Vintage Oval Racing Engines

     Vintage racing is certainly one of our favorites. I started working on racing snowmobiles when Vintage was new from the show room. If we only knew then what we know now. Today, we take these old engines, of many different brands and designs and add modern technology. Today’s porting explains why some of those engines ran as poor as they did. We can correct by port grinding, reshaping, welding in ports and re-cutting, re-sleeving with iron liners, sleeving with aluminum liners and then adding new Nikasil to replace old chrome. Head is done to modern shape and concepts as well as being very precise on new compression ratios. We can update engines with new advanced ignition systems along with race proven carburetion. Certainly our new technology is used in designing and manufacturing exhaust systems.

     Race Prep your Vintage Polaris, Rotax or Arctic Cat…295cc to 800cc…Quote Depends On Needs. WPT can prepare your Vintage engines with modern porting, high tech head designs, newer ignitions and pipes with silencers for today’s racing. Cylinders can be bored, sleeved or re-conditioned with new Nikasil plating. Some model engines can have the ignitions updated to newer models systems for improved performance. You need to provide good parts to work from and WPT can prepare Quality, Legal Race Engine using techniques acquired from 25 years of preparing race engines. Each engine is prepared to the best of the ability of the parts provided. New parts will be recommended when required. It is our goal to make every engine, a winning engine.

     Cylinder Head Design is certainly one of our specialties.
WPT Heads are only prepared by hand fitting to the correct engine. This ensures accurate squish clearances with correct squish ratios. All heads have the cc’s measured to verify the correct compression ratio for the fuel you use. Some cylinders should have the tops cut to help the head work come out correctly. We can provide custom copper head gaskets for many models.

     Racers may come to our facility or ship engines to the WPT for Dyno for tuning and evaluation of many engines in a days time or fine tune a given engine. See which of your engines is better and tune the best performance out of each one. Find the correct Rpm range, Jetting, Timing and even Spark Plugs, are things you can now verify with solid data, no longer just opinion.

     Bench Evaluation: Disassemble, evaluate all measurements and document only. No charge with Race Prep. Reassemble after cleaning parts if further work is not done by WPT. If/When we prepare your race engine, the above is not charged. It is part of doing it right. We need to know what you need first.

     Dynamometer Break-In Service: Highly recommended. Our test facility can do the break-in of your engine better and in more controlled conditions than can be done on a boat. This saves you time as your engine is delivered to you with knowledge that it runs correctly and is race ready.

     Dynamometer Service: Racers may come to our facility or ship engines to WPT for Dyno tuning and evaluation of many engines in a days time. See which of your engines is better and tune the best performance out of each one. Fuels, Jetting, Timing and even Spark Plugs, are things you can now verify with solid data, no longer just opinion.

     Providing Us With Equipment: You need to provide good parts to work from and WPT can prepare Quality, Legal Race Engine using techniques acquired from 25 years of preparing race engines. Each engine is prepared to the best of the ability of the parts provided. New parts will be recommended when required. It is our goal to make every engine, a winning engine.

  • Dynamometer Service (per day charge) $400.00
  • Cylinder Porting (each cylinder) $150.00 – $250.00
  • Deck Cylinder Tops (each cylinder) $25.00
  • Crankcase Mods (Transfer area) $150.00 – $350.00
  • Custom Copper Head Gasket $15.00
  • Carb Machining $45.00 – $125.00 (each carb)
  • Machine Heads to Proper ECR $150.00 – $250.00
  • 2 Cylinder Custom Exhaust Pipes $550.00
  • 3 Cylinder Custom Exhaust Pipes $800.00
  • Re-Sleeve, Finish Bore & Hone $175.00
  • Bore & Hone $55.00 (each cylinder)
  • Re-Plate (Nikasil) US Chrome $125.00 – $150.00
  • TLC Charge (per hour) $75.00