• 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!


Getting off the line. Help!

fumanchu182

3000 Posts Club
Vendor
Premium Account
U.S. Navy Veteran
Donating Member
9 Second Best E/T
HFCOTM
Member ID
#2366
Messages
3,531
Reactions
8,594
Likes
302
City
Pasadena
State
MD
Country
United States
Vehicle
2015 Challenger SRT Hellcat
Causation is not correlation. If you are logging the correct channels and the throttle body is opening at WOT then you are bleeding boost and the motor is failing. Can happen at any boost value above stock.
 


Speedy!

Infomercial Producer
Staff Team
Founding Member
U.S. Marine Veteran
9 Second Best E/T
HFCOTM & HFCOTY
Member ID
#1070
Messages
6,149
Reactions
15,751
Likes
402
City
Murfreesboro
State
TN
Country
United States
Vehicle
2016 Hellcat Go Man Go
He means bypass opening I think.

You can see in the logs if it's opening. Compare bypass voltage 1 and 2 I think they're called.

However a 2.5 upper and 10% lower should be more than 18 I think. My 2.72 upper stock lower was 16.
 


OP
D

Demid22

Active Member
Nurse
10 Second Best E/T
Member ID
#15014
Messages
221
Reactions
81
Likes
27
City
JONESBOROUGH
State
TN
Country
United States
Vehicle
2017 Dodge Challenger Hellcat
Thread Starter #143
Causation is not correlation. If you are logging the correct channels and the throttle body is opening at WOT then you are bleeding boost and the motor is failing. Can happen at any boost value above stock.
Yea...ure right. Got a link for wherr you got yours?
 


OP
D

Demid22

Active Member
Nurse
10 Second Best E/T
Member ID
#15014
Messages
221
Reactions
81
Likes
27
City
JONESBOROUGH
State
TN
Country
United States
Vehicle
2017 Dodge Challenger Hellcat
Thread Starter #144
He means bypass opening I think.

You can see in the logs if it's opening. Compare bypass voltage 1 and 2 I think they're called.

However a 2.5 upper and 10% lower should be more than 18 I think. My 2.72 upper stock lower was 16.
Im just 2.55 upper. Stock lower.
 


Jack_Toepfer

3000 Posts Club
Founding Member
Premium Account
Donating Member
Member ID
#966
Messages
3,343
Reactions
6,674
Likes
252
City
Buffalo
State
NY
Country
United States
Vehicle
2016 Dodge Charger Triple Black
From those pics I don’t see belt slip, at least not an abundant amount. If you wipe your finger around the thermostat housing does it come back black and cruddy? Doesn’t look like it would. Belt slip makes a mess.
 


vortecd

Poster Club Hall of Fame
Premium Account
Donating Member
9 Second Best E/T
HFCOTM
Member ID
#1248
Messages
49,305
Reactions
158,945
Likes
402
City
Middleville
State
MI
Country
United States
Vehicle
2016 Charger Hellcat
From those pics I don’t see belt slip, at least not an abundant amount. If you wipe your finger around the thermostat housing does it come back black and cruddy? Doesn’t look like it would. Belt slip makes a mess.
I have belt dust on mine just from wear from the pulley so it can be hard to measure that way. I had a pulley many years ago that was very aggressive and the 1st drive of 30 miles there was a ton of belt dust and I never got on it. It was like a cheese grater
 


Linda's Hell Cat

4000 Posts Club
Staff Team
Founding Member
Donating Member
9 Second Best E/T
Member ID
#972
Messages
4,671
Reactions
33,044
Likes
252
City
Bucks County
State
PA
Country
United States
Vehicle
2015 Charger Hellcat
the bypass valve can be a real mother bugger!
 


OP
D

Demid22

Active Member
Nurse
10 Second Best E/T
Member ID
#15014
Messages
221
Reactions
81
Likes
27
City
JONESBOROUGH
State
TN
Country
United States
Vehicle
2017 Dodge Challenger Hellcat
Thread Starter #148
Here are 3 logs ive also sent over to Jon.

Side note :Would the catless mids have anything to do with the boost being lower? I know headers do.
 


Attachments

vortecd

Poster Club Hall of Fame
Premium Account
Donating Member
9 Second Best E/T
HFCOTM
Member ID
#1248
Messages
49,305
Reactions
158,945
Likes
402
City
Middleville
State
MI
Country
United States
Vehicle
2016 Charger Hellcat
Here are 3 logs ive also sent over to Jon.

Side note :Would the catless mids have anything to do with the boost being lower? I know headers do.
I don't think mine showed lower boost with cat deletes back when I tried them stock. You will see a bigger difference in DA. If it is cold out the boost will read higher
 


Unholy707

5000 Posts Club
9 Second Best E/T
HFCOTM
Member ID
#11903
Messages
5,431
Reactions
4,493
Likes
402
City
Orlando
State
FL
Country
United States
Vehicle
2015 Dodge Challenger Hellcat
Hmm…
 


oilburner

500 Posts Club
Founding Member
9 Second Best E/T
Member ID
#1135
Messages
690
Reactions
1,744
Likes
132
City
coboconk
State
Non-US
Country
Canada
Vehicle
2016 challenger hellcat

Speedy!

