Forced Induction Superchargers | Turbochargers | Intercoolers

Boost controller questions

Thread Tools
 
Search this Thread
 
Old 04-10-2008, 03:00 PM
  #1  
Launching!
Thread Starter
iTrader: (2)
 
Shinsetsu's Avatar
 
Join Date: Nov 2004
Location: Newport Arkansas
Posts: 273
Likes: 0
Received 0 Likes on 0 Posts

Default Boost controller questions

With a Dual stage boost controller, say a 5-7psi street setting a a 10-15psi track or racing setting, would I need to stop and re-flash the car with the higher psi tune, or will the map pick it up and be able to run the higher psi safely?
Old 04-10-2008, 03:26 PM
  #2  
TECH Fanatic
iTrader: (4)
 
MECHAM's Avatar
 
Join Date: Aug 2002
Location: Colorado Springs
Posts: 1,243
Likes: 0
Received 0 Likes on 0 Posts
Default

u need a 2 or 3 bar to effectly run 5-7 and 10-15psi without any ecu changes
Old 04-10-2008, 03:51 PM
  #3  
Launching!
Thread Starter
iTrader: (2)
 
Shinsetsu's Avatar
 
Join Date: Nov 2004
Location: Newport Arkansas
Posts: 273
Likes: 0
Received 0 Likes on 0 Posts

Default

well I dont have a motor in the car yet(doing a swap on a non-lsx car) and I was wondering if I would have to re-flash or if there is a way to just flip the switch for more boost and just go
Old 04-10-2008, 04:35 PM
  #4  
TECH Addict
iTrader: (34)
 
Websy21's Avatar
 
Join Date: Jun 2007
Location: Alberta, Canada
Posts: 2,346
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Shinsetsu
well I dont have a motor in the car yet(doing a swap on a non-lsx car) and I was wondering if I would have to re-flash or if there is a way to just flip the switch for more boost and just go
Yes you tune it for the highest setting and than you can go from either one back and forth on the fly!
Old 04-10-2008, 06:23 PM
  #5  
TECH Resident
iTrader: (7)
 
deadmanTA's Avatar
 
Join Date: Jan 2006
Location: Midland, NC
Posts: 868
Likes: 0
Received 0 Likes on 0 Posts
Default

Actually I would tune it for for 1 or 2 psi more than the max boost level you plan on running it at, just in case of over boost. Example you plan on 15 --> tune for 16/17. Once it's tuned then you can just flip it back and forth as long as you're fuel system is built to handle 15 psi.
Old 04-10-2008, 06:40 PM
  #6  
TECH Enthusiast
iTrader: (3)
 
Pat-Man's Avatar
 
Join Date: Jun 2002
Location: Georgetown, Texas
Posts: 598
Likes: 0
Received 0 Likes on 0 Posts

Default

Can't a 2 bar tune be setup for a second boost map (new to tuning so I'm not sure of the actual names)?
Old 04-10-2008, 08:37 PM
  #7  
12 Second Club
iTrader: (6)
 
Schantin's Avatar
 
Join Date: Jun 2004
Location: Ft. Irwin, California (But Virginia is home)
Posts: 1,501
Likes: 0
Received 7 Likes on 1 Post

Default

Originally Posted by Pat-Man
Can't a 2 bar tune be setup for a second boost map (new to tuning so I'm not sure of the actual names)?
Yes and no. If you're putting out 5PSI on the street and 10PSI on the track using a 2-bar SD setup, you can dyno tune the boost curve in the VE table from 0-10PSI. Then you're "covered" at 5PSI on the street as well as the higher MAP levels of 10PSI on the track. It's not a separate mapping, it's tuning the VE table for the highest boost you'll see as well as the boost levels in-between.
Old 04-10-2008, 09:11 PM
  #8  
TECH Enthusiast
iTrader: (3)
 
Pat-Man's Avatar
 
Join Date: Jun 2002
Location: Georgetown, Texas
Posts: 598
Likes: 0
Received 0 Likes on 0 Posts

Default

I see. Thanks for clearing that up. I've been reading up on 2 bar SD tunes (using the Map senser/MAF delete) and just remember reading that a SD tune can allow you to run different boost settings.




All times are GMT -5. The time now is 05:35 PM.