07-31-2020, 01:05 AM | #1 |
Dumb Ass Deluxe
Drives: A Tricked Out Mountain Bike Join Date: Jun 2019
Location: Arizona
Posts: 1,959
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Octane and knock
I finally have the car broken in, I am playing with the octane. The manual says 93 and I've been blending it to around 93/95- (rough 10/1 ratio of 91 and xylene) since new.
Now i'm doing full throttle pulls and low speed stomps w/o dropping a gear and was seeing no KS action. Tonight, I dropped it down to 92(ish) and still no knock. I do not know what the IAT was, but the outdoor temp was 102-111 by the car t-meter. Has anyone else played with the octane to see the knock threshold is?
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07-31-2020, 01:13 AM | #2 |
Drives: like an old lady Join Date: Jun 2012
Location: indiana
Posts: 2,395
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when stock, mine knocked a touch around 5400 on 93 when it was 75* out, da was 2500ish.
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2016+ camaro: everyone’s first car
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07-31-2020, 12:14 PM | #3 |
Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016
Location: Norman, OK
Posts: 2,424
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How do you know what octane rating Xylene has, it is not regulated at all and is very inconsistent from brand to brand and batch to batch.
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2019 Corvette Z06 2LZ A8 - Halltech CAI, AWE non-catted X-pipe, Mamo V2 ported TB 592rwhp, bone stock 566rwhp
2017 Camaro SS 1LE - Procharger D1SC w/ Tial 2" BOV & Race intercooler / ARH full length catless headers / Alky meth injection system - 650rwhp on conservative tune SOLD |
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