<VV> Pinging Question

[Charles Lee]

Could it be that there are no deposits built up yet that can cause pinging, 
but that they are just "lurking" ?
So, using hi-test (91+) can prevent or forestall that problem ?

The original owner of my 1967 Monza complained that it pinged and knocked so 
badly that he was going to have it crushed, but I bought her before he could 
haul her away !

I did not realize at the time that the wrong can could be so severe, and 
thought I was looking at major engine work, but I could not let her go to 
the crusher.

I bought the car, barely making it the 20 miles home even in short "hops" 
with stops to "breathe" and cool down.

I didn't know about the octane be being a problem, but I treated her to a 
tank of 91 octane and was pleasantly surprised that the pinging went away 
about 100 miles or so.

Maybe you got lucky and you have a good engine that is more tolerant of low 
octane ?

Still though, buying hi-test is a minimal investment to avoid future 
problems, even if they're not a problem now ?

Good luck !
Charlie


----- Original Message ----- 
From: "Tony Underwood" <tony.underwood at cox.net>
To: <VirtualVairs at corvair.org>
Sent: Sunday, September 19, 2010 11:19 AM
Subject: Re: <VV> Pinging Question


> At 10:58 AM 9/19/2010, Bryan Blackwell wrote:
>>Even without audible ping, I would still use premium - 91 at
>>least.  I've recently spoken to a couple of Corvair owners who used
>>regular, and they couldn't hear it either but the cars ran better on
>>premium.  I suspect that the newer fuels burn a little slower, I
>>know back in the old days there was no way to run a 110 on regular
>>without dialing the timing back a lot or reducing the CR.
>
>
>
> That's still the way it seems to work today.    If I don't run
> premium in the 110 I drive daily, it pings.   I'm not real keen on
> backing off the timing to stop the pinging since it can cause the
> engine to run a little hotter than usual... in summer this isn't
> good.  I pay the extra dime/gallon and run premium.
>
>
> Except Citgo premium... which seems to ping anyway.
>
>
>
> tony..
>
>
>
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