<VV> Pinging Question Take deux

[jvhroberts at aol.com]

 The modern way of making octane has the HUGE advantage of not leaving lead deposits. I think, back then, the stated octane was research octane, which is about 8-10 points higher than motor octane. Hence the reason for the RON+MON/2 method. In other words, subtract about 5 octane points from the 1960s number to get a reasonable comparison with modern gasoline. 

At any rate, I remember octane "creep" on my engines back then, thanks to lead deposits in the combustion chambers adding hot spots and a bit of compression ratio. Not to mention all the deposits on the back of the valves. Something nearly unheard of in today's engines, or any engine running on today's gas. 

Never been a big fan of TEL for these reasons. 

 

John Roberts
 

 

-----Original Message-----
From: kaczmarek at charter.net
To: Virtualvairs at corvair.org
Sent: Mon, Sep 20, 2010 4:15 pm
Subject: Re: <VV> Pinging Question Take deux


Somehow my reply got zapped off what I sent.  Things that make you say hmmmmm. 

Anyway, I've not read the pinging thread as my system, although technically 
illegal, works very well. 

Drive the car till nearly empty.   Take your Non-Vair to the local private 
airport with your 5 gallon can, tell the attendant you have a dirt track racer 
and you want to buy 5 Gallons of 110 LL Aviation Gasoline.  Go home and put the 
gas in your vair, then drive to the gas station and fill the rest of the way 
with 93 Super Premium unleaded.  You will now have a tankful of approx 100 
Octane VERY LOW LEAD Gas. 

Now just drive the car.  That little bit of Tetraethyl Lead will cure not only 
pinging but many other funky sounds in your powerplant. 

I once had a friend fill my vair from the tanks on his airplane. 140 PG LM.  Car 
tore ass up the interstate with almost no foot in the pedal.  SO THAT'S how it's 
supposed to run, I thought to myself.     

I do the LL gas thing every 6 months. Your mileage may vary, especially if you 
feel you are harming the environment, as this practice is illegal under federal 
(EPA) regulations.  It's OK for a dirt track racer, so tell the attendant that's 
what you want it for. 

As for harming the environment, go take a look at the smog in China, where 
everyone's wearing dust masks all day when outside as they have no EPA and could 
give a crap less, then go outside and hug a tree, and you and your Vair will be 
feeling better shortly.  

Remember the high octane ethyl that Gulf sold?     NO-KNOX-----for a reason!!!

Hank 
 _______________________________________________
This message was sent by the VirtualVairs mailing list, all copyrights are the 
property
of the writer, please attribute properly. For help, mailto:vv-help at corvair.org
This list sponsored by the Corvair Society of America, http://www.corvair.org/
Post messages to: VirtualVairs at corvair.org
Change your options: http://www.vv.corvair.org/mailman/options/virtualvairs 
 _______________________________________________