Wierd application, hypothetical question.

[Shirley, Mark R]

I am doing propane as well.  Propane tends to not work very well on a NA
diesel,
since you have little excess air to begin with.  Propane works on a
Turbodiesel
so well since you have an abundance of excess air, even if it is lower
density.
I have many SAE papers on this, and that was the consensus.

I hadn't thought of a wastegate controller.  There is still the dilemma of
creating
a boost bellows system.  

-----Original Message-----
From: justin ivan [mailto:vlkslvr at hotmail.com]
Sent: Tuesday, December 05, 2000 3:11 PM
To: diy_efi at diy-efi.org
Subject: RE: Wierd application, hypothetical question.


Pat ,
You raise an intersting point about a waste gate controller. Now did you 
mean an electronic version (Ala Apex i AVCR) or a regular mechanical waste 
gate actuator? Either would work well.
I agree with you notion of this being necessary at all, if it was deemed so 
I think that a mechanical format would be the best.
On a side note, not knowing too much about diesels, how about a propane 
injection instead of the turbo. I am not sure how well they work on a N/A 
deisel but I know that on a turo diesel they make phenomenal gains in hp and

esp torque.
Justin


>From: Pat Ford <pford at qnx.com>
>Reply-To: diy_efi at diy-efi.org
>To: diy_efi at diy-efi.org
>Subject: RE: Wierd application, hypothetical question.
>Date: Tue, 5 Dec 2000 14:50:57 -0500 (EST)
>
>use a waste gate controller its already designed to work at boost pressures

>in an automotive temp range and the use springs and levers to make your 
>curves. Once again are you sure you need to do this?
>
>Previously, you (Shirley, Mark R) wrote:
>{ That's a perfectly reasonable thought.  I just thought it would be much
>{ easier
>{ to tune with some sort of controller.  If I went pure mechanical, sure it
>{ would
>{ work, but i would have to have a lathe, and play around with many 
>different
>{ springs
>{ to tune it, (not user-friendly) and the worst part of it is coming up 
>with
>{ some sort of diaphragm.  The rest of it I could deal with, but the 
>diaphragm
>{ is tough.
>{ You almost have to know somebody somewhere who makes these things.  It 
>would
>{ have
>{ to be a rubber with a metal disc applied to seat the spring on.
>{ Not to mention that a controller would be a much cooler way to do it.  
>Much
>{ more tunable.
>{
>{ -----Original Message-----
>{ From: justin ivan [mailto:vlkslvr at hotmail.com]
>{ Sent: Tuesday, December 05, 2000 11:34 AM
>{ To: diy_efi at diy-efi.org
>{ Subject: Re: Wierd application, hypothetical question.
>{
>{
>{
>
>
>--
>Pat Ford                           email: pford at qnx.com
>QNX Software Systems, Ltd.           WWW: http://www.qnx.com
>(613) 591-0931      (voice)         mail: 175 Terence Matthews
>(613) 591-3579      (fax)                 Kanata, Ontario, Canada K2M 1W8
>
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