Len -
The problem isn't pinging, it's the dieseling after you shut the motor off.
A standard spec BJ8 from the factory will absolutely require at least 92
octane to keep from plunking over when you turn the motor off. Luckily I
get 98 here in HK at the pump standard. Lots of ferraris, Astons, Rolls and
Bentley's here so they sell good gas here. Of course gas is $8 a gallon
here so it better be the good stuff!
Actually the fact you run your car pretty hard can help keep carbon deposits
off the pistons and valves which will help.
Alan
On Sun, May 4, 2008 at 1:51 PM, Leonard Hartnett <thehartnetts@earthlink.net>
wrote:
> Oh my gosh! Am I the only one that is running 87 octane in his Healey?
> And without aditives? I buy the least expensive gas that I can find in
> town. With most running in the $3.80 - $3.90 range, I found 'regular' at
> $3.77 this morning. My engine does not ping. I am not ashamed to run it in
> autocrosses or hillclimbs or other 'speed' events - fourth in class in 2002
> autocross, 2 seconds behind winner; 3rd in 2006 and 2nd in 2007; 69 MPH in
> the 2002 1/4 mile speed run - top three cars in class were tied at 70 MPH. I
> see no performance or economic advantage in using anything higher than
> needed.
>
> And I haven't had any problems with plugged injectors <G> .
>
> I am inclined to go along with Dave Porter: if your engine is pinging,
> perhaps you are in need of a tune-up.
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