Pewtavert

I am currently running the second generation of the P1SC at a modest 7psi with the 4 3/8 pulley. My tuner felt that this unit was best since I was already modded and running a stock bottom end. My question is that if I do eventually forge the bottom end how much more boost is the P1SC capable of making? I would probably be fine with 10-12 psi so I would imagine that I would be fine with my current unit but I am not sure. I'd hate to have to sell this unit just to get a slightly larger D1SC being that my setup is only a few months old.

98turbls1

iTrader: (17)

Yeah you can definitely make some power out of it... When the time comes though you can just send the P1 back to ATI and have them refresh it and put D1 internals in it...

Slowhawk

iTrader: (12)

We've made 700rwhp on a Z06 with one.The P1 is a very good blower,most people go with the D1 for no reason.

Rickys S/C Z28

iTrader: (13)

iv thiught the same thing i mean this lill P1 seems to pull hard!!

ninetres

iTrader: (35)

A local here made 550/540 with a bone stock 2002 Z06 with a borla catback. Only 9 psi. Not even headers. Cats and all.

Another friend of mine just made 544rwhp on a 2006 mustang gt with a low comp 347 stroker. He is only running 10 psi.

HAMRHEAD

iTrader: (8)

P1 will make good power but you might as well upgrade to the D1 for a little more room to grow if you want.

Urban Legend

iTrader: (5)

Many are pushing 600 rwhp on this board with the P1SC.

Bird-Of-Prey

iTrader: (23)

It was my understanding that a D1 is more efficient than a P1 and would make more power throughout the rpm range and produce boost sooner than the P1 even with the same step ratio. Is there any truth to this or will the D1 only produce an advantage over the P1 when it's limits are reached?

Urban Legend - You have a PM.

JMBLOWNWS6

iTrader: (17)

Made 700 rwhp again the other day with a P1SC! And our custom intank dual fuel pumps for the c5's

Urban Legend

iTrader: (5)

Urban Legend[/url] - You have a PM.[/QUOTE]
Replied.

Rickys S/C Z28

iTrader: (13)

i hope more people chim in on this

Rocktanski

I would tend to agree with Slowhawk. The D-1 produces about 200 cfm more than the P-1. The P-1 is more than adequate for most applications. I could see a D-1 if you were large CI such as a 427 and could utilize the extra capacity of the D-1.

Jeremiah

iTrader: (5)

My 01 SS did 570 Rwhp through the 4L60 and the tiny SC1 blower grind. I disagree with some of you though, the D1 makes more power through out, has more room for future upgrades ect. for an extra $200. You would be stupid as I were not to opt for the D1 when ordering.

$200 now or $1200 later to send it back and have it upgraded.

Frost

iTrader: (45)

MAN.... 592RWHP through a stalled auto on a stock bottom end? Keep an eye on that wideband