Whipple Supercharger for 6.4

[Rockcrawlindude]

It who wants to not make power until 4000 RPM?

Is that where it makes power?

 

[Vdrsnk]

It who wants to not make power until 4000 RPM?

Not quite the way it works, that’s more of how a turbo works. A procharger is between a twin screw supercharger (whipple - low end power that tapers off and a turbo (almost all top end). A procharger continues building more and more along the way. Very smooth. I’d still prefer a whipple given the application though.

 

[Riccochet]

I have two issues with prochargers. First they develop leaks on the shaft seal. Annoying, but fixable. The other issue is they have a much higher gearing ratio in the powerhead, like 4:1. Which means you need a lot more belt tension to prevent slipping. Sometimes, depending on application, you can install wider pulleys and a wider belt to help with that. Even then it still might slip.

They're also not good if you plan on doing any auto-x or road course racing. The heat build up is hard to deal with, where whipple's are liquid to air cooled.

 

[jsalbre]

Not quite the way it works, that’s more of how a turbo works. A procharger is between a twin screw supercharger (whipple - low end power that tapers off and a turbo (almost all top end). A procharger continues building more and more along the way. Very smooth. I’d still prefer a whipple given the application though.

I mean, yeah, they make some power down low, but nothing like a positive displacement blower. I realize our engines, like most modern gas engines have to rev to make their power (there’s an argument to be made that the old ones did too, manufacturers just lied about power numbers), but if I’m adding power I want as much of it down low as possible.

Plus a PD blower just sounds way better than a centrifugal.

If you want some extra power, but not quite as much as a blower (and also want to spend a tiny fraction of the cost) you could always swap the pistons for ones from a “standard” 6.4 and do some tuning to bump you up from 410 HP to 470+. I’m not sure if anyone has done it yet, but I can’t think why it wouldn’t work.

All this said, there’s a reason the Ram 6.4 makes less power than the other 6.4s: longevity. This engine is designed to survive spending a significant portion of its life running hard, and with more power that survivability is going to go down.

I’d still take more power though…

 

[Riccochet]

I mean, yeah, they make some power down low, but nothing like a positive displacement blower. I realize our engines, like most modern gas engines have to rev to make their power (there’s an argument to be made that the old ones did too, manufacturers just lied about power numbers), but if I’m adding power I want as much of it down low as possible.

Plus a PD blower just sounds way better than a centrifugal.

If you want some extra power, but not quite as much as a blower (and also want to spend a tiny fraction of the cost) you could always swap the pistons for ones from a “standard” 6.4 and do some tuning to bump you up from 410 HP to 470+. I’m not sure if anyone has done it yet, but I can’t think why it wouldn’t work.

All this said, there’s a reason the Ram 6.4 makes less power than the other 6.4s: longevity. This engine is designed to survive spending a significant portion of its life running hard, and with more power that survivability is going to go down.

I’d still take more power though…

That's why I went with a whipple on my last 1500. I was also tuned on the more conservative side as I didn't replace the internals other than the cam.

Once you start getting to stupid levels of power you better have a plan, and lots of money, to make that power usable. Gearing, driveshaft, axles shafts, suspension, TC, fuel system, cooling. The lack of weight in the rear is a problem keeping the tires hooked. Even so, mine was putting out just under 500/500 to the wheels and it was a handful if you got on it in anything other than a straight line. There was all kinds of vibrations I was chasing down.

It's a rabbit you need to be financially prepared for.

 

[Vdrsnk]

I mean, yeah, they make some power down low, but nothing like a positive displacement blower. I realize our engines, like most modern gas engines have to rev to make their power (there’s an argument to be made that the old ones did too, manufacturers just lied about power numbers), but if I’m adding power I want as much of it down low as possible.

Plus a PD blower just sounds way better than a centrifugal.

If you want some extra power, but not quite as much as a blower (and also want to spend a tiny fraction of the cost) you could always swap the pistons for ones from a “standard” 6.4 and do some tuning to bump you up from 410 HP to 470+. I’m not sure if anyone has done it yet, but I can’t think why it wouldn’t work.

All this said, there’s a reason the Ram 6.4 makes less power than the other 6.4s: longevity. This engine is designed to survive spending a significant portion of its life running hard, and with more power that survivability is going to go down.

I’d still take more power though…

I have ran a roots blower, a kenne bell 2.2, a kenne bell 2.8, twin turbo’s, and a F1 procharger. Believe it or not depending on intake design that you go with, you can get a lot of low end torque. I could post a dyno graph to prove that.

1 would also beg to differ on the sound haha. You absolutely can’t beat the sound of an F1 procharger. My previous car with an F1 Procharger.

Don’t mind the quality, it was with an old phone .

 

[jsalbre]

I have ran a roots blower, a kenne bell 2.2, a kenne bell 2.8, twin turbo’s, and a F1 procharger. Believe it or not depending on intake design that you go with, you can get a lot of low end torque. I could post a dyno graph to prove that.

1 would also beg to differ on the sound haha. You absolutely can’t beat the sound of an F1 procharger. My previous car with an F1 Procharger.

Don’t mind the quality, it was with an old phone .

Sounds good, but I’ll still take the PD whine!

 

[M3Jake]

Any news on this?

I'd love a Whipple on my new truck.

I did a 5L whipple on a stroked 408 Gen 3 GM V8 ("LS") in my 68 GMC C15 before I sold it.

The charge cooler, pump and all that is nothing.

I did a Gen 5 LT4 in a all aluminum Jeep we built.

Frozen boost has the Delphi pumps in use by all the OEM's and several heat exchangers to manage. I do a small expansion tank as high as possible to burp it all.

I got married last Oct. The supercharger fund took a hit. I'll revisit this once I recover. LOL

 

[jsalbre]

Why not this?

Dodge Durango 6.4L Whipple Gen 6 Supercharger System

Whipple Superchargers race winning, record breaking Gen 6 3.0L twin screw supercharger for the Dodge 6.4L V8 Hemi engine.

whipplesuperchargers.com

The intake is on the wrong side.

You might be able to make this kit for the 1500 5.7 eTorque motor work:

Dodge Ram 5.7L E-Torque Supercharger Kit

Whipple Superchargers bolt on supercharger system for the Dodge Ram with the 5.7L V8 E-Torque engine.

whipplesuperchargers.com

Or this for the regular 1500 5.7:

Dodge Ram Truck 5.7L Gen 6 SC Kit 2019-2022

Whipple Supercharger system for the 2019-2022 Dodge Ram 5.7L Hemi engine.

whipplesuperchargers.com

 

[jsalbre]

That doesn't seem like that big an issue to me. The intake is modular. Use one of the other ones that go to that right side.

I am more after the 6.4L tune and PCM unlock via HP Tuners.

You can't flip the intake, the shaft goes through it and is off-center. The tune will also be wrong, as the Durango 6.4 and the Ram 6.4 use different heads and pistons, and thus have different compression and other characteristics. Unless you're planning to swap parts.

 

[jsalbre]

I'd cam it, and tune it myself with HP Tuners (after they decrypt it) on my dyno. Does the 5.7L and 6.4L share the same ECM? If not, HP Tuners won't be unlocking a different computer type via Whipple.

You can use the intake tube from the gen 5 Ram 1500 kit you linked.

Talking with Mike now. Maybe he produces a kit for us.

I'm not sure about the ECM. I'd guess yes, because I can't think of a reason not to, but that's never stopped them from making strange decisions before.

 

[Riccochet]

Boosted Motorsports on YT just finished a whipple'd stroked 6.4 swapped in a Dakota.