A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

does anyone know conversion from MBAR to psi?

Thread Tools
 
Search this Thread
 
Old Oct 27, 2003 | 05:13 PM
  #1  
Tongpo~Dr. Evil's Avatar
Thread Starter
Member
 
Joined: Aug 2000
Posts: 5,325
Likes: 0
Default does anyone know conversion from MBAR to psi?

i logged a few runs tonight with vag-com attached on block 115. it spit out raw data, i wanna change the mbars to PSI but don't know the conversion...
Reply
Old Oct 27, 2003 | 05:17 PM
  #2  
mchang's Avatar
AudiWorld Senior Member
 
Joined: Mar 2003
Posts: 1,493
Likes: 0
Default google: 1 mbar to psi

built in conversion r0x
Reply
Old Oct 27, 2003 | 05:18 PM
  #3  
unregistered user's Avatar
New Member
 
Joined: Jan 2003
Posts: 339
Likes: 0
Default

or stfa even
Reply
Old Oct 27, 2003 | 05:20 PM
  #4  
Tongpo~Dr. Evil's Avatar
Thread Starter
Member
 
Joined: Aug 2000
Posts: 5,325
Likes: 0
Default i did STFA-

there's too many opinions in there as to which is best.
Reply
Old Oct 27, 2003 | 05:21 PM
  #5  
Tongpo~Dr. Evil's Avatar
Thread Starter
Member
 
Joined: Aug 2000
Posts: 5,325
Likes: 0
Default

would rather a formula since it's a log with over 2000 rows of data...
Reply
Old Oct 27, 2003 | 05:25 PM
  #6  
mchang's Avatar
AudiWorld Senior Member
 
Joined: Mar 2003
Posts: 1,493
Likes: 0
Default that is your formula

1 millibar = 0.0145037738 pounds per square inch

multiply your millibar by 0.0145037738 to get psi.
Reply
Old Oct 27, 2003 | 05:32 PM
  #7  
homeslice's Avatar
AudiWorld Senior Member
 
Joined: Aug 2002
Posts: 1,222
Likes: 0
From: Los Angeles
Default Try this

Mbar - 1013 divided by 1000 = Bar

Bar x 14.5 = psi
Reply
Old Oct 27, 2003 | 05:36 PM
  #8  
Tongpo~Dr. Evil's Avatar
Thread Starter
Member
 
Joined: Aug 2000
Posts: 5,325
Likes: 0
Default and there-in lies the problem...

spec. actual
1510 1000
1790 1120
1880 1260
1890 1600
1840 1870
1740 1770
1620 1620
990 1590

if you plug in the formula you had up there, we're looking at


21.90069844 14.5037738
25.9617551 16.24422666
27.26709474 18.27475499
27.41213248 23.20603808
26.68694379 27.12205701
25.23656641 25.67167963
23.49611356 23.49611356
14.35873606 23.06100034


as the PSI conversion...hmm...don't think i'm getting 27psi off an apr chip...see my dilemma with conversions?!?!?

on the other hand, i found another formula

(mBar-1013.23)/1000*14.50377

which makes the numbers more feasible, but it would mean i'm either having a boost leak or i'm just running very low boost- max outta all my runs with that conv. factor is 13.01psi....max requested 13.15....
Reply
AudiWorld Stories

Bringing Audi to Life for Audi Fans

story-0

Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!

 Verdad Gallardo
story-1

The Highs & Lows of Every Audi C-Class Generation

 Joe Kucinski
story-2

Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer

 Brett Foote
story-3

10 Audi Features & Options We Miss the Most!

 Joe Kucinski
story-4

Audi Recreates Crazy-Looking Speed Record Breaker From 1935

 Verdad Gallardo
story-5

Coachbuilder Recreates the 1995 Audi TTS Concept

 Verdad Gallardo
story-6

Every Audi V10 Car Ranked!

 Joe Kucinski
story-7

9 Audi Designs That Aged Like Fine Wine

 Verdad Gallardo
story-8

2026 Audi Q5 Buyer's Guide (Every Model Explained)

 Brett Foote
story-9

Ranking Every Current Audi 'S' Model From Worst to First!

 Joe Kucinski
Old Oct 27, 2003 | 05:39 PM
  #9  
Tongpo~Dr. Evil's Avatar
Thread Starter
Member
 
Joined: Aug 2000
Posts: 5,325
Likes: 0
Default

yeah, that's the other forumla i tried- thanks for giving help =)
Reply
Old Oct 27, 2003 | 05:42 PM
  #10  
lost in beer country's Avatar
AudiWorld Member
 
Joined: Sep 2001
Posts: 578
Likes: 0
Default mbar x 0.0145=psi but as QuattroForge said you will have to take out

1000 mbar give or take for your altitude.
Reply



All times are GMT -8. The time now is 05:23 PM.

story-0
Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!

Slideshow: Limited to just 499 units, the 987-horsepower halo car signals a new chapter for Audi performance.

By Verdad Gallardo | 2026-06-04 17:37:15


VIEW MORE
story-1
The Highs & Lows of Every Audi C-Class Generation

Slideshow: The highs and lows of every Audi C-Class generation.

By Joe Kucinski | 2026-05-27 16:05:50


VIEW MORE
story-2
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer

People were more than happy to shell out big bucks for these cars.

By Brett Foote | 2026-05-27 15:32:23


VIEW MORE
story-3
10 Audi Features & Options We Miss the Most!

Slideshow: 10 Audi features and options we miss the most.

By Joe Kucinski | 2026-05-12 19:33:47


VIEW MORE
story-4
Audi Recreates Crazy-Looking Speed Record Breaker From 1935

Slideshow: Audi has recreated one of the wildest machines of the pre-war speed-record era, reviving a streamlined V16 racer that originally exceeded 200 mph in 1935.

By Verdad Gallardo | 2026-05-11 09:49:34


VIEW MORE
story-5
Coachbuilder Recreates the 1995 Audi TTS Concept

Slideshow: A Dutch coachbuilder has reimagined the original Audi TT by finishing what the 1995 concept only hinted at.

By Verdad Gallardo | 2026-05-05 15:17:58


VIEW MORE
story-6
Every Audi V10 Car Ranked!

Slideshow: Ranking every Audi V10 road car

By Joe Kucinski | 2026-04-29 16:11:56


VIEW MORE
story-7
9 Audi Designs That Aged Like Fine Wine

Slideshow: A look back at the Audis that didn't just survive changing tastes, they quietly outgrew them.

By Verdad Gallardo | 2026-04-28 19:38:27


VIEW MORE
story-8
2026 Audi Q5 Buyer's Guide (Every Model Explained)

One year off a full redesign, the best-selling Q5 is getting a few more updates.

By Brett Foote | 2026-04-17 09:56:19


VIEW MORE
story-9
Ranking Every Current Audi 'S' Model From Worst to First!

Slideshow: Ranking every current Audi 'S' model on sale today from worst to best.

By Joe Kucinski | 2026-04-16 10:28:28


VIEW MORE