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How to choose P1 or D1?

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Old 10-21-2005, 03:44 PM
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Default How to choose P1 or D1?

I want to go with a Procharger but don't know which would be best suited for me. I see a lot of guys running the P1 but most people say to go with the D1. According to the info that ATI sent me the P1 will make more low end power and the D1 will make more high end. Also it says that unless you plan on running 12# of boost or more that the P1 would be best suited. I understand the D1 will be more efficient and push more air at the same amount of boost. It would also allow more room to grow
Some things that I have read say that the P1 has radial impellars which is better for low end power and the D1 has helix impellars.

The most cubes I would ever run would be a 383 and probably never run more than 12#. I plan on keeping the stock motor for as long as possible.

One thing that makes the P1 more appealing is the lowend for everyday driving.

Can someone shed some light on this. Maybe we need a pros and cons list for both?
Old 10-21-2005, 04:18 PM
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D1....sounds better! haha. All of my buddies run D1's so I am somewhat biased. Like you stated, there is room for "improvement" if you wanna pulley up for more boost.

Good luck
Andy
Old 10-21-2005, 06:19 PM
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Originally Posted by No Juice
I want to go with a Procharger but don't know which would be best suited for me. I see a lot of guys running the P1 but most people say to go with the D1. According to the info that ATI sent me the P1 will make more low end power and the D1 will make more high end. Also it says that unless you plan on running 12# of boost or more that the P1 would be best suited. I understand the D1 will be more efficient and push more air at the same amount of boost. It would also allow more room to grow
Some things that I have read say that the P1 has radial impellars which is better for low end power and the D1 has helix impellars.

The most cubes I would ever run would be a 383 and probably never run more than 12#. I plan on keeping the stock motor for as long as possible.

One thing that makes the P1 more appealing is the lowend for everyday driving.


Can someone shed some light on this. Maybe we need a pros and cons list for both?
The P-1SC is indeed supposed to bring the boost in earlier, but I cannot tell any difference between the two myself. To make 8 psi with both blowers will require a smaller pulley on a P-1SC, which means it will be producing more heat. For the extra cost of the D-1SC, it is well worth it as it is fairly easy to outgrow the P-1SC. The D-1SC for '05 also comes with larger 4.5" thick intercoolers, up from the 3.5" ones that are used on the P-1SC and the earlier D-1SC kits. 3" intercooler tubing replaces smaller 2.5" tubing as well. Bob
Old 10-21-2005, 06:21 PM
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If you have any thoughts of going with a 383, definitely go with the D1. I doubt you will be able to run a 383 and 12#'s with a p1. That might even be a pretty tough feat for the D1.
Old 10-21-2005, 06:21 PM
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I'm running the P1 and that is fine for me. I'm not looking for over 500HP. I want to keep the stock bottom end and not looking to push it too hard. It's a real kick in the @$$ going F/I.
Old 10-21-2005, 06:50 PM
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Get the D1 and its only a couple hundred dollars more than a P1.
Old 10-21-2005, 07:36 PM
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D1 and don't worry about regretting not to upgrade it when you do start to mod your car extensively.
J
Old 10-21-2005, 08:20 PM
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F1R.
Old 10-21-2005, 09:31 PM
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Originally Posted by Gary98Z
If you have any thoughts of going with a 383, definitely go with the D1. I doubt you will be able to run a 383 and 12#'s with a p1. That might even be a pretty tough feat for the D1.
True that, so far I can only get 7#
Old 10-21-2005, 09:59 PM
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P1 good.
D1 better.

I run a P1.
Old 10-22-2005, 05:30 AM
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We were easily able to get 14 pounds of with a 395 ci that we built, when we added a D-1SC. Patriot Performance stage 2 heads, Lingenfelter GT2-3 camshaft. I don't remember the pulley size, but we weren't at the smallest pulley size. Bob
Old 10-22-2005, 10:15 AM
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Originally Posted by Exotic Performance Plus
We were easily able to get 14 pounds of with a 395 ci that we built, when we added a D-1SC. Patriot Performance stage 2 heads, Lingenfelter GT2-3 camshaft. I don't remember the pulley size, but we weren't at the smallest pulley size. Bob
Looks like I may have to swith to a D1.
Old 10-22-2005, 12:34 PM
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Originally Posted by Exotic Performance Plus
We were easily able to get 14 pounds of with a 395 ci that we built, when we added a D-1SC. Patriot Performance stage 2 heads, Lingenfelter GT2-3 camshaft. I don't remember the pulley size, but we weren't at the smallest pulley size. Bob
Hey Bob, was that the Camaro on your site with 8lbs? What numbers did you end up with at 14?
Old 10-22-2005, 12:50 PM
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From what I've seen in this section, boost is addictive. People always seem to want more. If I was in your position I would get the D1 just in case.
Old 10-22-2005, 02:39 PM
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I run a D1 on my GTO and love it. I have all the boltons and cam... And I am glad I went with the D1 because I already want more than the 550rwhp I am making! Of course it takes alot more power to get this pig of a GTO moving than your FBodies!
Old 10-22-2005, 04:29 PM
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If you're going to get your car professionally dyno tuned and aren't looking for a package that includes a tune, then you'd might as well upgrade to the D1... it's a small % increase in total purchase cost, but many people recommend them.

In my case, I needed to purchase a complete package w/tune because there were no experienced LS1 tuners in my area. As such, I bought the P1 kit w/tuner and have been very happy with it.
---Jason
Old 10-22-2005, 05:49 PM
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Running a D1 in my daily driver with no problems, I too was in your condition a while back. Went with the D1, and glad I did.
Old 10-22-2005, 11:09 PM
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Bigger is sometimes better! Bob
Old 10-22-2005, 11:33 PM
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Bob, you getting any of PM's?
Old 10-23-2005, 07:50 AM
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Originally Posted by Ed Blown Vert
Bob, you getting any of PM's?
Hmm, I'll take a look Ed. Bob


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