• Sign Up! To view all forums and unlock additional cool features

    Welcome to the #1 Dodge, Jeep and RAM Forum dedicated to FCA owners and enthusiasts. Register for an account, it's free and it's easy, so don't hesitate to join the SRT Forum today!


Mating an HP90 to a 6.4L 392 ScatPack

fumanchu182

3000 Posts Club
Vendor
Premium Account
U.S. Navy Veteran
Donating Member
9 Second Best E/T
HFCOTM
Member ID
#2366
Messages
3,484
Reactions
8,476
Likes
302
City
Pasadena
State
MD
Country
United States
Vehicle
2015 Challenger SRT Hellcat
#1
A friend of mine started his journey with just a simple ProCharger… few months later with a built motor and 14-16 psi he blew the HP70 apart. Went with a “reputable” shop that built him a HP70 and he blew that up and as a gesture of good will after a forensics discovery ascertained why, they built him a HP90. He just got the old TCM so he can get the transmission to mate and then he can flash the HP90 TCM with his tuners file.

Has anyone done this before? He’s now having issues mounting the trans as two bolt holes dont line up. To protect him and the shop involved I’m asking for him or if anyone has done this before and would be kind enough to field a question or two from him it would be appreciated. Ill even buy you a case of beer.

If anyone can help it would be appreciated.
 


Speedy!

Infomercial Producer
Staff Team
Founding Member
U.S. Marine Veteran
9 Second Best E/T
HFCOTM & HFCOTY
Member ID
#1070
Messages
6,068
Reactions
15,529
Likes
402
City
Murfreesboro
State
TN
Country
United States
Vehicle
2016 Hellcat Go Man Go
#2
Sub'd
 


Magnified

Poster Club Hall of Fame
Founding Member
Member ID
#1155
Messages
11,710
Reactions
19,827
Likes
352
City
West Texas
State
TX
Country
United States
Vehicle
2017 Charger HC (once upon a time)
#3
Isn't there a shop in Florida that has done that already? It's not a simple swap (obviously) and of course the computers will need massaging because they'll not be happy. I can't remember the name of the shop off hand, but i'm pretty sure they offered a package to do that swap even.
 


HWDan

1000 Posts Club
Founding Member
Premium Account
Donating Member
Member ID
#1183
Messages
1,531
Reactions
4,600
Likes
162
City
Home of the Hellcat
State
Non-US
Country
Canada
Vehicle
2017 Charger SRT 392
#4
There is a guy on Youtube that seems to have a habit of putting Hellcat, Demon and Redeye motors in 300's. While I haven't paid attention, I'm sure that would include the HP90 too.

Here he's talking about a new cross member/mount he needs to install ... I've started the video at that point ...

 


OP
fumanchu182

fumanchu182

3000 Posts Club
Vendor
Premium Account
U.S. Navy Veteran
Donating Member
9 Second Best E/T
HFCOTM
Member ID
#2366
Messages
3,484
Reactions
8,476
Likes
302
City
Pasadena
State
MD
Country
United States
Vehicle
2015 Challenger SRT Hellcat
Thread Starter #5
I forwarded this video to him, had a quick chat. He's doing full hellcat swaps so the patters all line up. I'm just trying to decipher if the HP90 can bolt to the 6.4 no problem.
 


EricG

1000 Posts Club
Premium Account
10 Second Best E/T
Member ID
#1385
Messages
1,539
Reactions
3,096
Likes
162
City
Albuquerque
State
NM
Country
United States
Vehicle
'19 Hellcat Redeye
#6
I know of at least 2 guys locally, one with a 5.7 R/T that is very modded...twin turbos(maybe 800 hp?) that he just had to upgrade to a HP90 and one with a scat pack 392 twin turbo that is over 1000 hp and he also had to upgrade to the HP90. It's definitely possible and I would dare to say a lot of people have done it.
 


Stormtrooper1320

Poster Club Hall of Fame
Founding Member
U.S. Marine Veteran
Member ID
#1068
Messages
10,407
Reactions
34,574
Likes
352
City
Bran
State
Non-US
Country
Romania
Vehicle
Panzerkampfwagen 150
#7
Doesn't a 2500 Ram 4x4 with the 6.4 come with the HP90?
 


Stormtrooper1320

Poster Club Hall of Fame
Founding Member
U.S. Marine Veteran
Member ID
#1068
Messages
10,407
Reactions
34,574
Likes
352
City
Bran
State
Non-US
Country
Romania
Vehicle
Panzerkampfwagen 150
#8
@hellno probably knows how to make this work. I think he builds transmissions.
 


EricG

1000 Posts Club
Premium Account
10 Second Best E/T
Member ID
#1385
Messages
1,539
Reactions
3,096
Likes
162
City
Albuquerque
State
NM
Country
United States
Vehicle
'19 Hellcat Redeye
#9
Doesn't a 2500 Ram 4x4 with the 6.4 come with the HP90?
I believe the trucks come with what they call the 8HP75
 


MiHiHemi

500 Posts Club
Founding Member
Member ID
#1016
Messages
805
Reactions
2,425
Likes
132
City
Parker
State
CO
Country
United States
Vehicle
2015 Challenger SRT 426
#10
Call Glenn Rains at RPM. He’s done HP70 to 90 swaps and worked out the hassles involved.

https://www.rpmdenver.net
 




Top