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Yep nothing new here don't be harsh on me for this one. Those reports and complaints of sub 2016 hellcats.

Prematurely failing bearings, loud idle whine and ticking, recently replaced blower and same problem occurring and same issue again and again and again.

Pretty unfortunate for those who had to replace their blowers more than once along denied warranty.


So as for a rebuild, any of you guys and girls went ahead with Jon Bond Performance, sent their core blower for a standard or upgraded rebuild claiming better internals than the inferior sub 2016 's higher rpm limitation than oem . how is the blower holding up with or without mods and mileage on it so far?

For the experienced, what do you say is more cost effective in the long run(5 years) , rebuild/reinforce or replace with later model blower.

Wanted to keep it short and not technical 馃槄
 

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Challenger SRT Hellcat
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Yep nothing new here don't be harsh on me for this one. Those reports and complaints of sub 2016 hellcats.

Prematurely failing bearings, loud idle whine and ticking, recently replaced blower and same problem occurring and same issue again and again and again.

Pretty unfortunate for those who had to replace their blowers more than once along denied warranty.


So as for a rebuild, any of you guys and girls went ahead with Jon Bond Performance, sent their core blower for a standard or upgraded rebuild claiming better internals than the inferior sub 2016 's higher rpm limitation than oem . how is the blower holding up with or without mods and mileage on it so far?

For the experienced, what do you say is more cost effective in the long run(5 years) , rebuild/reinforce or replace with later model blower.

Wanted to keep it short and not technical 馃槄
Hellcat 2.4L supercharger is running for $4000-$7500-ish.
Part Number: 68373302AB (per TechAuthority February 11, 2020)

2019 - 68373302AB
2018 - 68373302AA - Supersession(s): 68373304AA, 68373304AB, 68373304AC, 68373304AE
2017 - Supersession(s): 68271244AB, 68271244AG, 68271244AI, 68271244AJ, 68271244AL, 68271244AM
2016 - Supersession(s): 68271244AB, 68271244AG, 68271244AI, 68271244AJ, 68271244AL
2015 - Supersession(s): 68165960AA, 68165960AB, 68165960AC, 68165960AD, 68165960AE, 68165960AF, 68271244AA, 68271244AB, 68271244AG, 68271244AI, 68271244AJ, 68271244AL

Supercharger Rebuilds:
Jon Bond offers 3 stages:
Stage 1- $1733 - OEM
Stage 2- $2200 - supports up to 18,000 rpm, upgraded bearings/coatings
Stage 3- $3200 - supports up to 22,000 rpm
A 2.85 pulley and stock lower spins ~14psi @ 17,800 rpm.
Stock OEM ~11.6psi @ 14,800 rpm
https://www.jonbondperformance.com/...ercharger-performance-rebuild/?v=868f8823ca02

Redeye 2.7L Supercharger is running $9500-ish:
Part#: 68454113AB (per TechAuthority February 11, 2020)
The advantage here is less rotor rpm, heat, and longevity ~ 14.5psi @ 15,340 rpm compared to a 2.4L with smaller pulley and higher rpm.

If you get a Mopar part and have it installed at the dealership, you get a 2yr/unlimited mile warranty on the part (https://www.mopar.com/content/dam/mopar/pdf/warranty/mopar_parts_accessories_warranty_statement.pdf). That could be beneficial if the OEM bearings go out. As shown above, there have been multiple revisions with the 2.4L Supercharger.

I had my first supercharger warrantied with part# 68271244AG; which is already making driver side bearing noise after 1 year. Another forum member had 68165960AD and just got it replaced with 68271244AM.
 

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Where can you buy a 2.7L for under 8k ?? You talking new or used ??
 

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Crazy , I am a dealer and my cost is higher.. LOL thats nuts !
 

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My Dealer in California (I live in Bama) quoted me $7,600.00 for the 2.7L Blower. Overboost kills the bearings! Sure, better bearings allow more RPM but, "OB" (see below quote) is a Mechanical Design Limitation of the 2.4L Blower. See attached quote from one of the FCA Engineers responsible for the Hellcat Engine Development.

"Before program launch we were running a 2:45 pulley ratio. That was good for about 750 horsepower. I would up the pulley ratio up to 2:50. Beyond that, the supercharger RPM will OB too hard and you'll start damaging bearings after a while."
 

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My Dealer in California (I live in Bama) quoted me $7,600.00 for the 2.7L Blower. Overboost kills the bearings! Sure, better bearings allow more RPM but, "OB" (see below quote) is a Mechanical Design Limitation of the 2.4L Blower. See attached quote from one of the FCA Engineers responsible for the Hellcat Engine Development.

"Before program launch we were running a 2:45 pulley ratio. That was good for about 750 horsepower. I would up the pulley ratio up to 2:50. Beyond that, the supercharger RPM will OB too hard and you'll start damaging bearings after a while."
Pulley Sizes - engine hp:
3.43 - 714hp (OEM)
3.17 - 760hp-ish (e.g. Metco)
2.85 - 830hp-ish (e.g. Litens)

Just to help clarify, the pulley ratio mentioned above isn't necessary the pulley size correct?
 

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I think that is the pulley pitch diameter not its drive ratio, I do t know what is being referenced in the engineers wording, hopefully it is diameter
 

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2019 Hellcat Charger. Same part number for supercharger.
68373302AD. (I don鈥檛 think that $7K price is for redeye 2.7). :unsure::unsure:
 

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Pulley Sizes - engine hp:
3.43 - 714hp (OEM)
3.10 - 750hp-ish (e.g. Metco)
2.85 - 810hp-ish (e.g. Litens)

Just to help clarify, the pulley ratio mentioned above isn't necessary the pulley size correct?
He was talking about drive ratios and I did the math:
2.45 to 1 = 3.34 diameter blower pulley (based on the OEM Balancer @ 8.184 diameter)
2.50 to 1 = 3.27 diameter blower pulley also based on the OEM Balancer.
 

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He was talking about drive ratios and I did the math:
2.45 to 1 = 3.34 diameter blower pulley (based on the OEM Balancer @ 8.184 diameter)
2.50 to 1 = 3.27 diameter blower pulley also based on the OEM Balancer.
For the 3.27 sized pulley being the upper limit, that puts the supercharger spinning around 15500 rpm @ 6200 rpm engine. That helps explain the increase from 2.4 to 2.7L for the Demon/Redeye supercharger.
 

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2019 Hellcat Charger. Same part number for supercharger.
68373302AD. (I don鈥檛 think that $7K price is for redeye 2.7). :unsure::unsure:
Yep! $7,600 for a 2.7L and that (I'm sure) was a cost +10% quote. So, if a Dealer "REALLY" loves you, you could save even more!
 

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2019 Hellcat Charger. Same part number for supercharger.
68373302AD. (I don鈥檛 think that $7K price is for redeye 2.7). :unsure::unsure:
Yup, you're correct. Redeye is 68454113AB, $9500-ish and posts updated.
 

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I have a AF, where they stand in longevity?
View attachment 549734
Below is the scenario I had:

Driven 51,000 miles, supercharger replaced with 68271244AG. At 62,000 miles, about 11,000 with the replacement and supercharger bearing noise is noticeable; will likely need replacement.

It looks like the 68165960-series part # was replaced with the 68271244-series part #.
 
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