What Is the Highest Horsepower a Dynojet Dyno Can Read?

Our dyno is a Dynotech Dyno made by Dyno Dynamics. It is capable of measuring 600hp steady state on both the front and rear beds. Information technology is able to measure i,200hp for power runs for front end or rear bicycle drive vehicles. i,200hp per axle or 2,400hp total for ability runs on AWD cars. That ways we can dyno a FWD or RWD auto that makes up to 1,200hp and AWD cars that make up to 2,400hp!

We chose this dyno for its steady state abilities. While other dyno brands read higher than ours, our dyno can very accurately mensurate very small ability changes. One of the nigh important things a dyno does is allow u.s.a. to see changes in the tune that brand more than or less horsepower. A dyno is a tool that allows us to see those changes. Being able to quantify that the parts we simply installed, 2 deg of additional ignition timing, leaner or richer AFR, change in cam timing, or 4 more than psi of boost really made more power is what the dyno is used for and our dyno does that with farthermost accuracy. We have had several cars that we take tuned and put back on the dyno over a twelvemonth later and the power graphs overlay nigh exactly the aforementioned.

Some of the boosted sensors our dyno can measure and log are:

• Heave Pressure/Vacuum
• Dual AFR sensor, ane for each tailpipe for dual exhaust
• Intake air temp probe
• Fuel Ethanol Content
• Fuel Pressure level
• Oil Pressure
• Crankcase Vacuum
• Knock, via Phormula Knock Detection System

Nosotros take an frazzle extraction system that removes exhaust at a rate of 6000 cfm with a fresh air intake, to go along the dyno room air clean and fresh. All air in the room is replaced every 3 minutes making information technology ane of the best dyno cells in the Midwest. The exhaust system hooks direct to exhaust on the vehicle to fully evacuate all frazzle out of the room.

We have two massive fans that motion ane,200 cfm of air each to keep the engine cool and provide plenty of fresh air to the vehicle's air intake and intercooler. We also have three meridian mount intercooler adapters that funnel air directly into the top mounted intercoolers on Subarus to mimic airflow that would be seen on the road.

When information technology comes to computing horsepower non all dynos read the same. Dynos accept dissimilar methods of calculating horsepower. Some use Inertia while others apply Eddie Brakes to calculate horsepower.

Unloaded dynos or Inertia dynos, such as some DynoJet Dynos, utilise a large heavy drum to calculate horsepower. By knowing the weight of the pulsate, commonly around 3000 lbs, and measuring the rate of acceleration of the drum when the motorcar does a total throttle pull the dynos software tin can summate the horsepower. One downside to an Inertia dyno is that they can only calculate ability while the drums are accelerating. Property the engine at a sure rpm to correctly map the fueling and timing at lower loads is well-nigh impossible. For example, if you lot wanted to melody the load cells of your automobile at 3200rpm and 3lbs of boost you can't actually do that as the car will just briefly hit that specific cell and it makes information technology very hard to go accurate fueling and timing maps for the cruising portion of your tune, which is where you lot spend most of your time.

Loaded dynos, as well known equally Eddie Brake or Eddie Current Load Absorption dynos, such as Dyno Dynamics, use an electrical load that works against the engine's ability output and allows the engine to accelerate at a specific charge per unit. While this happens, force is applied to a load prison cell, which the dynos software interprets into tractive effort, it then turns that into the horsepower and torque numbers we are used to reading. This as well gives us the power to hold your car at that 32000rpm/3lbs of boost and get the fueling spot on in that cell.

For whatever reason all dyno brands seem to read or output different horsepower numbers.  For case, if we have a machine that makes 230 hp on our Dynotech, information technology can have a unlike power output on some other dyno with no changes to the car at all. From testing we take establish that if we take that same 230 hp machine to a different dyno such as a Mustang dyno it will typically read 10-xi% higher, or around 255 hp. Putting that same automobile on a Dynojet will net you lot 22-27% higher power reading, or around 285 hp. That shows you lot how much yous can't rely on dyno numbers as a comparison tool between cars. Since almost every power number you meet on the net is close to Dynojet numbers, because yous know who doesn't want the highest numbers possible? We give all our customers two power graphs. One is the standard numbers our dyno makes forth with the Shootout graphs. The Shootout graphs are typically within 3% of what your car would make on an unloaded dyno. These percentages only relate to an AWD car. Having a rear-bicycle-drive auto and if information technology'southward additional or non volition have a unlike percent ratio for the deviation in power readings from different dynos. The shootout graphs will nevertheless be within iii% to a Dynojet from our dyno.

Below is an example of what we are talking near. The fist flick shows the power a Subaru makes on our dyno. The blueish line is wastegate pressure of 25psi and the blackness line is 42psi of boost. Nothing was done to the car from the fourth dimension it was taken off our dyno and brought to the local Dynojet for testing. You can see that the wastegate pressure tune made about 27% more HP then our dyno HP and the 42psi tune made about 22% more power than our dyno HP. That should really evidence y'all how much dynos can read differently.

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Source: https://www.jmautomn.com/dyno-tuning/our-dyno/

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