Average Procharger boost with 4.5 pulley?

Reply Subscribe

Thread Tools

Search this Thread

Aug 2, 2007 | 10:32 PM

RBCUDA

Thread Starter

On The Tree

iTrader: (6)

Joined: Jun 2007

Posts: 170

Likes: 0

From: Kansas City, Mo

Average Procharger boost with 4.5 pulley?

Hey guys. I'm installing a procharger on my WS6. D1SC with 3.5 IC. It is stock except for the cat back. I know that a lot of different things determine your boost level. On average what will a 4.5 pulley give you. I don't want to go over 8psi. I have a 4.25 but I am not sure if this will be to much boost. Anyone have a 4.5 pulley if that is what I need? Thanks for the help.

Aug 3, 2007 | 01:21 AM

Spade

TECH Enthusiast

iTrader: (26)

Joined: Dec 2001

Posts: 510

Likes: 0

From: Senoia, GA

Call EPP and talk to them about what you have and they should be able to help you out. When I was running a 4.1" pulley with a GT2-3 cam and see about 6psi or so. Every car is going to be different.

Aug 3, 2007 | 05:14 AM

EPP

FormerVendor

iTrader: (22)

Joined: Mar 2003

Posts: 13,063

Likes: 2

If this is a six rib kit, then you cannot compare boost with pulleys to the eight rib kits.
Is this a six or an eight rib kit? Bob

Aug 3, 2007 | 07:37 AM

RBCUDA

Thread Starter

On The Tree

iTrader: (6)

Joined: Jun 2007

Posts: 170

Likes: 0

From: Kansas City, Mo

It's an 8 rib kit. D1SC 3.5 IC It is a stock engine. So I know it will be less eff and have higher boost. I'm trying to figure out which pulley to start with. Hey Bob. I sent EPP two PM's and also emailed through your website then tried calling but you were gone for the day so I left a message. I never got a response from any of it. You've been very helpfull to me in the past. I know that you are a busy man.

Aug 4, 2007 | 11:39 AM

RBCUDA

Thread Starter

On The Tree

iTrader: (6)

Joined: Jun 2007

Posts: 170

Likes: 0

From: Kansas City, Mo

No one has or had a procharger on a stock engine to know about how much boost you get from a 4.5" pulley? Do I start with the 4.25" I have or buy a 4.5" ?