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Author Topic: max compression on pump gas for a 660?  (Read 2918 times)

Offline racinjason68

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Re: max compression on pump gas for a 660?
« Reply #15 on: August 17, 2008, 09:56:55 PM »
throw me a bone....


11:1 on 87 octane  at 1000ASL??     ???



guys doing 87 @ 5000ASL  so does that mean with me at 1000 that I need more octane?   Think I am a bit confused I have now been told both ways.
« Last Edit: August 17, 2008, 10:03:57 PM by racinjason68 »
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Offline russ-russ

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Re: max compression on pump gas for a 660?
« Reply #16 on: August 17, 2008, 10:05:40 PM »
Quote from: racinjason68 on August 17, 2008, 09:56:55 PM
throw me a bone....


11:1 on 87 octane  at 1000ASL??     ???



guys doing 87 @ 5000ASL  so does that mean with me at 1000 that I need more octane?   Think I am a bit confused I have now been told both ways.
Yes, lower altitude will require higher octane.  I'd run 91 with 11:1 at 1000ASL.
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Offline racinjason68

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Re: max compression on pump gas for a 660?
« Reply #17 on: August 17, 2008, 10:08:09 PM »
awesome...    well damn didnt really want to run 91 but....   P&P and  HC stage 2 cam with 11:1 guess I will have to do 91.


was told to go with stage 3 as there is not much bottom difference but alot on top.
« Last Edit: August 17, 2008, 10:23:34 PM by racinjason68 »
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