Subject	obviously its a bit outside the scope of this chart...
Posted by	AntiHero on July 14, 2007 at 9:31 PM
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In Reply To	Quick Tech: Effective Compression, for beginners. posted by ni[X]it on July 14, 2007 at 06:37 PM
Message	But i'm assuming this chart was compiled with a specific octane in mind, any idea what it was? The limiting factor is detonation, no? Any mods that might have a significant effect that would not be obvious (h2o or alky injection) I am aware of the general guideline nature of the limits prescribed, but I'm just talking about generalities. Assuming you wanted to build a setup for >17:1 effective compression without adding another fluid to the mix, what would the most effective methods be? I'm guessing anything you can do to lower the temperature of the intake charge, combustion chamber, or incoming fuel would be a good way to start. Antihero These 2530's ain't half bad ;)
Follow Ups	Quick Tech: Effective Compression, for beginners. - ni[X]it 18:37:35 07/14/07 nice! (n/m) - spotz 18:46:49 07/14/07 Nice, but I think 1 bar = 14.503 psi at 0 elevation. - turtleboy 18:48:12 07/14/07 Well, I used 14.50377 - ni[X]it 18:51:20 07/14/07 Oh, it looks like you have 14.7 in your original post though - turtleboy 18:55:58 07/14/07 Given the significant digits when measuring engine variables - Kenny 18:57:54 07/14/07 Well technically the sig figs would be: - turtleboy 20:23:47 07/14/07 Right, so given 2 significant digits, it's correct. (n/m) - Kenny 23:34:04 07/14/07 2 Sig figs = 15.. but eh, who cares, I just interpreted his - turtleboy 23:36:04 07/14/07 That's what I said. (n/m) - Kenny 23:53:24 07/14/07 the 14.7 is atmospheric (Barometric). Not the same as BAR. - ni[X]it 18:59:07 07/14/07 Ah gotcha.. Nice work. (n/m) - turtleboy 20:21:39 07/14/07 PS, as an engineer, we use this one; - ni[X]it 18:56:46 07/14/07 Thanks :) (n/m) - turtleboy 20:24:17 07/14/07 thats badass, thanks (n/m) - dpjax 08:36:03 07/15/07 Sweet. (n/m) - Kenny 18:50:52 07/14/07 Neat - pacmanpth 19:08:45 07/14/07 Nice! - ZCulture 19:31:08 07/14/07 right click save as (n/m) - Tikigod (Denver) 19:56:08 07/14/07 obviously its a bit outside the scope of this chart... - AntiHero 21:31:00 07/14/07 Quite useful. Thanks! (n/m) - 91z tt 22:29:26 07/14/07 Thanks Nick. Maybe this will get moved to tech for VTF. (n/m) - Dave N 23:06:15 07/14/07
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