarter.
I doubt this engine has 525 horsepower. It's tuned for better fuel economy, and I believe it has a different camshaft profile. However, I'm sure a few Mopar parts and the engine is very easily capable of doing Five and a Quarter.
Also, the crate hemi doesn't have DoD, does it? It seems that feature costs some revs and some peak power -- at least it does in the LS3/L99.
Replace the camshaft with the crate camshaft and maybe put in low restriction intake and exhaust, and you're probably at 525. But your EPA mileage would be down, and you probably would not pass noise standards.
Oh, I thought you were just talking about engine power. Yeah, people/magazines always seem to forget that the Challenger is a whole size larger than the Camaro and Mustang. When it comes to interior space and HP you would have to go to the CTS-V for the next closest competitor.
the challenger in any form isnt underrated. we just had a dyno day sunday with an auto R/T, auto SRT-8, and a manual SRT-8 with catback, intake, and handheld tuner. the auto R/T made 303 whp, the auto SRT-8 made 355 hp, and the manual SRT-8 with a little work done made 380 whp.

they are also physically massive cars. the only bigger vehicles I strapped down were the diesel trucks. they damn near filled up the entire dyno bay. I was never really around them until then.
im glad they keep upping the hp in all the hemis though, with more of them on the street it'll be easier for me to persuade my uncle to put one in his '72 cuda

they are also physically massive cars. the only bigger vehicles I strapped down were the diesel trucks. they damn near filled up the entire dyno bay. I was never really around them until then.
im glad they keep upping the hp in all the hemis though, with more of them on the street it'll be easier for me to persuade my uncle to put one in his '72 cuda


