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General Information => General => Topic started by: Smokey Eddy on December 29, 2008, 11:02:06 pm

Title: Crazy thought on propane injection
Post by: Smokey Eddy on December 29, 2008, 11:02:06 pm

Has anyone made a propane injection set up where you flick on the propane while idling, it triggers a solenoid to release propane into the intake and at the same time a servo turns down the idle screw (keeping the fuel screw in at max) so that you done over rev at idle with the propane added.


This application would be good for a max fueling set up consisting of
added diesel via fuel screw and big pump head/injectors and plunger
propane injection
water/methanol injection
and NOS added to completely burn all the added fuel.

Am i insane?
Is there any way this would work?
It all seems straight forward to me in a retarded and ignorant way.
I realize that the engine would likely run away and you wouldnt be able to idle or shift gears without expecting it to likely red line and blow up.

Title: Crazy thought on propane injection
Post by: zukgod1 on December 31, 2008, 10:35:06 am

Ya I think your nuts  8)

sounds like fun though.  :lol:

Title: Crazy thought on propane injection
Post by: saurkraut on December 31, 2008, 10:56:05 am

Propane (propain) is bad news in VW idi engines.  It takes very little to detonate.  And when you hear the detonation, you have atleast one cracked swirl chamber already.

Title: Crazy thought on propane injection
Post by: Smokey Eddy on December 31, 2008, 02:22:27 pm

oh god!
 :(

Title: Crazy thought on propane injection
Post by: jtanguay on December 31, 2008, 03:55:01 pm

i've heard of guys using a very small amount with very little gain...

DI engines benefit more from it... maybe i'll try it on my mTDI :)

Title: Crazy thought on propane injection
Post by: Smokey Eddy on December 31, 2008, 04:00:07 pm

You mean... try propane, nos and water/meth? 8)

Title: Crazy thought on propane injection
Post by: dillenger1 on January 01, 2009, 05:37:36 am

stick with water/meth 8)

Title: Crazy thought on propane injection
Post by: Smokey Eddy on January 01, 2009, 03:09:45 pm

Do you just always have it on hand at the push of a button?

Title: Crazy thought on propane injection
Post by: saurkraut on January 01, 2009, 06:36:23 pm

DVST8R had a thread on here about nitrous a while back.  As I recall, it worked well.  Nitrous is essentially more oxygen.  While propain is just more fuel, and tends to bust stuff.  Seems to me there was something in the FAQ...

Read:

FAQ By DVST8R
:Propane Vrs Nitrous (http://vwdiesel.net/phpBB/viewtopic.php?t=3699)

Title: Crazy thought on propane injection
Post by: Smokey Eddy on January 02, 2009, 10:47:17 am

SWEET! thanks saurkraut

Title: Crazy thought on propane injection
Post by: AudiVWguy on January 04, 2009, 10:09:27 am

I read an article about using Compressed Natural Gas (CNG) instead of Propane. Are the properties of this any better than Propane? If I recall, there was a fuel milage and power increase. I think it was used to increase the efficiency of the burn.  (Once again the was used on a new Direct Injection GMC pickup.)