Centri and BoostControl - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

DarkCry956 · 03-30-2015, 10:57 PM

I would like to control boost on my YSI setup. I'm looking to go from 10-15-20psi or something like that.
What's the best way to get this done? What control and what all would be required to get this done?
If it could be broken down to how it would work it would be nice

BlaqWhole · 03-31-2015, 07:29 AM

A few years ago, in the Mustang community, a well known company developed a way to control boost on a centrifugal system much like is done with a turbo. I think you could only adjust it within a range tho. I'll try to find the article. It was kinda expensive so it might not be worth it.

supergt99 · 03-31-2015, 07:47 AM

Can't you just plumb in a wastegate? Except it would be dumping air from the blower. This is something I wanted to do years ago but never did it. Would be nice to see what people have done.

Unreal · 03-31-2015, 08:44 AM

It can work. A bit tricky to setup and get stable, got to play with gate size/placement/spring but you can do it. You can turn boost down, not up so you pulley for max boost or max blower speed then can use wastegate to bleed off extra boost. Downside is IATs are hotter because spinning blower harder, harder on belts, harder on the blower.

MagnumForceGB · 03-31-2015, 08:56 AM

You will need to change the pulley size, each step down is usually 1 psi increase.

Mustangs are limited to about 10 psi stock so a company uses 3.33" pulley with a Tial wastegate to increase boost lower but still keep the boost in limits. They gain like 77 ft-lbs of torque doing that.

DarkCry956 · 03-31-2015, 10:10 AM

I already have the blower at max speed and have a general idea of how it works. I'm looking more into the hardware side. What control and wastegate to use and like unreal said placement and spring size.
I know it could be done I've read the articles and I've seen some guys on here post about it. maybe they'll chime in with their experience with the setup

Rdunn · 03-31-2015, 12:54 PM

That's what I to with my f1x.

My blower is pulleys are for around 27psi. Bit the blower only puts out 16psi thru the CBI plate system on the car.

If I want more or less boost I just switch plates. Takes about 5 seconds. No messing with pullies or belts or anything else.

DarkCry956 · 03-31-2015, 01:33 PM

Got pictures of your setup?

HOU_TX_SS · 03-31-2015, 02:30 PM

I would like more info on this as well. I have an f1x and would like to do this as well.

stevieturbo · 04-01-2015, 08:00 AM

Just search, hundreds if not thousands of people have done it already

Search Tech, Bullet etc

You can use a w/g or suitable BOV, then some decent electronic boost controller to make it work for you.

03-30-2015, 10:57 PM	#1
DarkCry956 Drives: 2011 Camaro 2SS/RS Join Date: Oct 2011 Location: Texas RGV Posts: 794	Centri and BoostControl I would like to control boost on my YSI setup. I'm looking to go from 10-15-20psi or something like that. What's the best way to get this done? What control and what all would be required to get this done? If it could be broken down to how it would work it would be nice

03-31-2015, 08:44 AM	#4
Unreal Drives: 2006 Z06 Join Date: Oct 2010 Location: Gilbert, AZ Posts: 5,712	It can work. A bit tricky to setup and get stable, got to play with gate size/placement/spring but you can do it. You can turn boost down, not up so you pulley for max boost or max blower speed then can use wastegate to bleed off extra boost. Downside is IATs are hotter because spinning blower harder, harder on belts, harder on the blower. __________________ Nick Corvette Z06 -1200ish rwhp

03-31-2015, 08:56 AM	#5
MagnumForceGB Drives: Fastest 2010 Camaro V6 Join Date: Apr 2010 Location: Newcastle, OK Posts: 3,571 View My Garage	You will need to change the pulley size, each step down is usually 1 psi increase. Mustangs are limited to about 10 psi stock so a company uses 3.33" pulley with a Tial wastegate to increase boost lower but still keep the boost in limits. They gain like 77 ft-lbs of torque doing that. __________________ Camaro V6 = 11.268 @ 120.11

03-31-2015, 12:54 PM	#7
Rdunn Really, Really Fast Drives: 2010 Camaro SS Join Date: Feb 2013 Location: St.Louis,Mo Posts: 686	That's what I to with my f1x. My blower is pulleys are for around 27psi. Bit the blower only puts out 16psi thru the CBI plate system on the car. If I want more or less boost I just switch plates. Takes about 5 seconds. No messing with pullies or belts or anything else. __________________ Procharger F1X, TH400, E85, CBI Street Cars, DSX Tuning, 1300whp

03-31-2015, 07:29 AM	#2
BlaqWhole Account Suspended Drives: 2017 Camaro ZL1 A10 Join Date: May 2012 Location: NJ Posts: 7,692	A few years ago, in the Mustang community, a well known company developed a way to control boost on a centrifugal system much like is done with a turbo. I think you could only adjust it within a range tho. I'll try to find the article. It was kinda expensive so it might not be worth it.

03-31-2015, 07:47 AM	#3
supergt99 Drives: 2013 Camaro SS 1LE Join Date: Oct 2014 Location: earth Posts: 288	Can't you just plumb in a wastegate? Except it would be dumping air from the blower. This is something I wanted to do years ago but never did it. Would be nice to see what people have done.

03-31-2015, 10:10 AM	#6
DarkCry956 Drives: 2011 Camaro 2SS/RS Join Date: Oct 2011 Location: Texas RGV Posts: 794	I already have the blower at max speed and have a general idea of how it works. I'm looking more into the hardware side. What control and wastegate to use and like unreal said placement and spring size. I know it could be done I've read the articles and I've seen some guys on here post about it. maybe they'll chime in with their experience with the setup

03-31-2015, 01:33 PM	#8
DarkCry956 Drives: 2011 Camaro 2SS/RS Join Date: Oct 2011 Location: Texas RGV Posts: 794	Got pictures of your setup?

03-31-2015, 02:30 PM	#9
HOU_TX_SS Drives: Camaro SS Join Date: Jan 2013 Location: Katy, Texas Posts: 156	I would like more info on this as well. I have an f1x and would like to do this as well.

04-01-2015, 08:00 AM	#10
stevieturbo Drives: it changes Join Date: Nov 2010 Location: Norn Iron Posts: 1,126	Just search, hundreds if not thousands of people have done it already Search Tech, Bullet etc You can use a w/g or suitable BOV, then some decent electronic boost controller to make it work for you.