Tapout Tuning

LF4 Performance Tuning Specialists

  • Home
  • Products
    • Product Search
    • Specials
    • Cadillac CT4-V Blackwing (2022 – 2023)
      • Performance Packages
      • Tuning Services
      • Tuning Products
      • Induction System
      • Fuel System
      • Ignition System
      • Electronics
      • Engine Components
      • Exhaust System
      • Gaskets, Seals & Filters
      • Drivetrain
      • Suspension & Brakes
      • Appearance
    • Cadillac CT5-V Blackwing (2022 – 2023)
      • Tuning Products
      • Induction System
      • Ignition System
      • Electronics
      • Exhaust System
      • Suspension & Brakes
      • Appearance
    • Cadillac ATS-V (2016 – 2019)
      • Performance Packages
      • Tuning Services
      • Tuning Products
      • Induction System
      • Fuel System
      • Ignition System
      • Electronics
      • Engine Components
      • Exhaust System
      • Gaskets, Seals & Filters
      • Drivetrain
      • Suspension and Brakes
      • Appearance
      • Garage Sale
    • Cadillac CT4/CT4-V (2021+)
      • Tuning Products
      • Suspension & Brakes
    • Cadillac CT5/CT5-V (2020 – 2023)
      • Tuning Products
      • Induction System
      • Suspension & Brakes
    • Cadillac CTS-V (2016 – 2019)
      • Tuning Products
      • Electronics
      • Drivetrain
      • Suspension and Brakes
    • Cadillac CTS-V Sport (2014 – 2019)
      • Performance Packages
      • Tuning Services
      • Tuning Products
      • Induction System
      • Fuel System
      • Ignition System
      • Electronics
      • Engine
      • Exhaust System
      • Gaskets, Seals and Filters
      • Drivetrain
      • Suspension and Brakes
    • Chevrolet Camaro (2016 – 2022)
      • Tuning Products
      • Electronics
      • Drivetrain
      • Suspension and Brakes
    • Chevrolet SS (2016 – 2017)
      • Tuning Products
      • Drivetrain
      • Suspension and Brakes
    • Pontiac G8 (2008 – 2009)
      • Tuning Products
      • Drivetrain
      • Suspension and Brakes
    • Stickers & Apparel
    • Garage Sale
    • Custom Order
    • Discounts
      • Active Military, Veteran, First Responder and Jiu-Jitsu Practitioner Discount
      • Competitive Tune Discount
    • Cart
  • Installation & Service
  • Testimonials
  • Dyno Charts
  • Rankings
    • LF4 Dyno Rankings
    • CT4-V Blackwing Dyno Rankings
    • 60 to 130 MPH Rankings
    • Quarter Mile Rankings
    • True Street Rankings
    • Eighth Mile Rankings
  • FAQ
    • CT4-V Blackwing FAQ
    • ATS-V FAQ
  • Contact
    • How to Select a Tuner for your ATS-V
    • Account
    • Log In
  • Current News
  • (614) 504-6024 – ¡Se habla Español!
  • 0 items

April 15, 2020 By mrntd

Do other companies know how to tune ATS-Vs?

Some do, but most don’t.  About once per week someone converts from another tuner to Tapout.  Some times we’re fortunate enough to get scan data before they flash back to stock and we start our remote tune process.  Here’s a screen shot we received on Sunday, April 12.

Trifecta data scan

In the first section of the scan, the yellow trace shows that the car was not holding correct or even safe rail pressure.  Even though this particular tuner does a wonderful job marketing a full array of fancy acronyms like Active Rail Pressure  Management, the facts show that their tune does not hold rail pressure.  Where the cursor was in the scan at 114 mph they were commanding 2,611 psi, but only had 1,739 psi.  This is extremely dangerous for the customer.  And it’s incredibly dishonest marketing by the other tuner.

In the second section of the scan, the green trace shows actual throttle position.  Even though the customer held his foot on the floor, his throttle position ranged from 55% to 100% throughout the pull.

In the fourth section of the scan, the red trace shows that he had constant knock retard.  This means that he either wasn’t running enough octane for the current tune, or they didn’t properly tune his car for the octane level he runs.  This screen shot shows his average knock retard for the entire scan.  Pretty scary stuff!

Trifecta average knock retard table

Looking at his LTFTs (long-term fuel trims) provides a clue regarding how well the current tune matches his intake system.  OEM calibrations are typically in the +/-10% range.  We like to see +/-5% in Tapout tunes.  Yet his fuel trims were off by nearly 20%!

Trifecta long term fuel trims table

We would never run this tune in our own cars.  In fact, we’re pretty sure that not many others would feel comfortable running this tune.

Filed Under: Special Stories

  • Who is Tapout Tuning?
  • Active Military, Veteran, First Responder and Jiu-Jitsu Practitioner Discount
  • Competitive Tune Discount
  • Blog
  • Recommended Shops
  • ATS-V Gallery
  • Privacy Policy
  • Terms
  • Cart
  • Log In
  • Account
  • Installation Instructions
  • Videos
  • Installation & Service

Follow Us

  • Facebook
  • Instagram
  • LinkedIn
  • Pinterest
  • YouTube
  • Cadillac Forum
  • Messenger
  • V-Club

Copyright © 2023 · Tapout Tuning L.L.C. · All other logos are the property of their respective owners
8430 Estates Court, Plain City, OH 43064 · (614)504-6024 · Sales@TapoutTuning.com