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post #1 of 3 (permalink) Old 03-27-2019, 06:57 PM Thread Starter
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Fuel pressure readings

What are normal fuel pressure while under a load at idle im at a good 60-80 ( did the BB shim) and while under hard acceleration it’s at 30-90 is this normal reading ?
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post #2 of 3 (permalink) Old 03-31-2019, 10:41 AM
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Re: Fuel pressure readings

My '96 fuel pressure seems to stay around 50psi from idle to hard work. I don't remember seeing much variation from that with one exception: when first starting up, it seems to be a few pounds less until it has run a few minutes.

This data is via an electric gauge. I have no way of knowing how accurate it is.

Further thought: I do have a needle valve in the fuel line to the gauge in order to squeeze down the pulsations of the mechanical fuel pump. Without it, the needle of the gauge would jump from the "water hammer" effect. If that's what you are seeing, then I would recommend installing something to stop the rapid up-and-down needle or risk damage to the gauge.
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post #3 of 3 (permalink) Old 04-01-2019, 04:22 AM Thread Starter
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I just hooked it up to a regular fuel gauge but it was direct I actually had to use my phone and set it on slow motion to be able
To get the reading off my gauge cause the needle was bouncing really fast due to the mechanical pump.
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