Boost levels and Atmospheric Conditions thread - Page 3 - Pontiac Solstice Forum
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post #31 of 60 (permalink) Old 04-14-2009, 10:24 PM
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Flash's Owner,

Just want to thank you for doing this for us (me). It helped me feel better about the lower numbers I was seeing (knowing that it's not a problem and that the results are expected based on elevation and other factors).

I'm about to get the performance upgrade, so will post new info when I get it.

Thanks Again...
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post #32 of 60 (permalink) Old 04-15-2009, 06:53 AM Thread Starter
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kennysabarese

Boost level sustained: 23psi
Peak boost level: 23psi
Date and Time: 4/10/2009 3:00 PM EST
Nearest Airport: Newark Airport EWR
Performance Modifications: GMPP Turbo Performance Upgrade Kit


METAR KEWR 101851Z 15007KT 110V180 10SM OVC085 14/01 A3001 RMK AO2 SLP160 T01440011
Elevation: 18'

Density Altitude -114.2 ft

Absolute Pressure (station pressure) 29.99 in Hg

Relative Density (ISA) 100.33%
Actual Density (kg/m^3) 1.2291
Relative Humidity Relative Humidity = 41%

23PSI (DIC) = 37.7 PSI abs / 2.601 bar

I am a GM Engineer.

I do not claim to be a GM representative, all of my postings are my own interpretation and personal opinions.

I am a proud Solstice GXP owner (Flash). My wife, A FORMER GM engineer, is a proud Solstice GXP Coupe owner (Wicked).

My other hobby: hot turbo wastegate nut adjustment.
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post #33 of 60 (permalink) Old 04-15-2009, 07:46 AM
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Iím maxing my little turbo out up here.

4700í ASL

3rd Gear Pull
Initial 23 PSI Spike tapering off to 18 PSI at 6,500 RPMS.

4th Gear Pull

Initial 23 PSI Spike tapering off to 20 PSI at 6500 RPMs

Freeway Roll with Competitive Setting.

2008 Black/Black GXP, purchased 7/23 right off the train.
Mod#1 blacked-out headlights
Mod#2 GMPP Intake -I like to hear my turbo.
Mod#3 Special Sauce (23PSI)
Mod#4 Solo Street Race
Mod#5 Repaint w/ Custom Silver Stripes
'07 Charger R/T Mama's car
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post #34 of 60 (permalink) Old 04-15-2009, 08:35 AM
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Boost level sustained: 21psi
Peak boost level: 21psi
Date and Time: 4/9/2009 3:00 PM EST
Nearest Airport: Philadelphia PA
Performance Modifications: GMPP Turbo Performance Upgrade Kit, Dejon CAI, Dejon Intercooler Pipes

I wasn't trying all that hard.
Previously, before the Dejon equipment, I had hit 23psi.

LUSIFER has been Sold
I'm not short, I'm concentrated AWESOME
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post #35 of 60 (permalink) Old 04-15-2009, 11:37 AM Thread Starter
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Quote:
Originally Posted by bradyb View Post
Iím maxing my little turbo out up here.

4700í ASL

3rd Gear Pull
Initial 23 PSI Spike tapering off to 18 PSI at 6,500 RPMS.

4th Gear Pull

Initial 23 PSI Spike tapering off to 20 PSI at 6500 RPMs

Freeway Roll with Competitive Setting.
bradyb, I need your location or the nearest airport and date and time, in order to calculate your density altitude.



elff:
Boost level sustained: 21psi
Peak boost level: 21psi
Date and Time: 4/9/2009 3:00 PM EST
Nearest Airport: Philadelphia PA
Performance Modifications: GMPP Turbo Performance Upgrade Kit, Dejon CAI, Dejon Intercooler Pipes

METAR KPHL 091854Z 24014KT 10SM FEW075 17/M06 A2984 RMK AO2 SLP106 T01671061
Elevation 36'

Density Altitude 423.2 ft

Absolute Pressure (station pressure) 29.801 in Hg

Relative Density (ISA) 98.77%
Actual Density (kg/m^3) 1.2099
Relative Humidity Relative Humidity = 20%


21PSI (DIC) = 35.6 PSI abs / 2.457 bar

I am a GM Engineer.

I do not claim to be a GM representative, all of my postings are my own interpretation and personal opinions.

