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What's the highest CR you can run SAFELY on 92 octane?

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Old 03-24-2006, 11:33 AM
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Default What's the highest CR you can run SAFELY on 92 octane?

Looking to optimize my setup, but trying to get all the facts straight. With my new setup it looks like I'll be running a 11.34 CR, but is that safe for 92 octane? Or should I knock it down to 11.2? Or lower? Thanks in advance for the help
Old 03-24-2006, 12:16 PM
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Originally Posted by tru_ice
Looking to optimize my setup, but trying to get all the facts straight. With my new setup it looks like I'll be running a 11.34 CR, but is that safe for 92 octane? Or should I knock it down to 11.2? Or lower? Thanks in advance for the help
Don't worry so much about the static. I am assuming you are doing H/C install??? You really need to know your DCR to determine what octane you can get away with. I have run 8.6 DCR on 93 octane with no problem... Maybe shoot for 8.5....

Old 03-24-2006, 12:19 PM
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8.8 is the max on 93. Id shoot for 8.5:1 DCR with your setup ray.

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Old 03-24-2006, 12:22 PM
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Originally Posted by Nate_Taufer
8.8 is the max on 93. Id shoot for 8.5:1 DCR with your setup ray.

Nate
What do I need to calculate that? I tried doing it the other day, but b/c I didn't know my ICA from my cam, I couldn't calculate it.
Old 03-24-2006, 12:34 PM
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Originally Posted by Nate_Taufer
8.8 is the max on 93. Id shoot for 8.5:1 DCR with your setup ray.

Nate
I don't want to high-jack this thread, BUT, are we sure about the 8.8 DCR on 93 octane fuel? It is hard to find "solid" information on the max DCR for 93 octane. If so, I will try for this number on my motor rebuild...





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