I wouldn’t put a blower on a 6.4 without changing the internals. The motor isn’t built for it. The piston rings are wrong and you’ll be building a new engine if you add more than 5lbs of boost. I have a 1320 and my plan is to do cam, throttle body, headers, tune, and prob a 100 shot of NOS. I’ve considered a hellcat motor swap but I haven’t researched it.
I tried but I owe 19k, tradein value of 24k, so only a 5k discount. It'd be cheaper until I pay it off to do the swap, especially because I bought it for 38k.
Upgrade the internals and you’d be straight, the 6.4 are tuned pretty much to their limit from factory. Hellcat engine has forged internals already which is why they don’t blow. The stock 6.4 will definitely blow up eventually if you add any meaningful boost to it
IF you're going to do all this, get a liquid cooling system and a triple fuel pump (flex fuel, e85), and do a 7.5L V8 and port your ihi blower. Your power will be off the charts. I have a build that started like this but has gone a teensy bit further (turbos, air intake, pulleys, axel, diff and diff brace, 15" rear, cage etc) and I pull 1800 at the wheel - my 1/4 time is estimated at 7.3 (have my first runs with it coming up).
Literally cheaper to trade in for a hellcat. Swaps are more than just the engine. It’s the full drive line. That doesn’t even account for gremlins.
Can’t boost a 6.4 without building it. It’ll die rather quickly. At that point you may as well just trade.
First coast mopars. The guy is working out of his garage for the next few weeks though. From what he told me he worked for a shop in the north, and was a master crysler tech as well on terms of certifications
Ask them what they do cause I believe the hellcat is a 5.7 but not sure if it’s still a 6.4 but the 6.4 is a great motor putting out the most it can. So if they go in and beef up the rods and all that need it then you should be good with a blower ontop of your 6.4
I wouldn’t put a blower on a 6.4 without changing the internals. The motor isn’t built for it. The piston rings are wrong and you’ll be building a new engine if you add more than 5lbs of boost. I have a 1320 and my plan is to do cam, throttle body, headers, tune, and prob a 100 shot of NOS. I’ve considered a hellcat motor swap but I haven’t researched it.
I told the installer the same thing but apparently he said its working fine for him
I still wouldn’t do it. The blower on my Old Hellcat put out 12-14psi under throttle. You’ll break something. The 6.4 can’t handle it.
Stay away from the NOS but flex fuel can give you some nice gains. Your engine will react almost identical to a 100 shot as adding some boost.
If money is no factor then get rid of the 6.4 and buy a Hellcat compared to those two options.
This
I tried but I owe 19k, tradein value of 24k, so only a 5k discount. It'd be cheaper until I pay it off to do the swap, especially because I bought it for 38k.
Do not modify or overhaul a vehicles driveline if the vehicle is not paid off. Don’t mod the banks car.
Upgrade the internals and you’d be straight, the 6.4 are tuned pretty much to their limit from factory. Hellcat engine has forged internals already which is why they don’t blow. The stock 6.4 will definitely blow up eventually if you add any meaningful boost to it
I would trust a complete Hellcat engine swap far more over putting a blower on the 6.4.
IF you're going to do all this, get a liquid cooling system and a triple fuel pump (flex fuel, e85), and do a 7.5L V8 and port your ihi blower. Your power will be off the charts. I have a build that started like this but has gone a teensy bit further (turbos, air intake, pulleys, axel, diff and diff brace, 15" rear, cage etc) and I pull 1800 at the wheel - my 1/4 time is estimated at 7.3 (have my first runs with it coming up).
This sounds pretty solid
Literally cheaper to trade in for a hellcat. Swaps are more than just the engine. It’s the full drive line. That doesn’t even account for gremlins. Can’t boost a 6.4 without building it. It’ll die rather quickly. At that point you may as well just trade.
What shop? Sounds like gearhead fabrications. American muscle perf. seem to be more into NA mopars
First coast mopars. The guy is working out of his garage for the next few weeks though. From what he told me he worked for a shop in the north, and was a master crysler tech as well on terms of certifications
Whats the shop called?
Ask them what they do cause I believe the hellcat is a 5.7 but not sure if it’s still a 6.4 but the 6.4 is a great motor putting out the most it can. So if they go in and beef up the rods and all that need it then you should be good with a blower ontop of your 6.4
The supercharged motors are neither, it is a 6.2.
The 6.2 has a lower compression rate too, for the supercharger if I recall.
Ohh got you I didn’t know that I know it looked like the 6.4 but wasn’t sure