IM Engine Tuning and Building


     With over 30 years of experience, Claudio Valiante began tuning engines for his kids Michael and Claudia's engines back in the 1980's. With an automotive background and a passion for competitive racing, Claudio excelled in this new endeavour. Following his children's progress, Claudio found himself building and tuning Comers, Yamaha, TaG, and finally Shifter engines. Progression found success within racing bodies such as Stars of Karting, SKUSA, IKF, WKA as well as regional and club races in Canada and United States. With this success, karting became a mainstay in the Valiante family and soon Claudio found himself returning to Italy to visit engine factories to gain relationships to further his knowledge and import engines. This led to Claudio being the first to bring and then import the IAME Leopard into North America.
     The knowledge gained by Claudio would be passed down through the Valiante family to where we are today with engine repair and development is headed by son Michael, son-in-law David Carpentier and of course, Claudio himself. IM Tuning is located at the Sumas International Motorsports Academy complex. Along side the SIMA track and Italian Motors Pro Shop, IM Tuning continue to offer engine building services on site and across North America. Not content with being in one place, IM Engine Tuning also operates out of the Italian Motors trailer - which is outfitted as a mobile engine tuning shop, complete with honing machine, crank balancer, lathe among other tools of the trade. See more on our history of dyno here.

One of the goals at IM Tuning is to pursue engine building and tuning to the very highest of standards of tolerance, quality and customer needs. Though we specialize in TM, X125 and Parilla engines, our expertise is spread across many other brands and types of engines. We strive to meet the most stringent production standards while constant quality measurement ensures that the work we do exactly matches our customer's specification. Our state of the art machine shop includes Sunnen and Effeciemme cylinder honing machines, lathe, milling machines and API Eddie current dyno.
We have the personnel, we have the equipment, but what type of services do we provide? We offer the following services for 2-stroke and 4-stroke engines:
• Complete and partial engine rebuild services including cylinder honing, piston fitting, crank balancing, and much more.
• External and Internal inspection with thorough cleaning service
• In-house Porting, blueprinting and Dyno Services with print off info sheet
• External parts such as carburetors and pipes
• Custom recreational work available
• IM uses Genuine Engine components
• Trackside tuning - our trailer is professionally outfitted for engine work on the go. Look for us at National races to help you get back on track.

First and foremost, phone or email us so we can schedule service and offer a timeline. Print off the "Engine Repair Form" at the bottom of this page and fill it out to include with your engine so that we have documentation once the engine comes to us. Once unpacked, your engine is sealed and washed before undergoing an inspection. Following inspection, we will contact you before any work is done to confirm replacement parts and work. After service is complete, your engine is professionally packed and shipped back to you with a tracking number.

Contact IM Tuning today to schedule in time with us!

We have very competitive pricing available and are able to work with your to achieve the work you want and stay within your budget. You can also email us with your enquiry and we will be happy to put together a comprehensive quote for you.

For further information, please call or email IM Tuning at SIMA Raceway: 360.988.5104 or

Click the Engine Repair Form to print off and include with your engine.