Unless you are having pinging/pre-ignition issues, why bother? If you
have pinging then you need to raise the octane rating ALL THE TIME. If
not you will gain nothing by boosting the octane rating, "once in a while."
John
Markleville, USA
On 2/15/2012 9:46 AM, Stefano Iachella wrote:
Cats:
If one mixes a gallon or two of 110 racing fuel with pump gas,
what octane can one expect? Is it a straight calculation, like:
X = (2*110 + 9*91)/11, for an 11 gallon gas tank?
Just found a local cart racing shop that has it for $9.50/gallon.
Don't want to do it regularly, but wanted to try a little bit once
in a while.
In case flags go up about different cars, etc, I have a Spica
GTV with big valves on one car (no catalyst), and a Twin Spark
in the other car (no catalyst). The TS would normally expect
a minimum of 92 octane, but our max is 91 in CA.
Thanks,
Stefano
Concord, CA
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