whats octane with a streetport na and all the blot ons
I have a 89 with a large street port and rb header, high flow cat, and exhaust, Blitz intake dual pulleys. should i still use 87
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On a S4? Yes still use 87 octane. There is no need to increase octane unless you have upped compression or boost. If you have done neither dont worry about octane.
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sweet, 87 is so cheap compared to 93 these days
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shoot an n/a periferial port should probobly still use 87. it might even help sinca at those cimd of rpms there is very little time for each ignition event to occur.
i swear the oil companies have brainwashed amercia in to blindly thinking premium gas is inherently better when t is fact worse for about 90% of the cars out there. unless you have 1O.5:1<compression, or forced induction, YOU DONT NEED PREMIUM!!!!! |
80 is best :) i wish we had that at the pumps when i had my n/a
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Ya non-turbo 13Bs were designed by Mazda to run lower octane than 87 octane, somewhere around 83. Unless you have FI or raised compression, dont worry about it.
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