I am a proud Solstice GXP owner (Flash). My wife, A FORMER GM engineer, is a proud Solstice GXP Coupe owner (Wicked).

My other hobby: hot turbo wastegate nut adjustment.
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post #36 of 60 (permalink) Old 04-15-2009, 12:58 PM
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I already saved you the time, 4700' ASL. SLC 14:00 4/11/09

2008 Black/Black GXP, purchased 7/23 right off the train.
Mod#1 blacked-out headlights
Mod#2 GMPP Intake -I like to hear my turbo.
Mod#3 Special Sauce (23PSI)
Mod#4 Solo Street Race
Mod#5 Repaint w/ Custom Silver Stripes
'07 Charger R/T Mama's car
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post #37 of 60 (permalink) Old 04-16-2009, 06:26 PM
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These are my new numbers with the performance tune! awesome!

Boost level sustained: 17
Peak boost level: 18
Date and Time: 4/16/2009 5:45 PM EST
Nearest Airport: Westover Air Force Base (Chicopee, MA)
Performance Modifications: GMPP Performance Upgrade
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post #38 of 60 (permalink) Old 04-18-2009, 08:30 AM
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Boost level sustained: 19-20psi
Peak boost noted if different than the sustained level: 20psi
Date and time: 4/18/2009 : 9:30am EDT
Nearest airport: Phillips Army Airfield KAPG
Performance Modifications: GMPP Stage II kit, K&N Air Filter
This is a 5-speed manual

Almost can say 20psi was sustained, it was more than a "flash"

FYI, my dashhawk 0-60 time was 5.43, down a little from my pre-GMPP best time of 5.49 I did not try too many runs.

However, now I am losing a little bit of traction in the 1-2 gear shift, and prior to the GMPP upgrade, that did not happen, for me anyway. Think I still have some learning to do to get that time down some more. I know dashhawk times are not that reliable, but the on the same car for the same strip of road for the same driver, they are a fun comparison.

"Cool" 2007 GXP
Bought from the dealer May 7, 2007
Chromed Wheels- Monsoon Speakers-GM Mud Flaps
Visor Decals-Custom Plate Frame
Carolina Custom Leather Center Console Armrest
Red Brake Calipers with GXP decals
Davie's Hide-a-plate
K&N Air Filter
Dashhawk GEN II
GMPP Stage II Upgrade
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post #39 of 60 (permalink) Old 04-18-2009, 09:59 AM
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Boost level sustained: 20psi
Peak boost level: 21
Date and Time: 4/17/2009 3:00 PM gmt-7
Nearest Airport: lake havasu city airport AZ
Performance Modifications: see sig

i had lost preasure the day before went to 12. i checked the hose at the TB it was about ready to fall off, tightened clamp. now i get 21 peak in 1-4. have not went that far in 5. since i checked the hose it now gets 21 peak was 20 so it may have been the leak
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post #40 of 60 (permalink) Old 04-18-2009, 10:31 AM
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Quote:
Originally Posted by Mac View Post
i had lost preasure the day before went to 12. i checked the hose at the TB it was about ready to fall off, tightened clamp. now i get 21 peak in 1-4. have not went that far in 5. since i checked the hose it now gets 21 peak was 20 so it may have been the leak
I've read about that so much, it resulted in me throwing a little more money at Dejon. I really think their elbow is the permanent solution. It replaces that rubber hose and all the clamps are T-Bolts

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post #41 of 60 (permalink) Old 04-20-2009, 03:52 PM Thread Starter
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BRADYB:

Iím maxing my little turbo out up here.

4700í ASL

3rd Gear Pull
Initial 23 PSI Spike tapering off to 18 PSI at 6,500 RPMS.

4th Gear Pull

Initial 23 PSI Spike tapering off to 20 PSI at 6500 RPMs

Freeway Roll with Competitive Setting.

I already saved you the time, 4700' ASL. SLC 14:00 4/11/09


METAR KSLC 111953Z 00000KT 10SM FEW045 SCT070 SCT100 OVC140 12/01 A2977 RMK AO2 SLP059 T01220011
Altitude 4227'

Density Altitude 4894.9 ft

Absolute Pressure (station pressure) 25.668 in Hg

Relative Density (ISA) 86.44%
Actual Density (kg/m^3) 1.0589
Relative Humidity Relative Humidity = 47%

23PSI (DIC) = 35.6 PSI abs / 2.455 bar
20PSI (DIC) = 32.6 PSI abs / 2.248 bar
18PSI (DIC) = 30.6 PSI abs / 2.11 bar
================================================== ====

mimeauja:

These are my new numbers with the performance tune! awesome!

