JimTune Custom Tuning and Auto Service
DIAGNOSTICS / TUNING / REPAIR
JIMTUNE
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        • External link opens in new tab or window512-222-8863
        • External link opens in new tab or window1651 S US Hwy 281 Hamilton, TX 76531

        JIMTUNE is conveniently located just over an hour from Waco and Temple, and 1.5 hours from the Austin area. Hamilton Municipal Airport is located right across the highway, and free shuttle service to and from the airport is provided.  External link opens in new tab or windowKMNZ has a 5000 foot runway, large enough to handle any small to medium aircraft.


        JIMTUNE is open on Saturdays by appointment only.

        ELECTRICAL SYSTEMS

        JIMTUNE not only specializes in electrical diagnosis and repair, but we also design custom sub harnesses, as well as complete EFI, chassis and all control systems harnesses.  There is no project or problem too large or too small.  From field mouse harness damage, to complete wiring for a show car, JimTune not only has you covered in being able and qualified to do the work, but we stock most of the parts needed to build or repair any harness on many makes and models.  More than likely, if you have a wiring need on any electrical system, we have what is needed or can make it, using better than OEM quality wire and components.


        • FUSES, CIRCUIT BREAKERS AND HOLDERS
        • WIRING AND WIRE PROTECTION
        • RELAYS AND HOLDERS
        • FUSE BLOCKS
        • PLAIN OLD ELECTRICAL REPAIR, BETTER THAN OEM
        • CUSTOM DESIGNED  EFI, TRANSMISSION CONTROL, CHASSIS CONTROL HARNESSES


        + SOME OF THE ELECTRICAL SERVICES WE PROVIDE: 


        • Electrical Troubleshooting and Repair (typical failures from age, design, collision and mouse damage)
        • Custom and Stocking Common Sub-Harnesses (cooling fans, fuel pumps, extra lighting, etc. )
        • Gauge Wiring (We sell and Install Dakota Digital Products)
        • Custom HVAC wiring
        • Custom EFI and Transmission Wiring (wiring diagrams included)
        • Custom Chassis Wiring (wiring diagrams included)
        • RV and Motorhome Wiring and Repair
        • Trailer Wiring and Repair
        • Custom Lighting
        • Equipment Wiring


        -  JimTune can wire anything you need!  Feel free to contact us with any questions !  512-222-8863


