TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Fuel pump..

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Old Apr 12, 2002 | 07:17 PM
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JR305's Avatar
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From: Chandler AZ
Fuel pump..

Just a quick question, does anyone know how much HP the stock 305 TBI fuel pump will support?
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Old Apr 12, 2002 | 07:43 PM
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From: Barboursville, WV
i know there was a guy with a carbed 383 with a 750 double pumper ( i think) and he still had the stock intake TBI fuel pump
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Old Apr 13, 2002 | 03:07 PM
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From: Chandler AZ
Thanks for the reply. If someone is running the stock pump on a 383 I should be fine. Just wanted to make sure.
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Old Apr 14, 2002 | 11:49 AM
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From: Virginia Beach, VA, USA
Actually, if that was me you were referring to (383 with Holley V/S's - ~450HP) I'm running the Walbro TPI in-tank variant with a Mallory three port regulator. 255 liter/hour direct swap pump - $100; excellent bang for the buck. I don't think the limiting factor in power (at least up to 400ish HP) is going to be the fuel pump. However, since I had to replace it anyway, AND I was looking forward to going turbo I wanted to make sure that I didn't have to do another swap.

I think Jon Prevost is running the stocker with a 330HP crate engine; email him for clarification.

Steve
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