[DAYTONA392]

What's the most boost/power you can safely get out of a supercharged 392 before you need to start upgrading parts? I don't know if I'll be able to get my hands on a msrp Hellcat, so a supercharged 392 is my next option. I've heard the 392 can barely make 550whp without upgrading internals. I'll be selling my daily driven R/T soon, so I need this blown SRT to be reliable. It will be an auto btw. Thanks!

Not true there is a new kit out there I’ll post a link twin turbo 5 psi 600 whp

Hellion 2006-2023 Hemi 5.7L / 6.1L / 6.4L Street Sleeper® Hidden Twin Turbo System (Challenger, Charger, 300C, Magnum) - Hellion Turbo

The performance level for V8 5.7L, 6.1L and 6.4L 2006-2023 Challengers, Chargers, 300C and Magnum vehicles just got raised. Hellion now produces a “hidden”

www.hellionpowersystems.com

 

[Sbcam69]

Good to know, thanks guys, was thinking along these same lines. Also I heard the tranny is our SRT8's can't go much above 600HP RWHP (Talking automatic here) so that's something to consider.


Basically I'll just try and save up for a Charger Hellcat (as I have 3 young kids so 4 doors is better.) Or Trade in my SRT8 (I own in free and clear) and use it as a down payment for the Charger.


I think it would be cool to have the most powerful (based on HP) production Sedan in the world. Plus with a few mods down the road it would remain so as you most likely could easily bump it to 900 - 1000HP would be my guess.


Sorry, don't mean to hijack this thread.


Alex

So I had a d1x procharger installed e85. Full bolt ons and was pushing 650 rwhp and blew my 5spd tranny now upgraded to 8spd hp70 trans and fully forging motor and bigger port n polished heads cam lifters
Soon to be pushing about 900 to 1000hp. Should be fun.

 

[VQ4NFO]

So I had a d1x procharger installed e85. Full bolt ons and was pushing 650 rwhp and blew my 5spd tranny now upgraded to 8spd hp70 trans and fully forging motor and bigger port n polished heads cam lifters
Soon to be pushing about 900 to 1000hp. Should be fun.

You will have to fill us in on how you got the HP70 trans to fit where the NAG1 was. 😁

 

[SWCCC]

I am in the same boat as you. I have also researched to find the same info.. you could spend $8k-$10k to throw a blower on and keep stock internals with 6-7lbs boost. But then you have to think reliability and longevity to think about.

You could add the rods and pistons and spend another $5k to run from 6-12lbs of boost putting you up with the hellcat.. jn the end around $15k.

That is where it ends up being a slippery slope for me. If we spend that much then why not get some stage 2 apache heads and a cam? Or even purchase a forged HHP/BES shortblock along with a blower to put you in the 1000hp club.

Once you go down that rabbit hole you have to look at new half shafts, driveshaft, transmission upgrades, etc...

Sorry for the rambling. So it seems that blower and pistons/rods should net us 650-700hp safely for under $20k which would put us at sticker for a hellcat (not with dealer markup).. minus the warranty and long term value.. plus the hellcat base already has all of those high HP capable components that i rambled about earlier

Ah the Rabbit Hole of H.P!

 

[John Kloehr]

Ah the Rabbit Hole of H.P!

I chose the 6.4 over a 'cat as it would be enough for my back roads. And it really is enough. I also chose a shaker as there is no kit to put a blower on a shaker. Then I mentioned this in some thread and dammit(!) Luke @stevewhite Motors tells me he can do that. Been bugging me ever since.

Yes, 6 to 7 pounds max, then at least open ring gaps if going for more, but if in that deep, it is mostly parts to go a little bit further. NA is still enough for my back roads, but now I think every now and then...

 

[stevewhite]

recommend no more than 5.5 to 6psi of boost with a fuel system and great tuning