Stock SRT Challenger Dyno's 420 to the wheels. - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

GatorBlue371 · 03-08-2009, 02:11 PM

Is this real?

If it is Dodge has seriously underrated their 6.1L HEMI engine...

nester7929 · 03-08-2009, 02:16 PM

Yeah, Dodge underrates. The 5.7 is rated at 370 for the Chally, but it's more like 390.

GatorBlue371 · 03-08-2009, 02:17 PM

Quote:

Originally Posted by nester7929

Yeah, Dodge underrates. The 5.7 is rated at 370 for the Chally, but it's more like 390.

Yea but for the SRT to dyno at 420 it would have to be in the 450-500 range depending on % loss

1320junkie · 03-08-2009, 02:19 PM

Quote:

Originally Posted by GatorBlue371

Is this real?

If it is Dodge has seriously underrated their 6.1L HEMI engine...

If it is real its not stock, maybe a Diablo and some long tube headers etc..you can look at alot of reputable tuners dyno sheets and see how they got to that number.

fazm · 03-08-2009, 02:19 PM

depends on the type of dyno, correction factor, etc etc. you can make a dyno read about whatever you want.

a dyno is nothing more than a tuning tool.

truth411 · 03-08-2009, 02:39 PM

If it is real it is not stock, the 2008 challenger srt-8 auto's do 355-360 at the wheels I think.

Hesh · 03-08-2009, 04:24 PM

Well since they just post that it made 420hp, and never got you close enough to the dyno screen to verify its anyones guess. Id have to say

*CamaroSpike23* · 03-08-2009, 04:34 PM

fwhp.

manimsoblack · 03-08-2009, 11:55 PM

kevin2323 · 03-09-2009, 01:33 AM

fake

1_2Many · 03-09-2009, 01:53 AM

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.

G8GT4now · 03-09-2009, 10:42 AM

Regardless of the dyno number, they are still slower than the G8 GXP. The Camaro being lighter than the G8, will be even faster.

kevin2323 · 03-09-2009, 10:46 AM

Quote:

Originally Posted by G8GT4now

Regardless of the dyno number, they are still slower than the G8 GXP. The Camaro being lighter than the G8, will be even faster.

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

kevin2323 · 03-09-2009, 10:48 AM

Quote:

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.

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

03-09-2009, 01:53 AM	#11
1_2Many Drives: 2008 Suzuki SX4 Join Date: Oct 2008 Location: SoCal Posts: 785 View My Garage	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. __________________ We are the early orderers...we are GM's voluntary guinea pigs and their free source of feedback. How will we be thanked?

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03-08-2009, 02:16 PM	#2
nester7929 Rice Harvester Drives: 2014 Bright Yellow 2SS/RS Join Date: May 2008 Location: Plainview, TX Posts: 1,449	Yeah, Dodge underrates. The 5.7 is rated at 370 for the Chally, but it's more like 390.

03-08-2009, 02:19 PM	#5
fazm Drives: ex-500hp v6 mustang Join Date: Oct 2008 Location: arizona Posts: 606	depends on the type of dyno, correction factor, etc etc. you can make a dyno read about whatever you want. a dyno is nothing more than a tuning tool.

03-08-2009, 02:39 PM	#6
truth411 Drives: police interceptor Join Date: Nov 2008 Location: Austin, tx Posts: 1,292	If it is real it is not stock, the 2008 challenger srt-8 auto's do 355-360 at the wheels I think.

03-08-2009, 04:24 PM	#7
Hesh Drives: 2010 IOM Camaro Vin 34334 Join Date: Oct 2008 Location: Arlington, TX Posts: 566	Well since they just post that it made 420hp, and never got you close enough to the dyno screen to verify its anyones guess. Id have to say

03-09-2009, 01:33 AM	#10
kevin2323 Drives: challenger Join Date: Jul 2008 Location: miami Posts: 2,338	fake

03-09-2009, 10:42 AM	#12
G8GT4now Drives: 14 SS Sedan Join Date: Jul 2008 Location: Houston, TX Posts: 474	Regardless of the dyno number, they are still slower than the G8 GXP. The Camaro being lighter than the G8, will be even faster.