• 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!


Importance of a good tune

Jon-MooredPerformanceLLC

Active Member
Vendor
Member ID
#12838
Messages
267
Reactions
927
Likes
117
City
Martin
State
MI
Country
United States
Vehicle
2018 Dodge Challenger Hellcat
#1
Let’s talk about reliability tunes and tunes that provide safety and at the same time results at the track. These screenshots are not one of them. This car had a simple pulley combo which should have lived a happy life. Instead its transmission went out and engine blew up from this tune. He finally said enough was enough and we are now retuning his car to not only be safer but it will be faster. This is not the first time a customer has called us and the file we are sent looks similar to this.

If your tune looks anything like this reach out for a retune!

First up here is the timing table. We like to see these smooth. This thing has a lot of up and downs and steep transitions. But this isn’t the worst part of the tune

tw.png



Next up the customer said he wanted a safe reliable tune. Well the knock sensors were disabled maxing them out at 5V

ks.jpg

Oncoming Clutch Pressure are lowered. These are important to not burn up transmisstions. These provide nice firm shifts and should be raised especially in a modded vehicle.
oc.png
 


hellno

3000 Posts Club
8 Second Best E/T
HFCOTM
Member ID
#1308
Messages
3,309
Reactions
5,754
Likes
302
City
memphis
State
TN
Country
United States
Vehicle
2016 challenger hellcat
#2
We no need no stinking trans tune
 


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
#3
I tried to model my timing table like the factory engineers curve, just raised in all points possible. The 3d graph feature of HP Tuners is underutilized for sanity checks.
 


OP
Jon-MooredPerformanceLLC

Jon-MooredPerformanceLLC

Active Member
Vendor
Member ID
#12838
Messages
267
Reactions
927
Likes
117
City
Martin
State
MI
Country
United States
Vehicle
2018 Dodge Challenger Hellcat
Thread Starter #4
I tried to model my timing table like the factory engineers curve, just raised in all points possible. The 3d graph feature of HP Tuners is underutilized for sanity checks.
Don't get me wrong it doesn't have to be perfect and they can be shaped slightly different. Even factory isnt perfectly smooth. But it doesnt have to be. You just don't want the pic above.
 


hellno

3000 Posts Club
8 Second Best E/T
HFCOTM
Member ID
#1308
Messages
3,309
Reactions
5,754
Likes
302
City
memphis
State
TN
Country
United States
Vehicle
2016 challenger hellcat
#5
Oh hell my timing table is 0 at idle (750rpm) then it’s goes to 23 all the way to redline , it’s how we go so fast
 


OP
Jon-MooredPerformanceLLC

Jon-MooredPerformanceLLC

Active Member
Vendor
Member ID
#12838
Messages
267
Reactions
927
Likes
117
City
Martin
State
MI
Country
United States
Vehicle
2018 Dodge Challenger Hellcat
Thread Starter #6
Oh hell my timing table is 0 at idle (750rpm) then it’s goes to 23 all the way to redline , it’s how we go so fast
0 at idle? I Hope not :ROFLMAO:
 


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
#7
Oh hell my timing table is 0 at idle (750rpm) then it’s goes to 23 all the way to redline , it’s how we go so fast
LOL these came to mind
1678819958380.png

and then:
1678820023152.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
#8
Interesting.
 


Hatermkr

1000 Posts Club
Firefighter
8 Second Best E/T
HFCOTM & HFCOTY
Member ID
#15491
Messages
1,279
Reactions
2,643
Likes
212
City
West bend
State
WI
Country
United States
Vehicle
2016 helldemon
#9
This is how you let it eat 🤪
 


DavidKFla

Poster Club Hall of Fame
Premium Account
U.S. Air Force Veteran
10 Second Best E/T
HFCOTM
Member ID
#6741
Messages
27,598
Reactions
124,989
Likes
402
City
East Coast
State
FL
Country
United States
Vehicle
2018 Charger Hellcat
#10
Let’s talk about reliability tunes and tunes that provide safety and at the same time results at the track. These screenshots are not one of them. This car had a simple pulley combo which should have lived a happy life. Instead its transmission went out and engine blew up from this tune. He finally said enough was enough and we are now retuning his car to not only be safer but it will be faster. This is not the first time a customer has called us and the file we are sent looks similar to this.

If your tune looks anything like this reach out for a retune!

First up here is the timing table. We like to see these smooth. This thing has a lot of up and downs and steep transitions. But this isn’t the worst part of the tune

View attachment 100394



Next up the customer said he wanted a safe reliable tune. Well the knock sensors were disabled maxing them out at 5V

View attachment 100395

Oncoming Clutch Pressure are lowered. These are important to not burn up transmisstions. These provide nice firm shifts and should be raised especially in a modded vehicle.
View attachment 100396
Using my original tune?
 




Top