ATI have no such a thing as customer service (they have not answered any questions thru e-mail).
I have P600B with 2,65" driven pulley.

1. How much boost will I get? At 6500rpm in engine (limited), impeller speed is about 53000rpm. With original "restrictive" dual IC.

2. How much boost if impeller speed is maximun 60000rpm?

3. What direction the driven pulley bolt opens?

4. How much HP will car own + ATI inline fuel pump support?

5. Are the "surge valves kit include" any good? What You recommend replacements?


1990 manual L98
Will come with:
383 all forged, 6" rods
Custom IC (one big in front of condenser)
Autronic SM2 with Direct Fire from Sporttiauto
About 60lbs injectors
Hooker 2149 headers
Accel high flow intake
AS&M runners
52mm TB from David Koldos (EXCELLENT SERVICE ! )
Dart Pro 1 ported heads
Aluminum flywheel
Special cam
Öhlins shocks ,aso...
and maybe a Alcon brakes too, if I rob another bank..

SPECIAL THANKS TO Tomi Laine Indiana. For a BIG help with parts and knowledge!
Thanks for outstanding products, R-D Racing, Dave Cooper!
Also thanks for big help "ZF" and quality products, Bill Boudreau !

BTW this Forum Rocks!

 

I would like a bit more info to provide better answers, but in absense of data here is my best.

1) From your sig, I assume a 90 with dual IC (possible single). For that reason, max redline with a long runner intake will be 5600-5800, so boost will be on the order of 10-12 psi (assumming belt slippage is held to a minimum). ATI supplied mount bracket may be modiifed to minimize slippage. This is also assumming that the heads/cam/intake are still relatively stock. If these have been modified, boost will go down, but flow will increase. HP is a function of flow not boost.

2) reference answer to #1

3) I believe the P-600B has a reverse threaded bolt. But it has been some time since I have changed a pulley on one of these. The D and F series are both common thread bolts (non reverse thread).

4) The stock pump and ATI inline pump will support 500+ RWHP. I ran this for many years. I would advise the install of an in-cockpit fuel psi guage. This will allow continuous monitoring of fp under load. Very good diagnosis tool as well.

5) I ran the original 1" ATI supplied flapper for many years. It will work fine with the P-600B. It needs to be upgraded when you have increased flow to the point that you are blowing the air transfer duct to the throttle body between shifts.

Aaron

 

Thanks Aaron!
What more info do You like to know?

I just liked to know the boost with original dual IC, in 53000 and 60000 impeller speed.
Still I will be using single big custom made IC in front of condenser.

1. Ok
2. Ok
3. So it might open clockwise?
4. Ok
5. Ok

How you modify ATI supplied mount bracket to minimize slippage???
Where to find info?

Thank You,
Timo

 

The modification to the bracket requires maximizing belt wrap on the blower pulley. This involves lowering the idler pulley to where there is ~1/4" between the two belt faces. If I remember correctly, the bolt hole is relocated down ~ 3/4" inch and towards the blower ~ 3/8". This will help the belt slip issue. It does however place the idler very close to the alternater pulley, so your alignment of the driven components must be "spot on".

Aaron