Shiv, Question for you on the new boost gauge

forza1976 · 07-17-2010, 06:09 PM

Shiv, quick question. Being I'm at 5200 feet, I typically see about -2.5 at idle on my boost gauge. What I noticed today driving around is the fuel gauge doesn't quite register under very low boost. My question to you, being i'm at -2.5 starting point, will I need the car to be making ~2.5psi boost before the needle actually starts to move?

Appreciate it in advance.

OpenFlash · 07-17-2010, 10:57 PM

Quote:

Originally Posted by forza1976

Shiv, quick question. Being I'm at 5200 feet, I typically see about -2.5 at idle on my boost gauge. What I noticed today driving around is the fuel gauge doesn't quite register under very low boost. My question to you, being i'm at -2.5 starting point, will I need the car to be making ~2.5psi boost before the needle actually starts to move?

Appreciate it in advance.

You are exactly right. In this sense, the Procede's boost gauge represents boost above standard atmosphere pressure (14.5psi). So if you starting out at 12psi atmospheric, you'll need to build up 2.5psi before the needle starts to move.

Cheers,
shiv

forza1976 · 07-17-2010, 11:01 PM

Quote:

Originally Posted by shiv@vishnu

You are exactly right. In this sense, the Procede's boost gauge represents boost above standard atmosphere pressure (14.5psi). So if you starting out at 12psi atmospheric, you'll need to build up 2.5psi before the needle starts to move.

Cheers,
shiv

Thanks Shiv, much appreciated!

AltecBX · 07-17-2010, 11:26 PM

Interesting.
Shiv, would those people that set barometer in the procede adjust how the gauge starts for them?

OpenFlash · 07-17-2010, 11:37 PM

Quote:

Originally Posted by AltecBX

Interesting.
Shiv, would those people that set barometer in the procede adjust how the gauge starts for them?

Nope. That just adjusts how much boost they run at altitude. Not how their gauge is calibrated. But that feature is pretty useless these days since autotuning is always functional.

AltecBX · 07-17-2010, 11:56 PM

No I understand. What I'm saying is for the people running with the baro on for high altitude, then the boost gauge will be offset by 2.5psi I guess.
But if they don't use the baro setting, since autotune, then I don't see how it will change the way it starts the gauge for them.

OpenFlash · 07-18-2010, 12:05 AM

Quote:

Originally Posted by AltecBX

No I understand. What I'm saying is for the people running with the baro on for high altitude, then the boost gauge will be offset by 2.5psi I guess.
But if they don't use the baro setting, since autotune, then I don't see how it will change the way it starts the gauge for them.

It won't. It will continue to display boost above standard atmos pressure as it is intended to. Eventually, we will allow for user calibration to account for car to car variance and, if desired, atmos compensation.

Shiv

AltecBX · 07-18-2010, 12:08 AM

Quote:

Originally Posted by shiv@vishnu

It won't. It will continue to display boost above standard atmos pressure as it is intended to. Eventually, we will allow for user calibration to account for car to car variance and, if desired, atmos compensation.

Shiv

Ohh cool. Even better...

Damn Shiv, when will you stop working and kick back a cold one.

07-17-2010, 06:09 PM	#1
forza1976 Major General 3514 Rep 6,627 Posts Drives: BMW Join Date: Aug 2007 Location: 49456 iTrader: (13) Garage List 2022 BMW M3X [9.50]	Shiv, Question for you on the new boost gauge Shiv, quick question. Being I'm at 5200 feet, I typically see about -2.5 at idle on my boost gauge. What I noticed today driving around is the fuel gauge doesn't quite register under very low boost. My question to you, being i'm at -2.5 starting point, will I need the car to be making ~2.5psi boost before the needle actually starts to move? Appreciate it in advance.
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07-17-2010, 11:26 PM	#4
AltecBX Colonel 340 Rep 2,663 Posts Drives: BMW 335xi Sedan; BMW M3 ZCP Join Date: Nov 2007 Location: NYC iTrader: (0) Garage List 2018 BMW M3 ZCP [0.00] 2007 BMW 335Xi [0.00]	Interesting. Shiv, would those people that set barometer in the procede adjust how the gauge starts for them? __________________ 335xi Sedan 6AT \| Weather(70-85°F) \| N54 Tune Comparison Chart \|\| N54 Turbo Upgrade Comparison Chart -PROcede Rev. 2.5 ~ v5 (3/17 maps) / JB4 (8/21 maps) / COBB (Stg2+FMIC LT Aggressive maps) †Procede Map2(UT 45 - IGN 40) Aggression Target 2.0 \| 0-60 in 4.0sec \|\| †Cobb E30 LT (35% Ethanol/65% 93 Octane) \| 0-60 in 3.9sec AR Design Catless DP \| BMS DCI + OCC \| ETS 5 FMIC \| Alpina B3 Trans Flash \|235/265 19" Michelin PSS
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07-17-2010, 11:56 PM	#6
AltecBX Colonel 340 Rep 2,663 Posts Drives: BMW 335xi Sedan; BMW M3 ZCP Join Date: Nov 2007 Location: NYC iTrader: (0) Garage List 2018 BMW M3 ZCP [0.00] 2007 BMW 335Xi [0.00]	No I understand. What I'm saying is for the people running with the baro on for high altitude, then the boost gauge will be offset by 2.5psi I guess. But if they don't use the baro setting, since autotune, then I don't see how it will change the way it starts the gauge for them. __________________ 335xi Sedan 6AT \| Weather(70-85°F) \| N54 Tune Comparison Chart \|\| N54 Turbo Upgrade Comparison Chart -PROcede Rev. 2.5 ~ v5 (3/17 maps) / JB4 (8/21 maps) / COBB (Stg2+FMIC LT Aggressive maps) †Procede Map2(UT 45 - IGN 40) Aggression Target 2.0 \| 0-60 in 4.0sec \|\| †Cobb E30 LT (35% Ethanol/65% 93 Octane) \| 0-60 in 3.9sec AR Design Catless DP \| BMS DCI + OCC \| ETS 5 FMIC \| Alpina B3 Trans Flash \|235/265 19" Michelin PSS
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