• 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!


2016 Cat recall changes

jonx96

4000 Posts Club
8 Second Best E/T
HFCOTM
Member ID
#4957
Messages
4,246
Reactions
10,573
Likes
302
City
Small town
State
MI
Country
United States
Vehicle
2019 Challenger Redeye
#1
A few people have asked for changes after the cat recall flash. The answer is really no change as far as the flash goes but the potential to maybe reduce even more torque. This explains why @moparjim still had so many issues after the update. Anyone curious around 0 DA I saw @vortecd 100% stock car hit 98% injector duty cycle on more than one pass. I can't remember off the top of my head but the car was going for .68 or .7x lambda something on full throttle and the fuel couldn't keep up. This was pre cat recall we won't be doing any testing before we tune post recall. No point @moparjim did that and there were no improvements.
@vortecd let me pull a stock file before and after the update.
After cat update
1640142422821.png
Before cat update
1640142341301.png
Comparison. The DTC show a difference but I didn't see anything
1640142309251.png
 


moparjim

1000 Posts Club
Founding Member
10 Second Best E/T
HFCOTM
Member ID
#1084
Messages
1,731
Reactions
4,306
Likes
212
City
Vaudreuil
State
Non-US
Country
Canada
Vehicle
2016 Challenger Hellcat
#2
My car was maxing out the injectors from adding fuel and adding timing to burn it off apparently. My AFR was in the mid 10's before the recall was done. Basically why I had it done. Thinking something was off and this would cure it. Wrong!!
I will look and see if I can find a post recall, pre tune log to send you.
 


OP
jonx96

jonx96

4000 Posts Club
8 Second Best E/T
HFCOTM
Member ID
#4957
Messages
4,246
Reactions
10,573
Likes
302
City
Small town
State
MI
Country
United States
Vehicle
2019 Challenger Redeye
Thread Starter #3
My car was maxing out the injectors from adding fuel and adding timing to burn it off apparently. My AFR was in the mid 10's before the recall was done. Basically why I had it done. Thinking something was off and this would cure it. Wrong!!
I will look and see if I can find a post recall, pre tune log to send you.
Right it will send extra fuel to cool the cats. Here is one of his pulls that day. factory is around .87 for normal power enrichment without the cats adding more fuel. Injectors just can't keep up.
1640190498547.png
This here was his first pass of the day
1640190644697.png
 


Paladin06

4000 Posts Club
Founding Member
Premium Account
U.S. Army Veteran
Donating Member
HFCOTM
Member ID
#1080
Messages
4,662
Reactions
24,172
Likes
302
City
Clarksville
State
TN
Country
United States
Vehicle
2015 Challenger Hellcat/2019 Challenger Redeye
#4
I keep getting letters about the recall for my 2015 and I keep throwing them away.
 


moparjim

1000 Posts Club
Founding Member
10 Second Best E/T
HFCOTM
Member ID
#1084
Messages
1,731
Reactions
4,306
Likes
212
City
Vaudreuil
State
Non-US
Country
Canada
Vehicle
2016 Challenger Hellcat
#5
Right it will send extra fuel to cool the cats. Here is one of his pulls that day. factory is around .87 for normal power enrichment without the cats adding more fuel. Injectors just can't keep up.
View attachment 59902
This here was his first pass of the day
View attachment 59903
Did he log the fuel pump?
Mine was losing some pressure making the injector situation worse. Changed the fuel pump and the same results.
 


OP
jonx96

jonx96

4000 Posts Club
8 Second Best E/T
HFCOTM
Member ID
#4957
Messages
4,246
Reactions
10,573
Likes
302
City
Small town
State
MI
Country
United States
Vehicle
2019 Challenger Redeye
Thread Starter #6
Did he log the fuel pump?
Mine was losing some pressure making the injector situation worse. Changed the fuel pump and the same results.
Yes. He did. That was struggling as well. I really wish the hellcat had dual pumps as well. I remember reading a lot of people running a 2.85 on hellcats without any fuel upgrades and that's just crazy.
 


vortecd

Poster Club Hall of Fame
Premium Account
Donating Member
9 Second Best E/T
HFCOTM
Member ID
#1248
Messages
48,695
Reactions
156,581
Likes
402
City
Middleville
State
MI
Country
United States
Vehicle
2016 Charger Hellcat
#7
I keep getting letters about the recall for my 2015 and I keep throwing them away.
I wanted the new parts, cats and 02's so I did it
 


moparjim

1000 Posts Club
Founding Member
10 Second Best E/T
HFCOTM
Member ID
#1084
Messages
1,731
Reactions
4,306
Likes
212
City
Vaudreuil
State
Non-US
Country
Canada
Vehicle
2016 Challenger Hellcat
#8
I
Yes. He did. That was struggling as well. I really wish the hellcat had dual pumps as well. I remember reading a lot of people running a 2.85 on hellcats without any fuel upgrades and that's just crazy.
I know a guy that ran the 2.85 on stock fuel system. He though I was nuts for suggesting he upgrade his injectors. As did his tuner.
He ended up having issues with the car and sold it.
This was a couple of years ago.
Since then I would have also suggested upgrading the fuel pumps.
 