        https://0201.nccdn.net/4_2/000/000/008/486/corvettesupercharger1.jpg
        Jim, I just wanted to update you on my car since the tune. As for fuel mileage props to ya on that one Im doing better than I was stock. I drove the car from Stillwater to Coffeyville then to work everyday for a week with some added stuff inthe evening when I took some of the interns for a ride. So I would say spirited driving with 3 or 4 runs to 100 and a big burnout. For that tank I got 18.3mpg. Then I checked it once driving from Coffeyville to Stillwater not driving easy by any means and running mostly 75 and 80 and got 23 mpg. Then had a week of mixed highway and in town without much full throttle but still driving the car pretty decent and got 21.8. So great mileage and thanks again. Drew W. 1996 Camaro LT1 M6 JIMTUNE Cam, Ported STK Heads, JIMTUNE Programming
        Jim, I just wanted to update you on my car since the tune. As for fuel mileage props to ya on that one Im doing better than I was stock. I drove the car from Stillwater to Coffeyville then to work everyday for a week with some added stuff inthe evening when I took some of the interns for a ride. So I would say spirited driving with 3 or 4 runs to 100 and a big burnout. For that tank I got 18.3mpg. Then I checked it once driving from Coffeyville to Stillwater not driving easy by any means and running mostly 75 and 80 and got 23 mpg. Then had a week of mixed highway and in town without much full throttle but still driving the car pretty decent and got 21.8. So great mileage and thanks again. Drew W. 1996 Camaro LT1 M6 JIMTUNE Cam, Ported STK Heads, JIMTUNE Programming
        https://0201.nccdn.net/4_2/000/000/064/d40/drysumppump.jpg
        Hey Jim, I just wanted to say Thank You for all the work you've done on the Mustang! It's an amazing change from the canned tune that was on there when I bought it. You're suggestions on basic improvements to the ProCharger setup and upfront explanation of costs made this a great experience. The car runs amazing, and I sincerely appreciate your standing behind your work and re-tweaking the tune. The car is great on a daily commute, and a beast when I get on it. Much more linear and smooth through the pulls. It's been 10 years since I had a "Mechanic", someone I could call if I had questions and who is also able and willing to tackle anything I throw at them. It's not easy to find a shop or person like that anymore, but you are the man! Can't wait to get this thing on a Dyno and see what numbers it's putting down this summer. Given my addiction for reliable power, I'm sure we will have plenty of projects in the future. Thanks, -Chip '05 Mustang GT ProCharger P1SC @ 14 PSI pulley GT500 Fuel Pumps SCT by Jimtune -460rwhp with all stock exhaust, 100* ambient- -DAILY FLOGGED-
        Hey Jim, I just wanted to say Thank You for all the work you've done on the Mustang! It's an amazing change from the canned tune that was on there when I bought it. You're suggestions on basic improvements to the ProCharger setup and upfront explanation of costs made this a great experience. The car runs amazing, and I sincerely appreciate your standing behind your work and re-tweaking the tune. The car is great on a daily commute, and a beast when I get on it. Much more linear and smooth through the pulls. It's been 10 years since I had a "Mechanic", someone I could call if I had questions and who is also able and willing to tackle anything I throw at them. It's not easy to find a shop or person like that anymore, but you are the man! Can't wait to get this thing on a Dyno and see what numbers it's putting down this summer. Given my addiction for reliable power, I'm sure we will have plenty of projects in the future. Thanks, -Chip '05 Mustang GT ProCharger P1SC @ 14 PSI pulley GT500 Fuel Pumps SCT by Jimtune -460rwhp with all stock exhaust, 100* ambient- -DAILY FLOGGED-
        https://0201.nccdn.net/1_2/000/000/199/8d5/ford9.jpg
        https://0201.nccdn.net/1_2/000/000/10e/14d/yelc5rr.jpg
        https://0201.nccdn.net/1_2/000/000/0ac/396/drysumppan.jpg
        https://0201.nccdn.net/4_2/000/000/008/486/corvettesupercharger1.jpg
        Jim, I just wanted to update you on my car since the tune. As for fuel mileage props to ya on that one Im doing better than I was stock. I drove the car from Stillwater to Coffeyville then to work everyday for a week with some added stuff inthe evening when I took some of the interns for a ride. So I would say spirited driving with 3 or 4 runs to 100 and a big burnout. For that tank I got 18.3mpg. Then I checked it once driving from Coffeyville to Stillwater not driving easy by any means and running mostly 75 and 80 and got 23 mpg. Then had a week of mixed highway and in town without much full throttle but still driving the car pretty decent and got 21.8. So great mileage and thanks again. Drew W. 1996 Camaro LT1 M6 JIMTUNE Cam, Ported STK Heads, JIMTUNE Programming
        Jim, I just wanted to update you on my car since the tune. As for fuel mileage props to ya on that one Im doing better than I was stock. I drove the car from Stillwater to Coffeyville then to work everyday for a week with some added stuff inthe evening when I took some of the interns for a ride. So I would say spirited driving with 3 or 4 runs to 100 and a big burnout. For that tank I got 18.3mpg. Then I checked it once driving from Coffeyville to Stillwater not driving easy by any means and running mostly 75 and 80 and got 23 mpg. Then had a week of mixed highway and in town without much full throttle but still driving the car pretty decent and got 21.8. So great mileage and thanks again. Drew W. 1996 Camaro LT1 M6 JIMTUNE Cam, Ported STK Heads, JIMTUNE Programming

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        1651 S US Hwy 281

        Hamilton, TX

        76531

        512-222-TUNE

        254-784-8863

        Monday through Friday from 8:00 AM to 5:00PM


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