Analyze Data and Increase Boost
7:29
21:36
101.5K views
At 7:29 in
Turbo LS '95 Chevy: Grandpa's Former Daily Driver Turns Into Drag Truck! (Test Hits with a Dragy)
What happens here
The driver uses a laptop and a Dragy device (a GPS-based performance meter) to analyze the data from the recent low-boost run. The Dragy recorded a 60-foot time of 1.79 seconds. This confirms the truck's baseline performance. The team decides to increase the boost by 'pinning' the 3-port MAC valve, which effectively bypasses the wastegate's control system and directs maximum available exhaust gas to the turbocharger, aiming for higher boost levels (estimated around 17-18 PSI) for the next run.
Goal: Review performance data and prepare for higher boost testing.
Tools and materials
- 3-Port MAC Valve — Controlling boost pressure (to be 'pinned' for max boost)
- Dragy GPS Performance Meter Dragy — Measuring 0-60 mph, 1/8 mile, and 1/4 mile times and speeds
- Laptop Dell — Viewing engine tuning data and Dragy results
What they say
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What they say
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