• Welcome to Ecoboost Performance Forum. Please log in or sign up.
collapse

2 bar vs 3 bar map

Started by f8tlSHO, June 12, 2015, 02:24:57 PM

Previous topic - Next topic
Print
Go Down Pages1
User actions

f8tlSHO

June 12, 2015, 02:24:57 PM
A two bar is good for 29.xxx psi correct? What's the point to change to a 3 bar on the SHO? Pretty sure these tunes are not doubling the stock boost.. Correct me if I am wrong.


Sent from my iPhone
2013 Non PP Unleashed 93 E20 3 Bar Tune, K&N drop in 12.491 @ 110.96 120's IAT
Now tuned by ajp...looking to go faster
E30 tune on14psi full weight including 2 child seats,race like a real street car.
12.433 @110.8 140's IAT; Mustang Dyno 332hp / 386tq

BiGMaC

#1
June 12, 2015, 02:31:27 PM
Regardless of boost the 3BAR and tune mods make a better performing car due to more incremental adjustments to the ECU.  2BAR can only read 14.7 psi boost and most people actually cruise at 10-12, but if there is a spike like going WOT the 3Bar can read it and the ECU can use it.  Had mine about a year and love it compared to the 2BAR. The small turbos we have can't generate more than 18-20 psi.

•2013 Taurus SHO nonPP - All Ford factory options, 3BAR MAP, LMS v8 tune (mods for 3BAR, DPs, and T-stat), Paint & plastic correction, CQuart finest all exterior surfaces, limo black window tint,VLED Triton switchbacks, Daytime BrightLites switchback DRLs, full interior and exterior LED conversion, Lamin-X charcoal blackout tail lights and reflectors, PPE catted and coated downpipes, EBPP coated hotpipes with BoVs VTA, MDesign CAI
•2013 F250 CC Lariat 6.7EB Diesel -stock

f8tlSHO

#2
June 12, 2015, 02:41:39 PM

Quote from: BiGMaC on June 12, 2015, 02:31:27 PM
Regardless of boost the 3BAR and tune mods make a better performing car due to more incremental adjustments to the ECU.  2BAR can only read 14.7 psi boost and most people actually cruise at 10-12, but if there is a spike like going WOT the 3Bar can read it and the ECU can use it.  Had mine about a year and love it compared to the 2BAR. The small turbos we have can't generate more than 18-20 psi.
Why can a 2 bar map only read 1 bar worth of psi? 1 bar is 14.5psi


Sent from my iPhone
2013 Non PP Unleashed 93 E20 3 Bar Tune, K&N drop in 12.491 @ 110.96 120's IAT
Now tuned by ajp...looking to go faster
E30 tune on14psi full weight including 2 child seats,race like a real street car.
12.433 @110.8 140's IAT; Mustang Dyno 332hp / 386tq

SHOdded

#3
June 12, 2015, 02:46:41 PM
The terms "2 bar" and "3 bar" refer to absolute pressure.  When we talk about boost we talk about pressure over and above atmospheric pressure, which is defined as 1 bar or 14.7 psi.  So a 2 bar sensor can sense 1 bar worth of BOOST (14.7), and a 3 bar can sense 2 bars worth of BOOST (29.4 psi).
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

f8tlSHO

#4
June 12, 2015, 02:48:23 PM
My brother has a 15' ecoboost mustang. He said on a 3rd gear pull he can hit 20lbs of boost with a stock tune. They have a 2.5bar map


Sent from my iPhone
2013 Non PP Unleashed 93 E20 3 Bar Tune, K&N drop in 12.491 @ 110.96 120's IAT
Now tuned by ajp...looking to go faster
E30 tune on14psi full weight including 2 child seats,race like a real street car.
12.433 @110.8 140's IAT; Mustang Dyno 332hp / 386tq

f8tlSHO

#5
June 12, 2015, 02:49:28 PM Last Edit: June 12, 2015, 02:51:14 PM by f8tlSHO
Quote from: SHOdded on June 12, 2015, 02:46:41 PM
The terms "2 bar" and "3 bar" refer to absolute pressure.  When we talk about boost we talk about pressure over and above atmospheric pressure, which is defined as 1 bar or 14.7 psi.  So a 2 bar sensor can sense 1 bar worth of BOOST (14.7), and a 3 bar can sense 2 bars worth of BOOST (29.4 psi).
So basically the atmosphere is 1 bar..


