I thought they all had low compression engines ..... There is little point to putting high octane petrol in a low compression motor :)
seeya,
Shane L.
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I thought they all had low compression engines ..... There is little point to putting high octane petrol in a low compression motor :)
seeya,
Shane L.
As far as i'm aware only the auto 83-85 rrc had a hicomp engine.
Sent from my GT-I9300 using AULRO mobile app
Possibly to offset the effects of advancing the timing into the next Century... all part of the BIM-024 'upgrade' :p:p:p
Possibly to mitigate the side-effects of advancing the timing:- into the next Century... all part of the BIM-024 'upgrade' :p:p:p
If it had its standard few degrees of advance, or even 8 to 10 I would agree, but I can keep 2 degrees more advance on my 101 by using high octane petrol - particularly in Summer as I get some pre ignition happening under full load using standard stuff, and I loose some power if I back it off to where it is happy on 91. With the rate it drinks fuel, a few dollars extra a tankful is not worth worrying about for that that is though. :)Quote:
Originally Posted by DoubleChevron
.. I thought 12 degrees was the 'Standard' advance... :o
:eek::twisted::eek:
6 degrees BTDC is standard, but 10 is normal if you want it to run right, beyond 12 on mine I've found issues with pre ignition under high loads.
10 on petrol and 12 on lpg.