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Live Fuel Pressure Verification on Dyno

10:27
19:20
53K views

At 10:27 in

LSA Supercharged 1972 Monte Carlo Hits The Dyno! Will It Survive?

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What happens here

With the external fuel pressure gauge installed and recorded, a third dyno pull is initiated. The video footage from the under-hood camera vividly shows the fuel pressure gauge's needle dropping from an idle of 58-62 PSI to below 40 PSI as the engine revs up, confirming the severe pressure loss. This visual confirmation solidifies the diagnosis of a fuel delivery problem. The dyno run is once again aborted due to the lean condition.

Goal: Confirm the fuel pressure drop visually.

Tools and materials

  • Dynamometer Dynojet — Simulating load conditions
  • External Fuel Pressure Gauge — Providing live fuel pressure readings
  • Phone — Recording the gauge during the run
  • Vehicle Chevrolet — The car being tested

What they say

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didn't make a pull in reverse so yeah that's a win that's a win so yeah maybe we could try to get that um bigger pump in there or run a relay to power it from the alternator like it was in the escalade yeah um either do a hot wire like you're talking about yeah it's hard to say what it is i mean i guess if it's a if it's a really small wire i would start there first yeah and then we'll go from there guess what it's going to need the hot wire it should yeah you know most most uh ctsb's their pumps are are pretty badass anyway and um and then some of them they put booster pumps on but you know you've normally got the the fuel pump flow control module and it's cranking the the voltage up to it

Auto-generated from the video audio.