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2nd gen piston pump

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Old 02-24-2008, 10:52 AM
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2nd gen piston pump

hey guys, what is needed to run a 2nd gen piston pump on my 1st gen? just a regulator, or do i need to change a spring too?
Old 02-24-2008, 11:25 AM
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Here check this thread out. BC did a great write up on it as usual.

https://www.dieseltruckresource.com/...d.php?t=176472

Hope this answers your questions.
Old 02-24-2008, 12:04 PM
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Ok, so this is my plan, will it work:
Put a regulator before the VE, but after the filter. Easiest way to do this is to get a Big Line kit from GDP for a 24 valve truck, it is a bolt-on replacement for the hard line between the filter head and the VE, it uses AN fittings and 3/8 fuel hose so it's easy to tap into.

You will be able to use the high pressure capability of the piston pump to force fuel through the filter, but then it will be regulated down to a VE safe 15-18 psi.
But can i use this regulator?
http://www.vulcanperformance.com/ser...gulator/Detail

Also, how could i run rubber lines from the Piston pump to the filter?
Old 02-24-2008, 01:20 PM
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You can run rubber as long as they are rated for diesel fuel. The lines for gas tend to get soft over time. I can't answer the regulator question because I haven't done this upgrade yet, but as long as it brings it down to the psi required I don't see why not.
Old 02-24-2008, 01:41 PM
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I don't see any reason you can't use it, its just a cheaper/simpler compared to what BC used, his has provisions for boost reference to increase the pressure as boost increases.
Old 02-24-2008, 02:47 PM
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Ok, thanks. Does anyone make a line kit from the piston pump to the fuel filter?
thanks.
Old 02-24-2008, 04:13 PM
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I have one of those regulators sitting on my tool box waiting to be installed as we speak.

As for the LP to filter, when you order the regulator order a couple feet of fuel line, 2 -6AN couplers, a M12 adapter and a M14 adaptor and you're good to go.
Old 02-24-2008, 04:14 PM
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Also, another question is did the 2nd gen trucks come with the spacer inbetween the block and the pump? how important is this spacer. is there any way you can run without it?
thanks.
Old 02-24-2008, 04:16 PM
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Originally Posted by ryan10
Also, another question is did the 2nd gen trucks come with the spacer inbetween the block and the pump? how important is this spacer. is there any way you can run without it?
thanks.
You need the spacer. It adjusts the distance from the pump rod to cam lobe.
Old 02-24-2008, 04:37 PM
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Ok, thanks. did the 2nd gen trucks come with them?
Old 02-24-2008, 05:34 PM
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Originally Posted by ryan10
Ok, thanks. did the 2nd gen trucks come with them?
AFAIK they did. Check the sticky and I think there is a part #.
Old 02-24-2008, 05:36 PM
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Ok, thanks. Will this big line kit work? will it supply me with the fittings needed to run the big hose all the way from the piston pump to the filter to the injector pump?
http://www.genosgarage.com/prodinfo....N_VPPS9802_KIT
Old 02-24-2008, 06:05 PM
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I believe the LP fitting is M14.

Vulcan perrformance is cheap. Probly cheaper than that kit to build it yourself.

My .02
Old 02-24-2008, 06:23 PM
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Ok, so which kit would i be better off with? im looking to go from the piston pump up to the fuel filter then to the injector pump, all big lines.
Old 02-24-2008, 06:42 PM
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I would piece it together from Vulcan myself. (Cheaper than the GDP kit I bought)

3ea M12 adapters (IP, Filter in, Filter out)
1ea M14 adapter (LP out)
4ea -6AN pushlock fittings (Plan ahead and buy what angles you need)
3-4 feet of fuel line ( I always buy more that I expect to need)


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