Working Hours
  • Mon 8:00AM - 5:30PM
    Tue 8:00AM - 5:30PM
  • Wed 8:00AM - 5:30PM
    Thu 8:00AM - 5:30PM
  • Fri 8:00AM - 5:30PM
    Sat 8:00AM - 12:00PM
  • Sun Closed
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419-782-7827 | 1735 Spruce St

Carbureted & EFI For Increasing Performance

Carbureted & EFI For Increasing Performance, Defiance, OH

Carbureted & EFI For Increasing Performance

High-Performance EFI Auto Repair in Defiance

The expert mechanics at Northwest Automotive LLC know switching to fuel injection often improves the fuel efficiency and performance of older carbureted engines. In newer cars, replacing a single fuel injector with a multi-port fuel injector creates an intense, even flow of fuel on each cylinder when your engine needs it most. Feed your engine the fuel it needs with fuel pumps, fuel filters, superchargers, and turbochargers. Break out of gasoline only feed engines by adding a nitrous kit or cooling methanol injection kit.

To ensure the correct air to fuel ratio, Northwest Automotive LLC can add a new stock-height replacement intake manifold, cold air intake, and fuel rails. Never run rich or lean with a hood scoop, high-performance air filter, and new O2 sensor. Call Northwest Automotive LLC and talk to us about increasing your car's performance. When you want performance you need the auto repair experts at Northwest Automotive LLC located at 1735 Spruce St.

If you're ready to take your car or truck's fuel injection to the next level, Northwest Automotive LLC is ready with injectors, manifolds, fuel rails, sensors, and complete performance EFI conversion kits. From BMW to Audi to Corvette, Northwest Automotive LLC has you covered.

Tuning Old School Carburetors For True Muscle

Your muscle car may be starving for air! Bring it to Northwest Automotive LLC and find out. Because of operating losses in the intake runner and cylinder with newer unleaded fuels that do not fully vaporize in the combustion chamber, cars tuned to the manufacturer's specifications can run lean. Northwest Automotive LLC can diagnose if you are actually running leaner than the manufacturer suggested ratio of 14.7:1 air to fuel mixture. Bring your classic car to Northwest Automotive LLC at 1735 Spruce St to tune the perfect air to fuel mixture and correct ignition spark for maximum power.

Need to replace your old four-barrel carburetors or hack your hood with tunnel rams? Northwest Automotive LLC will help you choose the Holley, Edelbrock, Barry Grant, or Quick Fuel carburetor and air intake system that is right for your car. Call us today at 419-782-7827!

NAPA Service Assistant


What Our Customers Are Saying

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Highly recommend for any engine work or under the hood repairs!! Also I was in and out in 20 minutes today for an oil change!

, 02/03/2020

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Early Saturday morning, we were heading home to Minnesota and our car started making grinding noises. Called Tim and he said bring it in. Discovered we needed a new air conditioner compressor and he installed it and had us back on the road right away. It was a 12 hour drive home and we felt happy, cool and comfortable. Thanks Tim!

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Extremely trustworthy and knowledgeable, with fair rates. Absolutely recommend this shop! You won't be disappointed.

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My family has always gone to Northwest Automotive. We enjoy their great work, great deals, and friendly staff. I needed an alternator on an emergency. The shop owner found me an alternator after hours and willingly installed it to get us back on the road at a reasonable price. Always my first choice when recommending professional automotive repair.

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Thanks so much for making our car safe, and doing it for an afforadable price.

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Great service!

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The guys here are awesome! The fuel pump in my 99 Firebird went bad. They had my car towed to their place, diagnosed the problem, and had the fuel pump and the serpentine belt fixed within a few days. Will be recommending this place to all my family and friends!

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My daughter's car was making a horrible clacking noise from the engine. I trailered it to Northwest Automotive, and they took one listen and knew it was mechanical in nature. The worked really hard to quote a good price, find a used engine, and even offered to arrange financing. We chose not to repair the car at this time, and they didn't charge us for the effort they put in. I would definitely recommend these guys for any auto repair need.

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My experience at Northwest Automotive has always been good. They have always gotten me in quickly and fixed whatever I needed for a reasonable price! I would definitely recommend doing business there. Specializing in engine repairs and all your other needs!

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Our van's check engine light came on Friday evening. We planned to leave Sunday after church for vacation. So, Saturday morning I call up Northwest Automotive to see if they could fit me in. They said come on in. When I arrived, they ran the standard diagnostic test to find what tripped the light. It turned out to be an extremely simple fix, and they had me back on the road in 10 minutes, which was fantastic because I had two toddlers in tow. The best part? They charged me nothing! At dealerships, I've paid $50+ for them just to run this test.

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Great service and great guys that know what they're doing. And, they get it done fast and right!

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Awesome work! These guys know automobiles and have all the professional tools to do any job, big or small. Take your vehicle in or give them a call. OUTSTANDING WORK!

  • AERA (Automotive Engine Rebuilders Association)
  • ASE Certified - Automotive Service Excellence
  • BBB Accredited Business
  • NAPA AutoCare Center
  • Jasper Engines & Transmissions
  • Mobile Air Conditioning Society
  • WIX Filters
  • ALL-DATA
  • IDENTIFIX
  • UNOH Alumni - University of Northwestern Ohio
  • Defiance Ohio Police
  • Car Care Aware
  • Call Us For Service: 419-782-7827