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Old 06-30-2003, 06:44 AM   #1
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93 octane limits

I'm thinking of getting higher compression pistons for my b16a. How high can I go running 93 octane?
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Old 06-30-2003, 01:54 PM   #2
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probably around 11.5:1 just to be safe you can probably run 12:1 with an octane booster or extra fuel and retard the timing.
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Old 06-30-2003, 03:39 PM   #3
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Any idea how much power 11.5:1 would produce in a b16a? What about in addition to that boring the cylinders out to 1.8 liters?
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Old 06-30-2003, 04:16 PM   #4
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i don't know how much power it will get you. i got some ctr pistons and i'm going to match them up with some eagle rods and ACL bearings(same type used in f1 racing) with a mugen headgasket and the compression ratio was around 11.1:1 so i'll let you kow once i get it done.
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Old 06-30-2003, 07:50 PM   #5
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im running the CTR pistons and eagle rods too, comp ratio in the b16a should be around 11.5:1
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Old 07-01-2003, 04:18 PM   #6
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Quote:
Originally posted by crxlvr
im running the CTR pistons and eagle rods too, comp ratio in the b16a should be around 11.5:1
what kind of head gasket are you using if its a one layer then yes if it a 2 layer then it should be aroung 11.1:1.
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Old 07-01-2003, 10:29 PM   #7
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mine is 1 layer
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Old 07-02-2003, 03:30 AM   #8
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A gasket is another part I was thinking of getting to raise compression but I haven't looked into it much. Are there only 1 or 2 layer options? Are the thin ones less reliable? Also what brands make the thin ones?
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Old 07-02-2003, 05:45 PM   #9
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spoon, mugen,toda, mr. gasket, and there are some more.
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