Boost level sustained: 17
Peak boost level: 18
Date and Time: 4/16/2009 5:45 PM EST
Nearest Airport: Westover Air Force Base (Chicopee, MA)
Performance Modifications: GMPP Performance Upgrade

METAR KCEF 162155Z 00000KT 10SM CLR 17/M09 A3022 RMK AO2A SLP237 T01671086
Elevation 241'

Density Altitude 233.4 ft

Absolute Pressure (station pressure) 29.958 in Hg

Relative Density (ISA) 99.32%
Actual Density (kg/m^3) 1.2167
Relative Humidity Relative Humidity = 16%

17PSI (DIC) = 31.7 PSI abs / 2.187 bar
18PSI (DIC) = 32.7 PSI abs / 2.256 bar

give it some time to learn a bit, then try again. I bet you will pick up another PSI or two.

================================================== ========

sunnygator:

Boost level sustained: 19-20psi
Peak boost noted if different than the sustained level: 20psi
Date and time: 4/18/2009 : 9:30am EDT
Nearest airport: Phillips Army Airfield KAPG
Performance Modifications: GMPP Stage II kit, K&N Air Filter
This is a 5-speed manual

Maryland Science Center closest weather:
METAR KDMH 181254Z AUTO 18/M05 A3012 RMK AO2 SLP199 T01781050 PWINO TSNO
METAR KDMH 181354Z AUTO 19/M04 A3012 RMK AO2 SLP200 T01941039 PWINO TSNO
Elevation: Approx 40' (ranges 20 to 50')

Density Altitude 291 ft

Absolute Pressure (station pressure) 30.077 in Hg

Relative Density (ISA) 99.15%
Actual Density (kg/m^3) 1.2146
Relative Humidity Relative Humidity = 21%

19PSI (DIC) = 33.8 PSI abs / 2.329 bar
20PSI (DIC) = 34.8 PSI abs / 2.397 bar

================================================== ==============

MAC

Boost level sustained: 20psi
Peak boost level: 21
Date and Time: 4/17/2009 3:00 PM gmt-7
Nearest Airport: lake havasu city airport AZ
Performance Modifications: see sig
2008 GXP
Auto
Air
Mud Gaurds
GMPP Tune
Solo Mach Shorty
Solo CAT
Norms T skirts



METAR KEED 172156Z AUTO 05008G21KT 020V090 10SM CLR 26/M03 A3002 RMK AO2 SLP146 T02561028
Elevation 983' (at KEED, needles, closest ASOS)


Density Altitude 2428.8 ft

Absolute Pressure (station pressure) 28.969 in Hg

Relative Density (ISA) 93.08%
Actual Density (kg/m^3) 1.1403
Relative Humidity Relative Humidity = 15%

20PSI (DIC) = 34.2 PSI abs / 2.36 bar
21PSI (DIC) = 35.2 PSI abs / 2.429 bar

================================================== ==============
Another recent run for FLASH:

Boost level sustained: 23
Peak boost level: 24
Date and Time: 2009.04.17 3:00 PM KPTK
Nearest Airport: Howell or Pontiac (KOZW or KPTK, Milford Proving Ground is 1/2 way between), using KPTK
Performance Modifications: GM PUpgrade Kit, 6 shortening wastegate turns from stock, stock intake/exhaust, top down


KPTK 171953Z 28010KT 10SM CLR 21/M03 A3029 RMK AO2 SLP261 T02061028
Altitude: 1000'

Density Altitude 1577.3 ft

Absolute Pressure (station pressure) 29.214 in Hg

Relative Density (ISA) 95.46%
Actual Density (kg/m^3) 1.1694
Relative Humidity Relative Humidity = 20%

23PSI (DIC) = 37.3 PSI abs / 2.575 bar
24PSI (DIC) = 38.3 PSI abs / 2.644 bar

I am a GM Engineer.

I do not claim to be a GM representative, all of my postings are my own interpretation and personal opinions.

I am a proud Solstice GXP owner (Flash). My wife, A FORMER GM engineer, is a proud Solstice GXP Coupe owner (Wicked).

