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Old 08-11-2012, 02:34 AM
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GM EP381/Bosch 69225 install?

Has anyone ever installed the EP381 into the 97-05 Park Ave/2000-2005 Bonnie?

This is the old Syclone/Typhoon pump, that is used in a LOT of GM cars/trucks, and from what I gather, very well might be the same pump in the fuel pump modules. The EP381 replaced the lower flow EP379.

I did look at the 2000 Park Ave Ultra and the 99 GM Truck 454 pump and they physically are identical. I suspect they might be the same, the GM pump is said to support 300 hp, the 454 makes 290.

The EP381 is 50 GPH @ 55 psi. That I suspect is more than enough for a stock and lightly modded 3800 SC. It outflowed the TTA/GN pump.
Cars built by engineers, rather than spreadsheets, tend to go down in history... Tiff Needell

2000 Buick Park Ave Ultra, Supercharged 3800 L67, PCM tuned by me with TunerCat2 and Moates Roadrunner PCM for realtime tuning
And now supporting with EFILive!!

Last edited by n0dih; 08-11-2012 at 02:41 AM.
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