5250 High Performance Dyno Shop Blog

Dyno Tuning | Getting the right AFR & Reliability

[fa icon="calendar"] Aug 31, 2017 8:20:00 AM / by Mike Wiener

Retail-09.pngDyno Tuning in Colorado | High Performance Builds

To start off, in order to tune the car to not only be reliable but easily driven highly relies on the parts that are on the vehicle and the build itself.

Without quality work and proper modifications the end goal will likely not be reached to a satisfactory level for the owner.
Though with quality work, the correct parts with reliability in mind the goal should be easily achieved. When reliability is a necessity it is important to keep in mind that quality is key and you get what you pay for. Cheap parts will not last long, and many cheap parts will fail, taking some or all of the engine with it.

For reliability to take place your power goals should be reasonable. So if your motor’s known limit only allows for 400hp, do not set your goal for 400hp or above as at that point the motor will be prone for failure. What's more important at this point, the number (your ego) or driveability with reliability?

Try to set it around 350 for that extra wiggle room so you are not putting the maximum level of stress on the motor that it can handle. Your wallet will thank you.

Keep in mind, you always lose some reliability anytime you start modifying your car, there is no escaping that.

Now for the tuning, for reliability tuning will be on the conservative side. Starting off the car will be slightly on the rich side under wot and heavy load to keep the EGT’s down.

Timing will not excessive to keep the stress on the motor at a reasonable level. If the car is boosted this still applies. Boost pressure will be at a moderate level as well keeping in mind with your power goal.

Dyno Tuning ColoradoWith a lot of changes and modifications made to the car, your tuner will likely need spend more time and load the car up cell by cell to get the vehicle dialed in at proper AFR, timing and respond to knock and keep it at a conservative level if modifications are close to the limits.

Though the bottom line to this is keep a reasonable power goal and don’t cheap out on builds. I have seen plenty of failures due to cheap builds that could have been prevented.

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Topics: Dyno Tuning Colorado

Mike Wiener

Written by Mike Wiener