My other hobby: hot turbo wastegate nut adjustment.
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post #42 of 60 (permalink) Old 04-21-2009, 08:50 AM
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Very Interesting Flash Man, thanks for the numbers.
You're running the GM Tune with the waste gate screws turned?

Just as an FYI, yesterday it was 73 degrees on the way home. At 6500 RPMS I was getting 17 PSI in 3rd and 18 PSI in 4th. I want a bigger turbo that can handle my alttitude. I don't want to worry about running Methanol but it sure would be slick to run 22-23 PSI all the way to 7,000 RPMS.

2008 Black/Black GXP, purchased 7/23 right off the train.
Mod#1 blacked-out headlights
Mod#2 GMPP Intake -I like to hear my turbo.
Mod#3 Special Sauce (23PSI)
Mod#4 Solo Street Race
Mod#5 Repaint w/ Custom Silver Stripes
'07 Charger R/T Mama's car
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post #43 of 60 (permalink) Old 04-21-2009, 12:13 PM
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Flash's Owner, thanks for doing this and all the other GM PUpgrade work you have done in the past.

My stats:
Boost level sustained: 140 kPa (20.3 psi) 3rd and 4th gear. Note 100 kPa sustained previously in stock condition.
Peak boost level: 140 kPa (20.3 psi)
Date and Time: 4/21/2009 13:00 EST
Nearest Airport: Hamilton International Airport, Ontario, Canada
Performance Modifications: GM Performacne Upgrade Kit, Solo Free-Flow CAT, Solo Mach Shorty, Wastegate adjusted 2 turns, T-Bolt clamps on TB hose at TB and Duct end.

2007 GXP, 13.3 [email protected] MPH, Auto, Loaded.

Mods: Solo Hi-Flow Cat & Mach Shorty, GMPP Tune, T-Bolt Clamps, DDM Race Backbone Brace, TSW Interlagos Wheels, 245mm F, 275mm R, H&R Sport springs lowering kit, RKSport ram air hood, Cobalt Spoiler, Dual horns, Illuminated Windrestrictor, Red calipers, Night Raider 3rd brake light, Window tint, Wood grain dash kit, Fuse box cover, Reversing detectors, HID headlights, Stainless Steel grill, Front mud guards, DDM twin cup holder centre console.
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post #44 of 60 (permalink) Old 04-21-2009, 02:10 PM Thread Starter
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Topdowneh:

My stats:
Boost level sustained: 140 kPa (20.3 psi) 3rd and 4th gear. Note 100 kPa sustained previously in stock condition.
Peak boost level: 140 kPa (20.3 psi)
Date and Time: 4/21/2009 13:00 EST
Nearest Airport: Hamilton International Airport, Ontario, Canada
Performance Modifications: GM Performacne Upgrade Kit, Solo Free-Flow CAT, Solo Mach Shorty, Wastegate adjusted 2 turns, T-Bolt clamps on TB hose at TB and Duct end.


METAR CYHM 211700Z 20018KT 15SM -SHRA FEW024 BKN031 OVC042 09/04 A2962 RMK CU2SC5SC2 SLP033
Elevation 780'

Density Altitude 700.6 ft

Absolute Pressure (station pressure) 28.793 in Hg

Relative Density (ISA) 97.97%
Actual Density (kg/m^3) 1.2001
Relative Humidity Relative Humidity = 71%

20.3PSI (DIC) = 34.4 PSI abs / 2.375 bar

I am a GM Engineer.

I do not claim to be a GM representative, all of my postings are my own interpretation and personal opinions.

I am a proud Solstice GXP owner (Flash). My wife, A FORMER GM engineer, is a proud Solstice GXP Coupe owner (Wicked).

My other hobby: hot turbo wastegate nut adjustment.
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post #45 of 60 (permalink) Old 04-21-2009, 02:45 PM
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Hey Flash Man, get Rob the Elder's numbers. He's up at 8,000 ASL and he's saying he can pull 23 PSI through third.

2008 Black/Black GXP, purchased 7/23 right off the train.
Mod#1 blacked-out headlights
Mod#2 GMPP Intake -I like to hear my turbo.
Mod#3 Special Sauce (23PSI)
Mod#4 Solo Street Race
Mod#5 Repaint w/ Custom Silver Stripes
'07 Charger R/T Mama's car
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