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Re: CNG / Propane conversions for diesels ??????   Message List  
Reply | Forward Message #27137 of 28067 |
FYI: If you can hit the go peddle hard enough to get smoke out of pipe (diesel
smoke, not oil burning!) in a NA diesel, I don't think you want to add propane.

Think about it. If you have enough diesel injected that not all of it is
burning (smoke) that means you don't have enough air(oxygen). So, now you want
to inject another gas in there that will displace some air in the intake?

It just don't make sence to me! If you can make smoke, and want more power, you
want to get more oxygen in there.. IE maybe an NO2 bottle.. but only when you
are hammering it.. ( to clean up the smoke and get more power) anytime its
running smokeless its running lean, and you don't need more O2.

Just my .02 cents... :)

Arnie G

P.S. with a turbo you can get more O2 in there, so if you are not smokeing, add
some propane, but if you are already smoking, it won't be all that much help..

______________________________________________________________________
1c. Re: CNG / Propane conversions for diesels
Posted by: "Collingwood Ted" tedcollingwood@... tedcollingwood
Date: Sat Jan 10, 2009 5:46 am ((PST))

That's another reason to do it on the Rabbit as it NA (no turbo) and you need
all the power it can give which it no much.


----- Original Message -----
From: Joseph Hupp
To: VW-TDI@yahoogroups.com
Sent: Friday, January 09, 2009 2:05 PM
Subject: [VW-TDI] Re: CNG / Propane conversions for diesels


Hi Tad,

Do not buy a system which injects BEFORE the turbo - otherwise you
could blow ya turbo to kingdom come!

Have a look at this Australian company's website for information on
post-turbo propane/LPG injection for diesel engines:
http://www.d-gas.com.au/

They are the only company in Australia to make a post-turbo LPG/Propane
injection system!

Joe






Sat Jan 10, 2009 9:16 pm

vhuntertdi
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Message #27137 of 28067 |
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FYI: If you can hit the go peddle hard enough to get smoke out of pipe (diesel smoke, not oil burning!) in a NA diesel, I don't think you want to add...
Arnie Grubbs
vhuntertdi
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Jan 10, 2009
9:42 pm

I follow your logic, however there's one point that I think you're missing. Your theory assumes a uniform mixure of air and fuel in the cylinder, and I think...
Tad
dolesman
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Jan 10, 2009
11:03 pm

To expand on this theory here... propane has only 3 carbon atoms and requires less oxygen per molecule to burn (diesel can have anywhere from 10-25 carbon)....
24 racing fan
kamaksi
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Jan 10, 2009
11:15 pm
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