<VV>Vapor Lock

[Jim Burkhard]

But why would you want to? Diesel is not a knock-reducing fuel.  Not only
that, but the high T90 point (temperature at which 90% of the mixture is
boiled on when doing a distillation curve) is MUCH higher than gasoline,
which really can really screw up the new fuel's driveability index (measure
of how well the fuel impacts driveability on a warming engine). Sure, if you
want to take the homeopathic medicine approach and stick in an eyedropper
full, you will not notice any change (nor any benefit).  Why are people
always so inclined to futz with whatever they know the least about?
Everybody with a dirty pyrex measuring cup in their garage thinks they can
outsmart the PhD organic chemists...  If there was a miracle improve-all
benefit to doing this, the oil companies would have been doing it years ago.
They woul dlove the flexibility to do it when they needed, to balance
refinery output -- helps them squeeze the most $ out of a barrel of crude.

If all you are looking to do is reduce vapor lock, there are some better
options.

1. Fix the problem on your car. Most of us don't have the issue.  
2. Install an electric fuel pump.
3. Stop shopping at gas stations that are really selling you E10 (10%
ethanol / 90% gasoline) instead of real gasoline. Generally, the E10 is
allowed to be 1 psi higher in Reid Vapor Pressure (measure of volatility)
than the gasoline.
4. Buy a drum of gasoline, put a vented top on it and leave it in the sun.
This will become low volatility fuel in short order.

OK, the last one is a bit facetious...  :-)
Jim Burkhard
CORSA  

> -----Original Message-----
> From: virtualvairs-bounces at corvair.org 
> [mailto:virtualvairs-bounces at corvair.org] On Behalf Of Padgett
> Sent: Thursday, August 11, 2005 1:18 AM
> To: virtualvairs at corvair.org
> Subject: <VV>Vapor Lock
> 
> 
> Think whether you could run on diesel would depend a lot on 
> the compression 
> ratio, since it was mentioned at an antique show the person 
> may have been 
> talking about 5 or 6:1. Wouldn't be surprised back in the 
> daze of A and C 
> rations if it wasn't common to extend a gasoline ration with 
> heating oil or 
> kerosine.
> 
> Isn't the Army version of the Hummer designed to be multifuel ?
> 
> Padgett