We have 3 dynos, two from Stuska and one Superflow, capable of 2500 HP. All are equipped with the most accurate and precision depac dyno instrumentation, including the famous auto-dynamic load (ADL) control system, which allows us to test a drag engine from 7000 to 9000 rpm in 2 seconds or test a circle track from 3000 to 7000 in 6 seconds and still get repeatable results most of the time with in a 1/2 HP. Our system also has weather probes that measure absolute humidity, absolute (dry) atmospheric pressure, and absolute air temp. If we test your engine on a humid day in July or a dry day in January we will get the same results. We use the newer SAE standard for dyno testing J1349 which is dry air temp 77 deg. at a pressure of 29.23 hg which is closer to the normal operating conditions of an engine. Others use the older J607 SAE standard, which is about 5% different, and still others use a "racers" standard that is made up to make you feel good, usually 20-30 hp more than it should be. On our system we also have a true inertia correction that is infinitely adjustable, this has to be addressed if you want accurate results. If you have a heavy flywheel or a lite weight crank your inertia factor is different. If you have any questions please call anytime, we are dyno smart ... we eat, breath and sleep this stuff!
Tiry Race Engines
W12031 Rose Eld Rd, Ripon, Wisconsin 54971
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