Paladin06

4000 Posts Club
Founding Member
Premium Account
U.S. Army Veteran
Donating Member
HFCOTM
Member ID
#1080
Messages
4,662
Reactions
24,172
Likes
302
City
Clarksville
State
TN
Country
United States
Vehicle
2015 Challenger Hellcat/2019 Challenger Redeye
#9
I

I know a guy that ran the 2.85 on stock fuel system. He though I was nuts for suggesting he upgrade his injectors. As did his tuner.
He ended up having issues with the car and sold it.
This was a couple of years ago.
Since then I would have also suggested upgrading the fuel pumps.
Upgrading the injectors if only to Demon injectors would have gotten the job done.
 


ACMAVRO

2000 Posts Club
Founding Member
Donating Member
11 Second Best E/T
HFCOTM
Member ID
#1214
Messages
2,174
Reactions
5,105
Likes
302
City
Ocean Springs
State
MS
Country
United States
Vehicle
2015 Challenger HC M6
#10
I did the recall, then got a tune. I do have 2 pumps tho.
 


oilburner

500 Posts Club
Founding Member
9 Second Best E/T
Member ID
#1135
Messages
686
Reactions
1,740
Likes
132
City
coboconk
State
Non-US
Country
Canada
Vehicle
2016 challenger hellcat
#11
I`m getting my recall done soon going to walk into the dealer with my cats. the rest of the car will still be at home lol.
 


Attachments

OP
jonx96

jonx96

4000 Posts Club
8 Second Best E/T
HFCOTM
Member ID
#4957
Messages
4,246
Reactions
10,573
Likes
302
City
Small town
State
MI
Country
United States
Vehicle
2019 Challenger Redeye
Thread Starter #12
I`m getting my recall done soon going to walk into the dealer with my cats. the rest of the car will still be at home lol.
That’s funny. But they will most likely want to do the flash too
 


BULL

Oh NO! Not that guy!
Staff Team
Founding Member
U.S. Marine Veteran
Donating Member
HFCOTM
Wiki Contributor
Member ID
#1079
Messages
14,585
Reactions
44,734
Likes
402
City
Weld County
State
CO
Country
United States
Vehicle
MY16 M6 Challenger Hellcat
HFCOTM
View Images
#13
I`m getting my recall done soon going to walk into the dealer with my cats. the rest of the car will still be at home lol.

Let me know if that works for you, I'll do as well.
 


BULL

Oh NO! Not that guy!
Staff Team
Founding Member
U.S. Marine Veteran
Donating Member
HFCOTM
Wiki Contributor
Member ID
#1079
Messages
14,585
Reactions
44,734
Likes
402
City
Weld County
State
CO
Country
United States
Vehicle
MY16 M6 Challenger Hellcat
HFCOTM
View Images
#14
I`m getting my recall done soon going to walk into the dealer with my cats. the rest of the car will still be at home lol.

You got dimensions for that stand?

I'll like them if possible.

:whistle:
 


oilburner

500 Posts Club
Founding Member
9 Second Best E/T
Member ID
#1135
Messages
686
Reactions
1,740
Likes
132
City
coboconk
State
Non-US
Country
Canada
Vehicle
2016 challenger hellcat
#15
I know the service manager, he laughed an said ok . I`m only doing it to make dodge feel good an not send me any more mail.
 


oilburner

500 Posts Club
Founding Member
9 Second Best E/T
Member ID
#1135
Messages
686
Reactions
1,740
Likes
132
City
coboconk
State
Non-US
Country
Canada
Vehicle
2016 challenger hellcat
#16
You got dimensions for that stand?

I'll like them if possible.

:whistle:
I take no credit for the design @DemonSRT takes the credit but I did all the welding of it.
 


oilburner

500 Posts Club
Founding Member
9 Second Best E/T
Member ID
#1135
Messages
686
Reactions
1,740
Likes
132
City
coboconk
State
Non-US
Country
Canada
Vehicle
2016 challenger hellcat
#17
You got dimensions for that stand?

I'll like them if possible.

:whistle:
for sure!!
 


DemonSRT

500 Posts Club
Donating Member
8 Second Best E/T
Member ID
#1457
Messages
540
Reactions
1,718
Likes
132
City
Kawartha Lakes
State
Non-US
Country
Canada
Vehicle
Built in Canada 2018 Demon #3135
#18

Paladin06

4000 Posts Club
Founding Member
Premium Account
U.S. Army Veteran
Donating Member
HFCOTM
Member ID
#1080
Messages
4,662
Reactions
24,172
Likes
302
City
Clarksville
State
TN
Country
United States
Vehicle
2015 Challenger Hellcat/2019 Challenger Redeye
#19
I did the recall, then got a tune. I do have 2 pumps tho.
I’ve raced a number Redeyes with my tuned 2015 Hellcat and we run door to door until we dropped at 145/155. I think most important I was with a 170 pax and they were alone so.. My tuned 2015 Hellcat has gapped a couple stock Hellcat every time so…
 


oilburner

500 Posts Club
Founding Member
9 Second Best E/T
Member ID
#1135
Messages
686
Reactions
1,740
Likes
132
City
coboconk
State
Non-US
Country
Canada
Vehicle
2016 challenger hellcat
#20
You got dimensions for that stand?

I'll like them if possible.

:whistle:
justed talked to @DemonSRT an as expected he has no problem.
tomorrow I will drop the car down attach cradle an take a bunch of pics an measurements for anyone who wants to copy.;)
it works fantastic.
there`s a separate support for rear of oil pan so you can remove trans as well.
 




Top