If you’re going to build your own dyno, don’t expect it all to come together overnight and be prepared to do some work & go a little mad. You’re going to have to spend some money too.

Yes, every bike can be dyno tuned, from Big Twin Harleys, all the way down to two-stroke dirt bikes. However, there is less of a need to dyno tune bikes that haven’t undergone performance modifications.

The cost of dynos can range quite a bit, from just over $10,000 to more than five times that amount. On average, however, Allison Blackstein, director of sales and marketing for Dynocom Industries, located in Dallas, Texas, says the typical dyno with load control will cost about approximately $35,000.

A hub dyno can run you $60,000-$80,000 and an all-wheel-drive system can go for around $120,000 or more.

To give a ballpark figure – if you are on a stock car, you could probably gain 10-15 horsepower from a dyno tune. However, if you are running on performance parts like exhaust and turbo, then 50 horsepower gain is possible – even more depending on your engine and what performance parts you equip.

A dynamometer, or “dyno” as they’re called by you and I, is a device for measuring force, moment of force (torque), or power. In the automotive world, they’re used to precisely calculate the power produced by a vehicle’s engine at the wheels.

After a few incidents of the unit sinking into the aforementioned Norway snow, the guys set about bolting the entire redneck dyno assembly to a steel-reinforced concrete foundation. They mounted steel frames around the axle, both as safety walls and to support a new ramp.

Here’s a drawing of the wheel. h ere’s an exploded view of the dyno design. The main wheel has been sized to suit the types of bikes that I will be testing: bikes from the 70’s and 80’s, mainly airheads. The red wheels are removeable and can be installed to cater for bikes with more horsepower.