JMRacing
Portland based Dyno Tuning & Wiring.
04/12/2026
Freshly built Supra in for a custom engine harness paired with an EMU Pro 8.
Proper wiring and electronics made the break-in tuning go smoothly. Always a good sign when everything works right out of the gate.
Looking forward to having it back on E85 and seeing what it puts down 🔥
04/04/2026
Take your SR to the next level with our complete management package.
Full details and purchase available at our website in bio
03/19/2026
Installed & wired in some additional sensors before the flex tune on this S13. Swipe to see the graphs ->
Stock internal SR20DET
Garrett 2871R
17psi Pump gas
19psi E60 Blend
Beautifully done S13 putting down power on our Mainline 🔥
Built SR20DET
G25-550
E85
02/16/2026
This was a fun one 🔥 motorsport-grade engine and chassis harness for an SR20 powered R32 Skyline.
•ECUMaster EMU Pro 8
•ECUMaster PMU-24DL
•Haltech UC-10
Concentric twisted tefzel wire loomed with Raychem DR25 and sealed with epoxied heat molded boots. Built for reliability under any conditions.
01/19/2026
Engine loom for a fully built SR20 running an EMU PRO. We took full advantage of the ECU’s extensive I/O and designed a harness engineered for reliability, serviceability, and real-world abuse.
Purpose built, motorsport grade, and ready for anything.
DM/Email for your custom wiring harness needs!
G80 M3 Comp laying down some power with a custom Flex Fuel tune 🔥
01/09/2026
725whp S58 MHD+ Flex Fuel Custom Tune by on our Mainline Prohub Dyno.
Smooth, Strong, Repeatable. Book your session and level up your BMW
01/08/2026
2JZ-GE VVTi swap harness for an EMU Black–equipped 4Runner heading out the door!
Got a unique swap or ECU setup? Let us handle the wiring so you can focus on enjoying the build. Modern electronics, old chassis, done right.
01/03/2026
G80 M3 Competition MHD+ Flex Fuel custom calibration completed by
The S58 platform demands more than an off-the-shelf approach. Bend Calibration’s expertise paired with the precision of our Mainline Hub Dyno results in power you can trust from one of BMW’s most advanced M platforms.
No shortcuts. No generic maps.
The gold standard for S58 tuning.
📍 Portland, OR
12/29/2025
2JZ GT86 Flex Fuel tuned on EMU Black V3. 🔥
462whp 17psi 92oct / 601whp 23psi E85
Click here to claim your Sponsored Listing.
Category
Contact the business
Website
Address
97086-97299