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Highest compression on pump gas

 
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Old 10-11-2009, 02:26 PM
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Highest compression on pump gas

What is the highest compression ratio you can run (while still operating well obviously) on pump gas?
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Old 10-11-2009, 02:51 PM
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Re: Highest compression on pump gas

This really has to do with how well you can get it tuned... Usually people stop using pump gas at 12.5:1 around there people start tuning to e85
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Old 10-11-2009, 03:00 PM
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Re: Highest compression on pump gas

asnoorian, your first post should not be a very unneeded bump.

The mods will now have their eyes on you.
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Old 10-11-2009, 03:44 PM
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Re: Highest compression on pump gas

Depends on many variables like bore size, cams, elevation, ethanol content, general engine efficiency and much more.
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Old 10-11-2009, 04:16 PM
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Re: Highest compression on pump gas

^x2 thought I said that there were many variables but apparently I didn't lol.
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Old 01-05-2010, 12:45 AM
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Re: Highest compression on pump gas

BTW, I just noticed that the Audi A8 is 12.5:1, I want a Direct Injection Engine.
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Old 11-17-2010, 05:03 PM
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Re: Highest compression on pump gas

New champ. The new Mazda Sky G engine sports 14:1 on 90 Octane. It's a 2l with 163hp (not impressed) and 155lb of torque (impressed).
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