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the Speedchannel just had a test concerning fuel octane......they ran a Porsche on a dyno.......with 94 octane then 89 octane......the car lost 5 hp and 10 ftlbs of torque with the cheap stuff........thats reason enough for me...
Yup, that happens when you retard the timing to allow an engine to run on fuel that has an octane rating that is too low. My Jensen interceptor could barely top 130 mph after I had to retune it when the stopped making 96 octane low lead.
On the other hand, it is a real buggar to adjust the timing on these Triumph engines to take some advantage of 90+ octane fuel.
Let's hope there's intelligent life somewhere in space 'cause it's buggar all down here. -- Monte Python
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