What is an Etune and how does it work?

E-tune : AKA Etuning is to create a custom ECU/EMS calibration/map for a modified engine/car through the internet (from a remote location). The initial “base map” is created based on your exact build details, engine mods and fuel type. You can submit your build details/mods to our FREE online Etune Database. Once you have the base map loaded to the ECU you will start recording data logs. These data logs are then sent through email to the tuner who will analyze the data and email an updated calibration/map back to the customer/car with changes based on the data logs. 

Here is a list of links to our most popular ECU Tuning services we offer for Motorsports top tier ECU manufactures:

Velocity Element RB26 turbo manifold dyno testing

E-tuning has opened up opportunities for people in remote places without any local “tuner” to build the car of their dreams and have it professionally tuned starting at $200. Over the past 15 years Etuning has become increasingly popular with our customers both international and domestic. Brewed Motorsports offers Etune support for just about every ECU or EMS on the market including: Motec, AEM, Haltech, Hondata, Cobb and many more. Now more than ever we are tuning cars for customers looking to get more performance than their local shop or tuner is able to provide. If you want the absolute most out of your build we are here to make that happen.

Here is a good example from one of our Brewedtuned RB26 customers that hit the dyno to compare the real world roller dyno reading with our Virtual Dyno results from Etuning. The results from Virtual Dyno and the roller dyno used were extremely consistent and the car has been making over 600 hp at the crank with only 19-20psi for the past 7+ years. Not only does this car see regular street time in Europe it also crushes super cars at the local circuit on the weekends! ***this is a stock block N1 RB26 with OEM nissan pistons/rods/bearings and crank.***

Nissan R32 GTR Skyline:

Wheels 18×10” (not the lightest wheel/tire combo but good match for this particular GTR)
Stock Block/stock head with 264 cams
ID 1000cc injectors
AEM series 2 EMS Brewed tuned
AEM in tank fuel pump **wired to 30amp relay**
Velocity Element dual knock sensor kit
Velocity Element T4 twin scroll turbo manifold
S362 FMW turbo

Tuned by Brewed

If you need help getting your ECU or EMS set up with a custom Base Map and E-tune or your current tune needs some love in check out our E-tune options and feel free to contact us any time. Not sure what ECU you need? No problem we tune just about everything and our team is happy to discuss all tuning options available for your application to ensure the best results. We offer a wide selection or plug n play Motorsports friendly ECU options just about ever engine package you can dream up. 

2 R34 GT-R’s both running our Plug n Play AEM Infinity ECU package. Purple car is on a Tomei 2.8L stroker and the grey car is on a fresh OEM rebuild. These are both customer cars located in South Korea. 

Helpful tuning links:

2 thoughts on “Etune ECU and EMS Etuning Explained

  1. Changjun Lee says:

    I’m in korea now. But i cant trust here’s tuner. So i want to remote tuning. 
    How much cost?

    First my supra spec 

    97 mk4 supra 

    2jz vvti

    V161  final 3.23

    Stock bottom end

    Kelford 264 272 cam (arp headstud)

    Valvespring supertech

    Valveseal supertech

    1000cc id injectors

    Gtr35 coil with prp bracket

    Greddy pro intake manifold

    Greddy fuel rail

    Greddy bundle 100mm throtlebody ( intercooler out size 90mm)

    Upgraded intercooler (i dont know correct spec)

    Phr gen2 race engine breather kit

    Phr racing radiator( with phr thermostart)

    Preceision 6466 dual ball bearing (ar 1.0 when i know)

    Bosch044 fuel pump

    Link g4+ kurofune (wiring with stock 2jz ge ecu)

    Link 3bar map sensor

    Now my car can drive and 601 hp on dyno.

    But i cant believe located shop map and idle is hunting now. I think They cant catch idle. 

    All thing is working. 

    Unknown manifold ( looks like ebay)

    Precision 6466 dual ball bearing

    Phr oil feed

    Phr turbo oil drain kit

    Phr billet adjustable locking camgear (now adjust 116degree exhaust.) 

    Phr intake kit for 6466 turbo

    Unknow headers. 

    Downpipe will 3 or 3.5 

    Exhaust Straight pipe

    Turbosmart wastegate (unknown mm, spring rate)

    Hks feul regurator

    I need street car. I want stable idle

    • Eric_Brewed says:

      Hey Mr. Lee

      Yes we offer remote Etune as well as in person tuning. If you would like to schedule a tune with us please simply respond to my email. (I replied to your request last week.)
      If you have any other questions or requests feel free to contact us any time.

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