Notices
Evo Engine / Turbo / Drivetrain Everything from engine management to the best clutch and flywheel.

Can you have 2 boost gauges?

Thread Tools
 
Search this Thread
 
Old Mar 3, 2006 | 12:45 PM
  #1  
lexat20's Avatar
Thread Starter
Evolved Member
iTrader: (24)
 
Joined: Mar 2005
Posts: 2,017
Likes: 1
From: thrillville, IL
Can you have 2 boost gauges?

Can you have 2 boost gauges hooked up in the same line? I ask this because I have my boost gauge and my turbo timer. The timer has playback for peak boost. My plan is to have both gauges hooked up but I don't want to have the tt in sight. I also have a smc alky kit going in so this will also be on the same line. I guess my question really is can I have two boost gauges and the alky kit all on the same line? Should I use a bigger line, maybe a smaller line?
Reply
Old Mar 3, 2006 | 01:20 PM
  #2  
lexat20's Avatar
Thread Starter
Evolved Member
iTrader: (24)
 
Joined: Mar 2005
Posts: 2,017
Likes: 1
From: thrillville, IL
nobody know?
Reply
Old Mar 3, 2006 | 01:21 PM
  #3  
E VOL IX's Avatar
Evolved Member
iTrader: (8)
 
Joined: Jan 2006
Posts: 1,194
Likes: 0
From: Fuquay-Varina, NC
yah.. ive got a automotere in my a-pillar and the blitz dual auto timer that also reads peak and boost.
Reply
Old Mar 3, 2006 | 01:25 PM
  #4  
TxEvo8's Avatar
Evolved Member
iTrader: (5)
 
Joined: Oct 2004
Posts: 1,123
Likes: 0
From: DFW
I've never tried it, but you are merely measuring the pressure in the lines, adding another gauge should not change the pressure.
Reply
Old Mar 3, 2006 | 01:28 PM
  #5  
GgreyEVOIX's Avatar
Evolved Member
iTrader: (5)
 
Joined: Oct 2005
Posts: 674
Likes: 2
From: CA
On my sti I had a defi gauge mounted on the steering column and I had a turbosmart E-boost mounted in the cup holder( the ebc doubles as a boost gauge)
Reply
Old Mar 3, 2006 | 01:55 PM
  #6  
56Hotrod's Avatar
Evolving Member
iTrader: (3)
 
Joined: Aug 2005
Posts: 241
Likes: 0
From: SC
For a boost gage, it will not matter...You could install many if you like. Some of my pressure instrumentation on gas turbines use 0.040" metal lines (hypo) for reading pressure. Those lines are extremely long too. If you were interested in response on the order of 100ths of a psi, then length could come into play, but the lengths associated with an automobile, you'd never see a difference.
Reply
Old Mar 3, 2006 | 01:56 PM
  #7  
topics's Avatar
Newbie
iTrader: (3)
 
Joined: Dec 2003
Posts: 49
Likes: 0
From: Bucks County
of course you can...
Reply
Old Mar 3, 2006 | 02:03 PM
  #8  
Ev0ikon's Avatar
Evolved Member
iTrader: (18)
 
Joined: Jan 2004
Posts: 3,677
Likes: 11
From: 3rd Rock {from = sun}
Aaaw Dawg!Have one gauge for each eyeball. Setup 4 if you wear glasses :P
Bt seriously, try to keep the "volume" down (think inside diameter of the hose) because the more "volume" you have the longer it takes to compress "spool" the turbo.
Reply
Old Mar 3, 2006 | 02:31 PM
  #9  
JeffR116's Avatar
Evolving Member
iTrader: (3)
 
Joined: May 2004
Posts: 445
Likes: 0
From: Seattle, WA
Change your settings on the setup.ini file in your ecu.

gauge.map.allowed={true}
gauge.map.maximum={5}

You should be good to go from there.
Reply
Old Mar 3, 2006 | 02:34 PM
  #10  
EviL_IX's Avatar
Newbie
 
Joined: Dec 2005
Posts: 96
Likes: 0
From: ca
i have stock mitsu boost guage and my autometer gauge tapped into the stock gauge vacuum hose
Reply
Old Mar 3, 2006 | 02:39 PM
  #11  
lexat20's Avatar
Thread Starter
Evolved Member
iTrader: (24)
 
Joined: Mar 2005
Posts: 2,017
Likes: 1
From: thrillville, IL
thanks everyone.
Reply
Old Mar 3, 2006 | 02:46 PM
  #12  
sonicnofadz's Avatar
Evolved Member
iTrader: (4)
 
Joined: Jan 2006
Posts: 2,726
Likes: 3
From: Baltimore, MD
Originally Posted by JeffR116
Change your settings on the setup.ini file in your ecu.

gauge.map.allowed={true}
gauge.map.maximum={5}

You should be good to go from there.
rofl
Reply
Old Mar 3, 2006 | 03:07 PM
  #13  
Brianb's Avatar
Newbie
 
Joined: Jan 2005
Posts: 88
Likes: 0
From: Columbus, Ohio
Originally Posted by GgreyEVOIX
On my sti I had a defi gauge mounted on the steering column and I had a turbosmart E-boost mounted in the cup holder( the ebc doubles as a boost gauge)
How did you like the Turbosmart product?
Reply
Old Mar 3, 2006 | 03:58 PM
  #14  
sivs's Avatar
Evolving Member
iTrader: (10)
 
Joined: Jul 2003
Posts: 173
Likes: 1
From: PA
Tee 1 boost gauge off of ur manifold ater the throttle body and put 1 off ur turbo outlet 2 moniter pressure drop better
Reply
Old Mar 3, 2006 | 07:19 PM
  #15  
56Hotrod's Avatar
Evolving Member
iTrader: (3)
 
Joined: Aug 2005
Posts: 241
Likes: 0
From: SC
Originally Posted by Ev0ikon
Bt seriously, try to keep the "volume" down (think inside diameter of the hose) because the more "volume" you have the longer it takes to compress "spool" the turbo.
Not correct. It is a closed system. This is why you don't hear air leaking out of your boost gage inside the car. The line is filled with air...think of it as hydraulic fluid. The only movement inside the line is enough to compress a spring a few 10ths of an inch. There is basically no flow in these lines cause they are closed within the system.

The air pressure difference will travel at pretty much the speed of sound (relative to atmospheres)...therefore, when the turbo spools up, your boost gage reacts a time equal to the length of the line over the relative speed of sound...something you'd be hard pressed to even measure.
Reply



All times are GMT -7. The time now is 01:58 PM.