blue2002ss06

bout to order a kit on saturday and want it to be done right so... what is the difference btw the two models???? i have heard great things about both but do you see the same numbers out of both??? And can you put the D-1SC on a stock engine with stock heads with just exhaust?? Were upgrading the bottom end dont worry Also i want to start out on 5 psi and work my my up.. thanks guys i really apperciate the help

b727pic

iTrader: (1)

http://www.procharger.com/models.shtml

unless live in CA and need a CARB #, I would get the D1SC. I am in that situation and needed the CARB #. The P1 flows pretty well assuming stock heads, exhaust manifolds, etc. Just with a JBA shortie header install I lost 1 PSi, as you modify the engine the P1's limitations start becoming aparant. if you don't need the CARB # leave yourself some wiggle room and get the D1SC

TrakDay

iTrader: (7)

I agree with B727... I am running the D1SC kit, with no problem as of yet, so I have room to grow. You can never get enough power!

618HAWK

iTrader: (361)

I would say the D1. Gives you much more room to grow. The P1 will be maxed out to soon. And you will be leaving a lot behinde if you have a forged motor. Now like stated if you live in Cailf. you will have problems with the D1 and passing smog. So it is said.....

Urban Legend

iTrader: (5)

The D1SC will give you more boost than the P1SC even if your are using the same size pulley. I learned this after I purchased my P1. The difference in price is only a couple hundred bucks, So get the D1!

Ed Blown Vert

iTrader: (2)

Yes like he said. I started with the P1 for the carb number. And I already have maxed it out. So eventually will be going to the D1.

peter pan

I love my DS1C it made 731 rwhp/645 rwtq. With a forged bottom end you can turn up the wick more, I am seeing 14 lbs out of mine and the tune is 16 degrees and 11.7 AFR. If you need more go with the F1R or a LS2 as mine was done on a little ole 346

EPP

iTrader: (22)

I also recommend starting out with the D-1SC. It is roughly $200.00 more than the P-1SC. Both the P-1SC and the D-1SC use the same housing, the internals on the D-1SC are different. If you already own a P-1SC, you can send it in to upgrade it into a D-1SC, but it will run you approx $1,200.00.
I ran my D-1SC 6 rib unit on my 110,000 '99 Z28 for several years at 7 psi, before we cranked it up to 15 psi at 125,000 on the engine. It lasted much longer at 15 psi than we ever thought it would!
The newer D-1SC 8 rib is what I would recommend, over the 6 rib model, as there is less chance of belt slippage. There is a problem though with the eight rib model as with the combination of the lower crank and the blower pulley, you won't make any less than eight psi of boost with the largest (4.5) pulley they offer. This is with your headers in mind.
I wouldn't let that stop you though, as you shouldn't have any problems with 8 psi of boost. Every time you adjust the boost level, you should recheck the tune. 8 psi of air to air intercooled boost, combined with 42lb injectors, a 255 litre hi pressure fuel pump, and a tune with the total timing backed down to 18 degrees and the air/fuel at wot at 11.2 to 11.5/1, will give you a real good and dependable combination. Bob

blue2002ss06

I also recommend starting out with the D-1SC. It is roughly $200.00 more than the P-1SC. Both the P-1SC and the D-1SC use the same housing, the internals on the D-1SC are different. If you already own a P-1SC, you can send it in to upgrade it into a D-1SC, but it will run you approx $1,200.00.
I ran my D-1SC 6 rib unit on my 110,000 '99 Z28 for several years at 7 psi, before we cranked it up to 15 psi at 125,000 on the engine. It lasted much longer at 15 psi than we ever thought it would!
The newer D-1SC 8 rib is what I would recommend, over the 6 rib model, as there is less chance of belt slippage. There is a problem though with the eight rib model as with the combination of the lower crank and the blower pulley, you won't make any less than eight psi of boost with the largest (4.5) pulley they offer. This is with your headers in mind.
I wouldn't let that stop you though, as you shouldn't have any problems with 8 psi of boost. Every time you adjust the boost level, you should recheck the tune. 8 psi of air to air intercooled boost, combined with 42lb injectors, a 255 litre hi pressure fuel pump, and a tune with the total timing backed down to 18 degrees and the air/fuel at wot at 11.2 to 11.5/1, will give you a real good and dependable combination. Bob

Well i just dont want to detionate ... detionation is my biggest concern i just want to make sure the engine can handle it you know i only have 35 k if that helps.. im upgrading the drivetrain in May so i need it to handle the power for awhile..

EPP

iTrader: (22)

New for last year from ATI were larger intercoolers, that come standard with the D-1SC. They are one inch thicker, and keep the air inlet temps much cooler. With a good tune you won't have any problems. Bob