I am getting an ATI P600 Procharger. It has been used, and comes with a FMU fuel managment unit,boost regulater/wastegate, mallory boost sensitive fuel pres regulater, all ductwork for the intercooler(the intercooler is a 3 row high flow unit) all the brackets and spacers etc. it also comes with the 12 rib wide belt conversion kit and a 15psi pully as well as the 9 psi pully. My question is this: Do I need to upgrade my suspension and will I be okay running the 15 psi pully since it is intercooled w/the 3 row high flow unit? I have a ZZ4 w/SuperRam and other mods too, of course (3.73's, exhaust, 1850 stall...yuck!) and am running a 12.9 with the stock unported tpi unit on it now. I am planning on a 12.7 or so w/my fully ported superram on. Is there anything I should know about? What should I be running in the 1/4? Any help greatly appreciated!

 

doesn't that ZZ4 engine have 10.0:1 comp. if so i personally would not go over 9#'s of boost. unless you plan on running race gas all the time to prevent detonation. you still might be pushing it. unless you have forged internals. then you'd be okay.

It sounds like a close to complete kit, what about the fuel pump?

oh yeah, you'll need some nice sticky slicks and some suspension mods to get the power to the ground

later
larry


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MÅN¡ÅÇ ©
88 IROC 5.7 TPI
ATI procharger D1sc 10#'s boost, edelbrock TES, complete MSD ignition, Borla cat-back, KB subframe connectors, accel 24# injectors...and a few other go fast goodies

Best E.T. 13.417 @ 106.89 mph on worn out street tires
http://maniac.megamania.com

[This message has been edited by maniacc (edited December 07, 2001).]

 

lol whoops...yes, it comes with the fuel pump as well. Ok...here are the specs for the ZZ4:

Part Number:
24502609 (ZZ4)

Displacement:
5.7-liter(350 c.i.)

Bore/Stroke:
4.00"x3.48"

Engine Block:
10105123 Four Bolt Main, Cast Iron

Compression Ratio:
10:1

Pistons:
High silicon aluminum piston with offset pins, 10159436.

Crankshaft:
12556307 Forged Steel

Connecting Rods:
10108688 PM rods

Camshaft:
Hydraulic roller tappet (#10185071)

Valve Lift (Intake/Exhaust):
.474"/.510"

Duration (Intake/Exhaust):
208°/221° @ .050" tappet lift

Valve Lash (Intake/Exhaust):
Zero/Zero

Cylinder Heads:
Aluminum, 58cc chambers, 12556463.

Valve Diameter (Intake/Exhaust):
1.94"/1.50"

Valve Springs:
LT4 chrome silicon, 12551483.

Rocker Arm Ratio:
1.5:1, 10089648

Distributor:
HEI with centrifugal and vacuum advance, 1104067.

Spark Plugs:
AC FR5LS Gap .035, Rapid Fire #5 Gap .045.

Fuel Requirement:
Unleaded Premium 92 Octane

Ignition Timing:
10° BTDC @ 800 RPM, 32° total @ 4000 RPM with vacuum advance disconnected

Max. Rec. RPM:
5800 rpm

I have been told that since it is intercooled, it can be run at higher psi. Is this not true?

 

I'm not sure on how strong the high silicon pistons are, that would be my main concern.

Yes, intercooling does allow you to run more boost. but manufacture suggestions are:
Vortech non-intercooled 6#'s on stock engine
ATI intercooled 9#'s on stock engine
the vortech kit comes with the boost/timing retard unit to help aid in preventing detenation by removing timing while under boost.

Most people prefer to stay around 9:1 or lower compression.
At 10:1 your pushing the limits, make sure you monitor your oxygen sensor voltages and your knock sensor.

later
larry

 

Not sure of the whole story,but.......guy in town supercharged a ZZ motorand the hyperetectic pistons didnt like it a whole lot!!dont know if it went lean etc,but it got hurt real bad

 

okay...let me ask this -
what would be the difference of running the supercharger on the ZZ4 w/stock tpi vs. the ported superram?

 

you are going to have to lower your compression to run 9psi...even with an intercooler on pump gas

 

hmmm...that sucks....how do I do that?

 

I have a zz4, but I cloned the zz430 by putting Fastburn Heads and a HOT cam in it, I have 10.2 exactly in every cylinder.
I just bought the D1SC with the 3 core intercooler,and I'm running the Holley commander 950 MPFI.
at 4500 feet in elevation I'm going to try to run around 10 pounds of boost.
I have the 3.70 pulley.
The guy I bought the blower from said to run around 30 degrees advance.
I'm starting on the project this week so I'll let you know if I have motor that runs in a week or so.
AM I CRAZY?

 

GREAT!!!! I wanna see how you do! Keep me posted.

 

no you're not crazy...you're just going to have to keep the timing down on pump gas thats all

 

lol...why am I crazy then if I wanna run 9 psi?

 

unless i missed something...you dont have DFI which would allow you to trim the timing map down like the other guy does

you're not crazy, just making more work for yourself

lower the compression, run a safe amount of boost on pump gas with full timing, you'll probably go faster than the other guy who had to pull out timing....timing makes A LOT of your power

 

prochargedROC: thanks for your help. I unfortunately will not be able to lower my compression (money) and probably will not really ever be able to, unless I sell my superram and use the stock tpi. Is that adviseable?

 

I think you are going to be pushing the limit with 9lbs and 10 comp on pump..
Just use a boost retard, that way when you are not gasing the pee out of it you will have full timing for throttle response, and when you are on it you can set the amount of timing retard so you won't beat up you pistons and bearings.

Oh, I don't know if they make a boost retard for computer cars.. I only run carbs..

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82z28 (currently building)with p1sc procharger
70.5 camaro
383 with D-2 procharger
best time 9.38@148

 

you can use a MSD boost timing master (or comparable). but as 89ProchargedROC said, you will be taking away power from the engine when you remove timing, you can also use another method like a water/alcohol injection system. everyone has their own idea on what works best, but what works for them may not work for you because of different set-ups. as i said before, RESEARCH, RESEARCH, RESEARCH!!!. get all the facts you can or it can become very costly very quick.

later
larry