Truck Norris Tuning for GM LS/LT based platforms
Does the Truck Norris Cam require tuning?
The short answer is yes, the Truck Norris cam does require tuning. Without tuning, your vehicle may throw a check engine light, and not run properly. There are several things that need to change in the tuning when you change a cam – such as misfire counts, timing, fueling, spark, rev limiters, and much more. We also need to adjust the idle airflow and timing to help the vehicle idle properly with the new cam. A larger aftermarket cam will bring in more airflow and this needs to be accounted for. If you have added mods such as a Truck Norris Camshaft, there are many tuning changes that need to be made to help the vehicle run to its full potential. Other parameters we modify include power enrichment, speed/rev limiters, transient modifiers, transmission upshifts & downshifts, torque management, and much more.
The Truck Norris cam is a popular truck cam, with 212/22x duration at .050″, .552″/.552″ lift, and a 107 LSA for Gen-III & IV engines, and now also available for Gen-V LT engines with specs of 21X/22X, .540″/.540″, 111 LSA, 14% fuel lobe.
PCM of NC supports most all GM LS/LT based platforms. We do not offer Dodge/Hemi tuning.
How can I obtain the tuning for my Truck Norris cam install?
If you are local to us, please give us a call and we can get this handled in person for you. We tune with HP tuners software. If you need tuning but you are not in our area, we would be glad to assist remotely. We have a couple ways of obtaining our tuning;
With mail order tuning, you send in your module(s) to us, we tune them based on your order sheet, and ship them back. For certain vehicles, we offer core or loaner programs, where we send a module to you (available programs). Some vehicles have an ECM that controls both engine and transmission, and some will have a separate transmission control module that only controls transmission functions. Most of our listings mention this but if you are unsure, contact us first.
If you have HP tuners, we can do your tuning via email. You start by emailing us your stock file, and then we tune it and email it back. You then use our supplied configuration file to log the correct channels, and send it to us. We create an updated file and email it back, and we repeat this process until the tuner signs off on it. The costs of these different options vary. You can check out our pricing here – Mail Order Tuning or give us a call for more assistance.
Common Mail Order Tuning Questions
Is an ECM the same thing as a PCM?
Yes, ECM (engine control module) and PCM (powertrain control module) refer to the same thing. The industry generally uses the terms interchangeably.
Can I still drive my vehicle if I send in my computer for tuning?
No, the vehicle will not run without the ECM and/or TCM.
How fast is the turnaround if I send in my ECM?
Depending on workload, we typically process most mail order tuning within 24 hours. The header on our website is updated with current lead times. We are available Monday-Friday. We are closed on weekends and for major holidays. A note on couriers – UPS typically delivers to us in the morning. Fed Ex comes mid afternoon, and USPS doesn’t usually arrive until 4pm. If you are needing expedited turnaround please use UPS to get your module(s) here.
I can’t be without my vehicle but I don’t have HP tuners. How can I still obtain a mail order tune?
For some vehicles, we offer a core and a loaner program. With the core program, we send you a tuned core PCM (and TCM if applicable). We start by using GM software to program your vehicle’s VIN & calibration, and then tune that file with HP tuners. Once you receive the core, you may send yours in back for the core refund (only if it is reusable), or retain both modules. If you choose to send in your stock PCM/TCM for the core refund, it must be postmarked with seven days of receiving the tuned PCM. The core program requires a CASE relearn and security relearn also. Our loaner program sends you a stock PCM/TCM to borrow so that you can send in yours for programming. When we receive your PCM, we tune it and return it to you, and then you send in the loaner for the core refund. The loaner PCM may need a security relearn, but there are no CASE relearns required. NOTE: Expedited shipping on loaner programs only covers one shipment. To upgrade both shipments to express, please contact us!
How do I know if I have a separate TCM?
If you have a gen III LS controller (large silver box with two long connectors), the engine and transmission tuning will be controlled by the same unit. For a Gen IV controller (E40, E67, E38 etc) you will have a separate transmission controller (TCM). If you don’t know if you have a separate TCM or not, please ask before mailing. 4l60e/4l70e have removable T42 transmission control modules. 6l80e transmissions use a T43 which is part of the valvebody. 6l80e tuning is only available via HP tuners or in person for that reason. Gen V 2017+ transmissions can be six, eight, or ten speed – some 8/10 speeds can be unlocked and tuned, some cannot, please reach out individually for information on these.
I don’t see my vehicle on your list. Can you tune it?
If you don’t see your vehicle listed, you are welcome to chat, call or email sales@pcmofnc.com to ask if we can support it. For the most part if we can support it, it is already listed on the site, but there are a few exceptions. We do not currently support anything besides GM.
How does the remote tuning with HP tuners work?
We have an in-depth FAQ about email tuning here – Remote (Email) Tuning with HP tuners.
Do you do segment swaps?
We do not do segment swaps for 4l80es. We do however offer a plug and play harness for swaps that does not require it – 4l80e Swap Harness.
