2008 LX and LY models: Features and Changes

[srt8man]

So the cosmetic changes are not that significant. Any information about increased horsepower for the 2008 models (I recall a post you made about the 2009 SRT8 getting a big bump to over 500 hp)? GM has their 362 hp Pontiac G8 GT coming soon. Motortrend reported the upcoming CTS-V will have 600 hp! I'd like to see Chrysler bump the power a bit.

Originally Posted by ResumeSpeed

Production is still 3-1/2 months away... as best I can tell the unveiling is scheduled for next month, possible at a national dealer meeting/event. Pics may or may not show up before then. The cosmetic changes are not major - enhanced floor console, enhanced instrument cluster, refreshed decklid and taillamps, and refreshed bodyside molding.

[ResumeSpeed]

No HP changes for the 2008 models. Performance numbers are being kept very quite for next year's all-new 5.7 and 6.4L Hemi's.

Originally Posted by srt8man

So the cosmetic changes are not that significant. Any information about increased horsepower for the 2008 models (I recall a post you made about the 2009 SRT8 getting a big bump to over 500 hp)? GM has their 362 hp Pontiac G8 GT coming soon. Motortrend reported the upcoming CTS-V will have 600 hp! I'd like to see Chrysler bump the power a bit.

[E55 KEV]

Originally Posted by ResumeSpeed

Performance numbers are being kept very quite for next year's all-new 5.7 and 6.4L Hemi's.

Is that for Model Year 2009?

[ResumeSpeed]

Originally Posted by E55 KEV

Is that for Model Year 2009?

The new 5.7 VVT model year 2009 for sure, the 6.4 most likely 2009...

[thematrixhasu]

resume i heard 380 hp 405lbs of torque with vvt and cyl deact. with the same gas mil we have now but my source is 50/50 with reliability somethings hes right about some things hes wrong.

[ResumeSpeed]

Originally Posted by thematrixhasu

resume i heard 380 hp 405lbs of torque with vvt and cyl deact. with the same gas mil we have now but my source is 50/50 with reliability somethings hes right about some things hes wrong.

HP/TQ numbers are pure speculation at this point, they just started road testing the new 5.7 last month. MDS and vvt is 100% for certain.

[thematrixhasu]

yeah i know they are testing at two locations somewhere near nevada and somewhere up up in canada but thats what my source told me so it could be unjustified

[Mr. Redbird]

Please forgive my ignorance but could you explain vvt and how it will improve performance? Thanks

[JMatt]

Originally Posted by Mr. Redbird

Please forgive my ignorance but could you explain vvt and how it will improve performance? Thanks

vvt=variable valve timing.

In theory, there's an optimum time for intake and exhaust valves to open and close for any given rpm. by varying the timing throughout the rpm range, you can broaden the rpm range in which the engine is operating optimally.

The benefits are in increased hp and fuel efficiency as compared to fixed valve timing.

[DaveW68]

Somebody can correct me if I'm wrong here, but from what I understand, the 6.1L hemi already has VVT and is one of the 1st ever to offer it in a push-rod engine. I understand that's how they push so much power from these engines and why they rev so nicely. It only makes sense that it would eventually trickle down to the 5.7L hemi. I've heard rumors of the 6.4L hemi having 525+ hp, but that figure seems kinda high unless they make some major changes to the way the engine breaths or offer some sort of forced induction. My guess would be more like 450-460 hp NA at the top end. The 7.0L Z06 is only pushing 505 hp and that engine breaths waaayyy better than ours do. Even the Viper's 8.3L engine is currently pushing just a little over 500 hp.