Modified Outboard

     I stared building Mod engines in 1976. since then there is no way to count the number of Championships the our products have won over the years.


WPT offers advanced cylinder porting needs. 2, 3, 4 or 6 cylinder engines.

     Few have seen what we do for porting, even less will talk about it. They better not talk either! But now, you can get the same work. It is not as easy as you think and Mike has done this for years. All our porting is done on a vertical mill with digital readouts.

     This ensures accuracy. All other the hand work required is done with industrial porting tools. Formula A to Formula E, Wienandt porting have won championships.

     We do not want to build complete engines for these classes anymore, however any machining you could need, we can do.

     We can fit and finish your exhaust systems. We can design special exhaust systems for you. We can custom build expansion chamber to your spec or ours. Check out our Custom Exhausts section.

     Connecting Rods can be resized for Mod racing and all our finish. Cylinder honing is done on our Sunnen # 1650

     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.