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America's Oldest Speed Shop ® Talk to the Experts. Call 800.979.0122, 7am-10pm, everyday.
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U.S.Order Line:

800.979.0122

(CST) 7am - 10pm

Race and Rod Tech Support

Mon-Fri 8am - 5pm

Canadian Order Line:

855.313.9180

International Order Line:

1.402.323.3200
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Call: 800.979.0122 800.979.0122

Order Line (CST)

7am - 10pm - Every Day!

Race and Rod Tech Support

M-Fri 8am - 5pm

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M-Fri 8am - 5pm

International Customers Call

1.402.323.3200 1.402.323.3200

Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for high performance parts for street rods and racing for over 66 years. Speedway Motors has built a reputation for providing friendly expert advice and superior service. Whether you are racing, building a street rod or restoring an old classic, Speedway Motors has the performance parts you need – in stock and ready to ship today.

Racing Engines By Speedway Motors

 

Speedway Motors Racing Engine Dyno

 

Dyno Process

GM-Certified Dyno Procedure

Our engine dyno service and engine break-in service is available for all racing crate engines we sell. We are a GM-Certified dyno facility, meaning that General Motors has inspected and approved our dyno testing procedures for testing their crate engines. Dyno and break-in service rates for custom engines can be found on our FAQs page.
 
The Standard dyno/break-in service costs $400 (uses our house carburetor and external accessories) and the Custom dyno/break-in service costs $425 (uses your carburetor and external accessories). Here is an overview of both packages:
 

Standard Dyno/Break-In Package for Crate Engines

  • $400 charge
  • Engine is broken in, tuned and dyno tested using the house carburetor and accessories
  • You get a dyno sheet showing the horsepower/torque of your crate engine as well as engine settings like lash, timing, fuel and oil used

Custom Dyno/Break-In Package for Crate Engines

  • $425 charge
  • Engine is broken in, tuned and dyno tested using your carburetor and accessories
  • Carburetor and accessories must be purchased from Speedway Motors at the same time as the crate engine
  • You get a dyno sheet showing the horsepower/torque of your crate engine as well as engine settings like lash, timing, fuel and oil used

Either of these packages can be ordered in conjunction with the racing crate engines we sell. 

What You Get

Below is a detailed list of our crate engine dyno process and what you’ll get for your money:

Engine Prep

Before a crate engine is hooked up to our dyno it goes through a number of procedures to prepare it properly for initial break-in. Break-in is the most critical point in an engine’s life, so great care is taken to ensure that it is done properly.

  • Degree in the balancer to find true timing mark
  • Adjust valves for proper preload
  • Drain leftover oil from factory and add break-in oil
  • Prime oil system until oil has reached every rocker arm
  • Install distributor for easy start up, vital for proper cam break-in

Dyno Process

After final preparations are complete, we fire the engine for the first time on our engine dyno.

  • Turn engine over until oil pressure is up and carb is primed
  • Start engine and bring up to 3500 RPM no load and set timing
  • Run engine with no load at 2500-3500 RPM until it has reached a proper water temp
  • Engage an automated break-in procedure that ensures all engines are done the exact same way
  • Once the break in procedure has run its course, we run the engine through several dyno tests to ensure it performs to expectations
  • We then are ready to install a customer’s custom parts or our recommended parts for further testing and tuning
  • After testing is done we drain the break in oil and remove the oil filter, drain water and remove any residual fuel from engine
  • Tape up the exhaust ports and carb flange, bag engine and reinstall in the box for shipping. 
  • We keep all records of testing and can help with any tuning or trouble shooting questions throughout the life of the engine
  • Dyno sheet is included with every engine

Contact Us

We're here Monday through Friday, from 8AM to 5PM CST.  You can reach us by calling 800.979.0122 or by email at engines@speedwaymotors.com.  Looking for immediate answers?  Check out our FAQ's page!

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