Sent from my iPhone
2013 Non PP Unleashed 93 E20 3 Bar Tune, K&N drop in 12.491 @ 110.96 120's IAT
Now tuned by ajp...looking to go faster
E30 tune on14psi full weight including 2 child seats,race like a real street car.
12.433 @110.8 140's IAT; Mustang Dyno 332hp / 386tq

SHOdded

#6
June 12, 2015, 03:21:39 PM
Correct.
Quote from: f8tlSHO on June 12, 2015, 02:48:23 PM
My brother has a 15' ecoboost mustang. He said on a 3rd gear pull he can hit 20lbs of boost with a stock tune. They have a 2.5bar map


Sent from my iPhone
Not the same engine as the SHO, do you know if it is the same turbo?
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

f8tlSHO

#7
June 12, 2015, 03:42:01 PM
Yes I know it's a 2.3 single turbo. I highly doubt it's the same turbo. I would imagine it's a little bigger.


Sent from my iPhone
2013 Non PP Unleashed 93 E20 3 Bar Tune, K&N drop in 12.491 @ 110.96 120's IAT
Now tuned by ajp...looking to go faster
E30 tune on14psi full weight including 2 child seats,race like a real street car.
12.433 @110.8 140's IAT; Mustang Dyno 332hp / 386tq

f8tlSHO

#8
June 12, 2015, 03:43:29 PM

Quote from: SHOdded on June 12, 2015, 03:21:39 PM
Correct.
Ok, that solves that....3 bar it is..


Sent from my iPhone
2013 Non PP Unleashed 93 E20 3 Bar Tune, K&N drop in 12.491 @ 110.96 120's IAT
Now tuned by ajp...looking to go faster
E30 tune on14psi full weight including 2 child seats,race like a real street car.
12.433 @110.8 140's IAT; Mustang Dyno 332hp / 386tq

FoMoCoSHO

#9
June 12, 2015, 05:14:20 PM
Different turbo, I think it is Twin scroll....

PokerMunkee

#10
June 12, 2015, 05:32:58 PM
All the tuners recommend it, so I paid $60 and did it. 
2013 SHO PP - Ignot Silver/Charcoal
Unleashed 91 tune w/ 3BAR, Corsa exhaust, LEDs everywhere
2011 F-250 6.2 CCSB FX4

f8tlSHO

#11
June 12, 2015, 05:47:12 PM
I just wanted to make sure it was really needed.. Now that it's explained... 3 bar it is


Sent from my iPhone
2013 Non PP Unleashed 93 E20 3 Bar Tune, K&N drop in 12.491 @ 110.96 120's IAT
Now tuned by ajp...looking to go faster
E30 tune on14psi full weight including 2 child seats,race like a real street car.
12.433 @110.8 140's IAT; Mustang Dyno 332hp / 386tq

OmaHahn

#12
August 26, 2015, 02:23:11 PM
I have the MDesign and agree with the sensor issue - mine actually frickin fell out when mounted on the side of the intake tube!!!  The solution was simple though - just rotated the CAI so the rubber grommet hole is directly on top and sensor drops straight down.
2014 Silver SHO w/PP.  MODS: LME 93 Tune, 3-Bar Map, 160 Thermostat, MDesign Carbon Fiber CAI, H&R Springs, Cree LED Puddle Lights, LED License Plate Lights, LED DRL's, 20% Window Tint, Debaged trunk & added "3.5 Twin Turbo," & "SHO" emblems.

BiGMaC

#13
August 26, 2015, 02:59:12 PM
Quote from: OmaHahn on August 26, 2015, 02:23:11 PM
I have the MDesign and agree with the sensor issue - mine actually frickin fell out when mounted on the side of the intake tube!!!  The solution was simple though - just rotated the CAI so the rubber grommet hole is directly on top and sensor drops straight down.
I just went to Home Depot and bought a tighter grommet on Ahmad's (MDesign's) pre-emptive advise. He changed it for the second and third versions... Either way it's a non-issue as long as the sensor connecting wires will reach it.

•2013 Taurus SHO nonPP - All Ford factory options, 3BAR MAP, LMS v8 tune (mods for 3BAR, DPs, and T-stat), Paint & plastic correction, CQuart finest all exterior surfaces, limo black window tint,VLED Triton switchbacks, Daytime BrightLites switchback DRLs, full interior and exterior LED conversion, Lamin-X charcoal blackout tail lights and reflectors, PPE catted and coated downpipes, EBPP coated hotpipes with BoVs VTA, MDesign CAI
•2013 F250 CC Lariat 6.7EB Diesel -stock
Print
Go Up Pages1
User actions