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Engine Dyno Testing and Validation

20:20
50:14
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At 20:20 in

Late Model Engines Shop Full Tour & Assembly Process! BIG POWER Chevy LSX/LT Specialists! (LME)

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What happens here

After final assembly, the engine is installed on a specialized SuperFlow engine dyno. It's connected to an absorber (a type of torque converter) and a drive shaft, which are linked to a strain gauge that measures engine torque. A Holley Dominator EFI system manages the engine's fuel and ignition. The dyno runs break-in cycles and power pulls while monitoring various parameters like horsepower, torque, air-fuel ratio (using O2 sensors), and blow-by. A specialized cooling tower (with a 15 HP pump and 1000 gallons of water) maintains engine temperature, and radiator pressure is built to check for leaks. Blow-by (measured in CFM) is monitored to verify ring seating and overall engine sealing. The entire process is controlled from a dyno console, allowing precise operation and data analysis.

Goal: Verify engine performance, reliability, and health

Tools and materials

  • Absorber — Applying load to the engine
  • Blow-by Meter J-Tech — Measuring blow-by (Crankcase pressure/flow)
  • Cooling Tower — Maintaining engine temperature during testing
  • Dyno Cart — Transporting the engine into the dyno cell
  • Dyno Console SuperFlow — Controlling the dyno and monitoring data
  • Engine Dyno SuperFlow — Measuring engine performance (horsepower, torque)
  • GM Pedal — Actuating throttle from the dyno console
  • Holley Dominator EFI System Holley — Managing engine fuel and ignition
  • O2 Sensors — Monitoring air-fuel ratio
  • Strain Gauge — Measuring engine torque
  • Engine Oil — Lubricating the engine
  • Fuel — Powering the engine during testing

What they say

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to get the to get the guides precisely size for for the specific valves that are going in it we got a couple seating guide machines uh this is doing a set of br3s here cutting the valve job on the heads this will actually machine the machine the angles for the valve job this is straight out of the cnc machine and this one is cut so you can see these are not very well defined that has a radius cutter on the exhaust that we always use so we have a very specific angles um that that we like for that specific cylinder head so that'll all be done on the flow bench uh and we'll design the valve job that gives us the best flow characteristics for that particular port shape and chamber chamber configuration there's a lot of variables that go into you know what valve job should be used for for a specific cylinder head so once that's done we will then go into this room here so we'll do the finish hand blending of the valve job so this is a step that you know sometimes is skipped by others but we really feel like this is the only way to get the valve job blended into the fort work properly um and it gives it that just like hand finished you know primo i did notice that over there it kind of you didn't see as much of the tooling paths in the inside of the valve it looked just like smooth exactly for example like this this here this is all hand blended in yeah so you can't see any on the exhaust

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