Sim testing (or simulation testing) – Is a test performed by manufacturers of rebuilt engines but is often referred to incorrectly as Dyno testing. Sim testing is the process of using a machine to spin the engine. The SimTest machine flows preheated oil through the engine while spinning the rotating assembly. This allows us to test for compression, proper oil pressure and any noises. It also allows the engine lifters to be pumped up thus aiding in eliminating any start up tapping.
The SIMTEST is a simple engine test that standardizes quality and reduces any possible comebacks. The relative success or failure of a remanufactured engine is a matter of physics, plain and simple. This machine checks it all: compression, pressure maintenance, oiling, valve adjustment, turning torques and a host of other functions.
These are checked against rigid industry standards. With the SIMTEST machine, we systematically test all mechanical functions and procedures involved in engine remanufacturing. It’s accurate and dependable and helps assure our guarantee to you for the highest quality remanufactured engine possible. So, the next time you order a remanufactured engine from us, rest assured that it is the highest quality engine.
The engine is not under its own fire or running on fuel at this point.
The reasons an engine sim tested is done in this manner, as opposed to a true Dyno test, are as follows.
Dyno testing – is a test to an engine with it operating out of the vehicle under its own power. This means running and firing under fuel and with a load applied.
- The cost (it would increase the cost of each engine by $1000.00-$2000.00)
- The man hours involved (it would increase the end time for rebuilding by another 8 hours, due to having to dress, run, and undress each engine)
- Equipment (we would have to have in house every computer, harness, fuel management system etc for every engine we rebuild, which is roughly 3500)
So overall – it is not feasible to Dyno test because it would end up costing you twice as much for each engine. The Sim test provides an excellent baseline, and allows us to weed out any mistakes made in the re-manufacturing process.
When remanufacturing our engines
When remanufacturing our engines all parts are precision machined, honed and polished to exact tolerances.
- Oven Bake Blocks
- Jet Wash Blocks
- Tap And Clean All Bolt Holes
- Magniflux Blocks
- Decking Blocks
- Bore Cylinders
- Hone Cylinders
- Oven Bake Heads
- Magniflux Heads
- Resurface Heads
- Regrind Valve Seats
- Grind Valves
- Grind Crankshafts
- Grind Cams
- Clean, Grind and Inspect Rods
All New Engine Parts that meet or exceed O.E. Specifications
- Pistons and Pins
- Piston Rings
- Connecting Rod Bearings
- Valve Springs
- Valve seals
- Oil Pumps
- Valve guides
- Timing Chain
- Timing Gears
- Rod Bushings
- Main Bearings
- Camshaft (New or reground)
- Camshaft Bearings
- Gaskets and Seals
- Freeze Plugs
- Valves (or valves re-manufactured to factory specifications)
Roadmaster remanufactures engines to supply quality customer satisfaction.
Call us now for any parts or engines you’re looking for at 800-447-9899 or email us.
Finally, take a look at our dependable remanufactured engine process on our home page.
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