6.1 vs 6.4 - Page 2 - Dodge Challenger Forum: Challenger & SRT8 Forums
General Challenger Discussion This section contains general discussion about the Dodge Challenger. If it does not fit into a more specific area, it probably belongs in here. (Dodge Challenger General Discussion)

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post #11 of 42 (permalink) Old 12-10-2012, 01:06 AM
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A lot depends on your long term goals, these days unless you run into a heck of a deal a used 2010 6.1 SRT8 is going to be about $9,000 less than a similar mileage used 2011 6.4 SRT8, with that much money you can buy a good positive displacement supercharger and put out 50-100 HP more than the 6.4 (depending on how safe of tune you opt for).

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post #12 of 42 (permalink) Old 12-10-2012, 01:11 AM Thread Starter
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yeah im eventually going to supercharger it. is compression too high on the 6.1s and 6.4s for a solid supercharger on the stock motors?
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post #13 of 42 (permalink) Old 12-10-2012, 06:04 AM
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yeah im eventually going to supercharger it. is compression too high on the 6.1s and 6.4s for a solid supercharger on the stock motors?

If you are looking for long term reliability then both motors can handle about 8lbs of boost.
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post #14 of 42 (permalink) Old 12-10-2012, 06:15 AM
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get the 6.1 there is options to stroke and bore to a 392 426 440 and then s/c. Or have the 6.1 forged,heads and cam and your golden!

[B][U][I][COLOR="DarkOrange"]09 SRT8 FORGED HEMI ORANGE 426-HURST 6 SPEEDSHORT THROW,HI FLOW CATS,ZOOMERS, hemishop (aj) TUNE,180 TSTAT PROCHARGED STAGE 2- D-1- 14 psi 801 hp SO MUCH MORE
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post #15 of 42 (permalink) Old 12-10-2012, 06:24 AM
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with the 6.4 supercharged with 8psi, people are getting just shy of 650HP. Throw in a couple bolt ons and you there. In an auto, with the right tires, that is a quick machine...really don't need it much quicker for street use... But thats up to you. Buy a cheap car wit nonworking motor...and drop in a 426 and supercharge. You'll need new tires every month. LOL
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post #16 of 42 (permalink) Old 12-10-2012, 07:46 AM
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Someone please correct me if I'm wrong, but as far as the engine goes, the only difference between the 6.1 and 392 is the bore and stroke, correct?


2012 Challenger...totally NOT stock.
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post #17 of 42 (permalink) Old 12-10-2012, 07:55 AM
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now that they are tunable the 6.4L is the way to go.
Warranty will be moot anyway if you mod it with FI

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post #18 of 42 (permalink) Old 12-10-2012, 08:11 AM
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I've had an RT and I've had a 392... I wouldn't trade back!


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post #19 of 42 (permalink) Old 12-10-2012, 09:06 AM
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At the moment, the 6.1 is your best bet if you plan on going into the motor. But if you just want to slap a blower on and call it done, then the 6.4 would be the way to go.

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post #20 of 42 (permalink) Old 12-10-2012, 10:03 AM
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Just traded in my 2011 R/T for a 2013 SRT8, no comparison, the statement that a stock R/T is faster than the 392 SRT8 is a false statement
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