W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Formula for Boost changes?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Sep 3, 2008 | 02:58 PM
  #1  
Exotic-metal55's Avatar
Thread Starter
PLATINUM SPONSOR
15 Year Member
 
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
Formula for Boost changes?

Are there any tricks or formulas to measure BOOST via Data-logging?

I know Atap has MAP pressure , engine load and a few other sensors but not sure how to use those to see boost level or changes.. Any ideas?
__________________



E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.

CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.

www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Reply
Old Sep 3, 2008 | 06:45 PM
  #2  
Vadim @ FD's Avatar
Banned
 
Joined: Mar 2006
Posts: 2,855
Likes: 2
From: Southern California
S600TT, R350
Read pressure in English units which are inHg. Than substact 30 and divide by 2.

For example, if you read 50 inHg. Less 30 = 20/2 = 10 psi.
Reply
Old Sep 28, 2008 | 04:31 PM
  #3  
Exotic-metal55's Avatar
Thread Starter
PLATINUM SPONSOR
15 Year Member
 
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
Using the above formula on my new ATAP update (version 3.2); I am seeing 60.9 in.hg@ 6200 rpm on todays runs. That translates to 15.25 lbs of boost? This is with a pulley and 80mm TB only. ATAP shows no signs of dumping boost or fuel yet..

It was 87 deg ambient and new I/C pump was working great! Full tank of gas and with a passenger, still spun tires hard from 28 mph punch and spun tires on second gear shift for the first time.. The 80mm TB really helped the pulley out!

It took 4 WOT throttle runs for the car to learn and settle in..

PS, the 3.2 version from ATAP really updates a lot quicker!
__________________



E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.

CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.

www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 01:23 PM.

story-0
8 Oddball Mercedes Ideas That Actually Made it to Production

Slideshow: Mercedes has never been afraid to experiment, and some of its strangest ideas turned out to be surprisingly successful.

By Verdad Gallardo | 2026-06-10 17:43:40


VIEW MORE
story-1
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

Sideshow: A Middle Eastern tuner has transformed the Mercedes-AMG G 63 into an open-top special, replacing nearly every exterior panel in the process.

By Verdad Gallardo | 2026-06-10 15:29:50


VIEW MORE
story-2
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-3
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-4
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-5
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-6
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-7
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-8
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-9
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE