Compression for Nitrous
I
Joined: Jan 2001
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From: Westside til I die
As high as you want, as long as you don't detonate...get a good tunable system and you can go high.
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Apathy Kills
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From: The Left Lane
Originally Posted by aboobybobpleez
Whats a good compression ratio to run nitrous on the LS?
What type of system? Dry? Direct port?
What fuel grade? 91? 93? 110?
For a dry single port system and 91 octane, the stock CR of 9.2:1 is perfectly adequate.
If you're building a B18B specifically for nitrous and street gas, you could go up to 10.5:1 with relative safety... just watch out for detonation.
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Last edited by TheOtherDave™; Aug 3, 2005 at 12:40 PM. Reason: Fuel grade ?
I
Joined: Jan 2001
Posts: 56,525
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From: Westside til I die
He'd be fine at 11:1 too, that's what a stock RSX-S is. Ignition timing can be retarded and colder plugs run to combat detonation. Above that, and I'd get something more tunable, just to be safe.
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Team B.O.B.® - Ballaz on a Budget
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