Boost question.
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 1,240
Likes: 55
Boost question.
In what increments can you change your boost with a pulley swap?
I'm running 7lb's now, can I go to 8lb or do I need to go to 10lb's, how does that work?
Thanks!
I'm running 7lb's now, can I go to 8lb or do I need to go to 10lb's, how does that work?
Thanks!
Last edited by LAYNLOW; Feb 5, 2007 at 06:35 PM.
Safety Car
Joined: Jun 2004
Posts: 4,353
Likes: 22
From: Bella Vista Ca
That really depends on engine size, the SC you have and RPM. Usually a pulley change to the next size will increase about 2 lbs of boost.
What SC system do you have and what is you displacement?
What SC system do you have and what is you displacement?
Burning Brakes
Joined: Feb 2000
Posts: 1,247
Likes: 2
From: Parker, Colorado, USofA
I drove this way for three or four months then went back to the stock pulley. The _octane_ available up here couldn't sustain the boost without changes to the fuel map. I was getting severe retard due to knock.
So, it's not a one-variable situation. If you want more boost, you'll have to compensate with fuel and spark. If you're okay with that, good on ya!
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 1,240
Likes: 55
I have the stock displacement of 350 ci. The more I read about the baggage that comes with the boost increase is certainly making me re-evaluate this. I think I'm going to wait until I can do this the right way or just leave things as they are.
Thanks to everyone who responded!
Thanks to everyone who responded!
