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Discussion Starter · #1 ·
Can anyone give me the correct formula to convert the data from the VAG-COM log file to HP???
Or the mbar reading for the boost into PSI?
I made a few runs the other day and tried converting the data using a method someone gave me but doesn't seem right. Numbers were coming out either screwed up or really low..like around 105hp

Thanks for the help!
 

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Re: Formula to convert the data from the VAG-COM log file to HP??? (1.8TWolfsberg)

anyone...come on help us out http://****************.com/smile/emthup.gif http://****************.com/smile/emthup.gif
 

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Re: Formula to convert the data from the VAG-COM log file to HP??? (1.8TWolfsberg)

1 bar = 14.7psi
and this thread... http://forums.vwvortex.com/zerothread?id=1242731 ... answers your block 120 hp numbers...which arent all that accurate...your better off running a butt dyno with vag(do a search in the 18t forum for block and formulas) or just get the car on a dyno if your that curious of ALL the power your putting down
 

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Re: Formula to convert the data from the VAG-COM log file to HP??? (1.8TWolfsberg)

To find HP from TQ reading (in N-m):
- First convert TQ in N-m to lb-ft by mulitplying TQ by 0.738
- multiply the TQ (in lb-ft)*rpm and divide it by 5252.
To convert mbar to PSI:
- Substarct absolute presure from mbar reading
- Divide by 1000 to find bar
- Multiply by 14.50377 to find PSI


Modified by ROCKnRLR at 10:24 AM 2-16-2004
 

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Re: Formula to convert the data from the VAG-COM log file to HP??? (ROCKnRLR)

cool...thanks alot...that is exactly what we are looking for http://****************.com/smile/emthup.gif http://****************.com/smile/emthup.gif
we were using this equation and getting some EXTREMELY low hp #'s and TQ #'s that looked to be right on

Nm*.738=TQ
TQ*(RPM/5252)
Thanks for helpin out http://****************.com/smile/emthup.gif http://****************.com/smile/emthup.gif
 

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Re: Formula to convert the data from the VAG-COM log file to HP??? (SpooledAWP)

Actually, I made a mistake, you have to multipply TQ (N-m) * .738 instead of dividing as I previously stated, sorry.
 

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Re: Formula to convert the data from the VAG-COM log file to HP??? (SpooledAWP)

Yes, the equation is right. The more modded ur car is the more it will deviate from reality. ie, when I put a 4bar FPR in my VR6 the numbers get totally skewed.
 

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Re: Formula to convert the data from the VAG-COM log file to HP??? (SpooledAWP)

ok...i went out and did a couple more new runs...here is my graph...i still think these #'s are a bit low for the mods i have but...not to bad for a tip none the less
...what do you all think?? http://****************.com/smile/emthup.gif http://****************.com/smile/emthup.gif
 
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