Infomercial Producer
Staff Team
Founding Member
U.S. Marine Veteran
9 Second Best E/T
HFCOTM & HFCOTY
Member ID
#1070
Messages
6,149
Reactions
15,751
Likes
402
City
Murfreesboro
State
TN
Country
United States
Vehicle
2016 Hellcat Go Man Go
Those don't appear to be drag strip logs. Can't compare apples and orange :)
 


vortecd

Poster Club Hall of Fame
Premium Account
Donating Member
9 Second Best E/T
HFCOTM
Member ID
#1248
Messages
49,305
Reactions
158,945
Likes
402
City
Middleville
State
MI
Country
United States
Vehicle
2016 Charger Hellcat
Those don't appear to be drag strip logs. Can't compare apples and orange :)
you can but I would rather have blue berries:p
 


Jack_Toepfer

3000 Posts Club
Founding Member
Premium Account
Donating Member
Member ID
#966
Messages
3,343
Reactions
6,674
Likes
252
City
Buffalo
State
NY
Country
United States
Vehicle
2016 Dodge Charger Triple Black
I have belt dust on mine just from wear from the pulley so it can be hard to measure that way. I had a pulley many years ago that was very aggressive and the 1st drive of 30 miles there was a ton of belt dust and I never got on it. It was like a cheese grater
I agree, that’s usually a finer dust. With griptec pulleys they usually make bigger chunks, right?
 


OP
D

Demid22

Active Member
Nurse
10 Second Best E/T
Member ID
#15014
Messages
221
Reactions
81
Likes
27
City
JONESBOROUGH
State
TN
Country
United States
Vehicle
2017 Dodge Challenger Hellcat
Thread Starter #155
Those don't appear to be drag strip logs. Can't compare apples and orange :)
Correct itll be weeks before im back at the track
 


Jon-MooredPerformanceLLC

Active Member
Vendor
Member ID
#12838
Messages
271
Reactions
964
Likes
117
City
Martin
State
MI
Country
United States
Vehicle
2018 Dodge Challenger Hellcat
Well log to was showing a lot of knock. Also one of the logs showed fuel trims from bank 1 and 2 were way off. Also at wot fuel trims are pretty rich and need straightened out but I doubt before signing off I didnt have them dialed in closer. The fuel you are using is good e85? I need to send another list so we can see what each injector is doing individually. From what I see you arent hitting injector pulse limit but your duty cycle is 75 %. I will email you another list I thought I sent you this list last time but I guess not.
 


OP
D

Demid22

Active Member
Nurse
10 Second Best E/T
Member ID
#15014
Messages
221
Reactions
81
Likes
27
City
JONESBOROUGH
State
TN
Country
United States
Vehicle
2017 Dodge Challenger Hellcat
Thread Starter #157
Well log to was showing a lot of knock. Also one of the logs showed fuel trims from bank 1 and 2 were way off. Also at wot fuel trims are pretty rich and need straightened out but I doubt before signing off I didnt have them dialed in closer. The fuel you are using is good e85? I need to send another list so we can see what each injector is doing individually. From what I see you arent hitting injector pulse limit but your duty cycle is 75 %. I will email you another list I thought I sent you this list last time but I guess not.
I loaded the list you sent me. Fuel is testing out betweem the 80 and 85 mark. So E82. 5? Lol
 


Jon-MooredPerformanceLLC

Active Member
Vendor
Member ID
#12838
Messages
271
Reactions
964
Likes
117
City
Martin
State
MI
Country
United States
Vehicle
2018 Dodge Challenger Hellcat
I loaded the list you sent me. Fuel is testing out betweem the 80 and 85 mark. So E82. 5? Lol
Ya thats not going to cause what im seeing here. Really need to see each injector. Maybe there is a dirty injector. Been having that a lot this year.
 


OP
D

Demid22

Active Member
Nurse
10 Second Best E/T
Member ID
#15014
Messages
221
Reactions
81
Likes
27
City
JONESBOROUGH
State
TN
Country
United States
Vehicle
2017 Dodge Challenger Hellcat
Thread Starter #159
On the road today with fiance for her first cruise. Ill be back 15th. Will load up the new list and log
 


OP
D

Demid22

Active Member
Nurse
10 Second Best E/T
Member ID
#15014
Messages
221
Reactions
81
Likes
27
City
JONESBOROUGH
State
TN
Country
United States
Vehicle
2017 Dodge Challenger Hellcat
Thread Starter #160
Another 1/8 mile run. This track was less sketchy than the other one I posted. Ill be going back here.

 




Top