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Dyno Tuning Checklist Rev1.01

Dyno tuning checklist as a guide for you to follow to ensure your engine and vehicle are in proper condition prior to your tuning session.

The most common cause of unsatisfactory tuning results stem from mechanical issues that could have easily been found and corrected prior to the tune.

Go through each of the steps in this Dyno Tuning Checklist to identify and resolve common problem areas that can effect the tuning of your car.


1: Mechanical Engine Health

Compression test :

  • 8:1-8.5:1 compression: 150-170 psi per cylinder
  • 8.5:1~9.5:1 compression: 170-210 psi per cylinder
  • 9.5:1~11:1 compression: 210-275 psi per cylinder
  • 11:1+ compression: 250+ per cylinder (highly depends on cams being used)

Compression Tests should be performed on a warm engine, with the fuel injectors unplugged, and the throttle should be held fully open while testing.

A Compression Leakdown Test (CLT) can also be performed on a warm engine.

Check for any engine oil, other lubrication, or fluid leaks.


2: MAF, Intake, Charge Pipe/Intercooler System, and Vacuum Line

Make sure your intake filter and MAF sensor has been properly cleaned and that the o-ring is sealing properly in the MAF housing.

Vacuum, pressure, or smoke check all MAF housing, intake, charge pipe/intercooler, turbo, and vacuum lines.

Check the full exhaust system from leaks from the exhaust ports on the head to the tailpipe exit.

Check the BOV to make sure it is seating and sealing properly.


3: General Pre-Tuning Maintenance

Do you have all fluid levels where they need be?

Wheel lock key available?

Do you have a sufficient amount of the proper quality fuel in your tank?

Do you have any Check Engine Lights (CEL), Codes, or Malfunction Indicator Lamps (MIL) on?

When was the last time your fuel injectors were cleaned and checked for a system balance?

Do you have sufficient electrical grounding?

How old is your fuel filter?

How old are your spark plugs?

Can your vehicle drive straight?

Clutch capable of handling target power

Can your vehicle drive onto the dyno safely under its own power?

Can your vehicle stop properly in an emergency situation?

How strong is your battery/alternator?

What would you like to accomplish with your dyno tunning session?

 

4: Additional Checks for Turbo & Supercharged Vehicles

Components protected from heat from turbo / exhaust?

Test for excessive turbo shaft play?

Wastegate correctly plumed?

Blow off valve setup correctly / not leaking air?

Check the BOV to make sure it is seating and sealing properly.

Boost controller install correctly and working?

No water or oil lines dangerously close to turbo or exhaust manifold components?

Ignition system capable of supporting target power level, spare coils on site if required

All vacuum hoses in good condition, all ends ziptied in place to prevent boost from popping off hoses

Fuel pump and injectors suitably sized for target power

Exhaust components fastened with high quality hardware, safety wired