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Adding inline pump

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Old 06-22-2007, 06:26 PM   #1
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Default Adding inline pump

I know there is most likely a answer to my question on here but I cant find it. I have a 2000 SS that has a Bosch inline pump, but the pump has been bypassed with a piece of rubber line and I assume it is junk. Can I just replace it with a Walbro 255lph pump? Will there be problems with fuel pressure then? Is there something different about pumps sold as bap's? Any help would be great.
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Old 06-23-2007, 12:12 PM   #2
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Anyone? I also forgot to mention the reason for the extra pump is for the nitrous.
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1981 Z-28 67,000 miles with ls1 swap, ls6 cam/springs, Fuddle 3400, 3.73 gears,Detroit true trac, and dakota digital gauges, Hotchkis suspension, subframe connectors. 13.21@102 mph.

2006 CTS-V 94,000 miles. RevShift motor mounts, trans insert, and diff mount. So yeah its stock
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Old 06-23-2007, 01:44 PM   #3
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Inline pumps generally can help increase fuel pressure, but may be limited in flow based on the pump in the tank.

You should upgrade the intank pump & then you can eliminate the external. This will be quieter & provide better flow than a stock intank & external combination.

I have Racetronix kits in stock for your car.
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Old 06-23-2007, 01:54 PM   #4
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I was wondering if I could just throw a walbro inline because they are only $98 and the car is already set up for it.
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2006 CTS-V 94,000 miles. RevShift motor mounts, trans insert, and diff mount. So yeah its stock
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Old 07-28-2007, 12:05 PM   #5
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Anyone?
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1981 Z-28 67,000 miles with ls1 swap, ls6 cam/springs, Fuddle 3400, 3.73 gears,Detroit true trac, and dakota digital gauges, Hotchkis suspension, subframe connectors. 13.21@102 mph.

2006 CTS-V 94,000 miles. RevShift motor mounts, trans insert, and diff mount. So yeah its stock
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Old 07-30-2007, 08:02 AM   #6
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I had a Vortech inline pump and it was very annoying at start up. I would go with a bigger pump in the tank.
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Old 07-30-2007, 12:51 PM   #7
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As was said. And prob why the pump was bypassed. You need a bigger pump intank as you will get extra pressure from the external but not extra volume as you can not pull more fuel through the stocker in the tank.

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Old 07-30-2007, 01:29 PM   #8
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I will go with a in tank pump for next year, kind of running low on funds this year. Got a few other things to take care of first, will just have to wait and spray next year.
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1981 Z-28 67,000 miles with ls1 swap, ls6 cam/springs, Fuddle 3400, 3.73 gears,Detroit true trac, and dakota digital gauges, Hotchkis suspension, subframe connectors. 13.21@102 mph.

2006 CTS-V 94,000 miles. RevShift motor mounts, trans insert, and diff mount. So yeah its stock
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