Subject	NO, it hurts emissions >>>
Posted by	Funky (NWZ) on May 16, 2003 at 8:12 PM
	This message has been viewed 45 times.
In Reply To	Does running race gas improve emmissions? posted by ni[X]it on May 16, 2003 at 03:07 PM
Message	Race fuel contains much higher concentrations of aromatic hydrocarbons than regular pump gas. Federal law limits aromatic hydrocarbon content to 40% to try to control hydrocarbon emissions. Most 100unleaded race fuel is about at the 40% limit, and is street legal. The 104 stuff (at least Sunoco 104 unleaded) has more than 40% aromatic hydrocarbons and is NOT street legal. 92 octane pump gas is around ~30%, give or take depending on the brand/mixture/season/etc. California gas is limited to 30%. (= 91 octane after they started removing MTBE) It WILL affect the hydrocarbon emissions from your vehicle, and in a BAD way. The guy at the Buick GNX forums was probably running leaded fuel, which does not depend on ultra-high levels of hydrocarbons to increase the octane rating, so it probably wouldn't dork the HC emissions too badly.
Follow Ups	Does running race gas improve emmissions? - ni[X]it 15:07:16 05/16/03 Not really... - Snoguitar 15:10:43 05/16/03 Actually thats completely wrong, the octane level is - DAYTONAZ 15:29:22 05/16/03 More on nixits problem, I just had to post all ^^ that - DAYTONAZ 15:41:29 05/16/03 main cats are back on and 'burned in'. - ni[X]it 17:20:40 05/16/03 No man, it's the other way around. (n/m) - Snoguitar 15:58:41 05/16/03 No, thats wrong too - PEwithaZ 16:45:00 05/16/03 Really? what generates the knock? (n/m) - DAYTONAZ 17:13:40 05/16/03 Links inside >>> - Funky (NWZ) 20:33:51 05/16/03 No Bro, looks like you're going to have to BUY your sticker! (n/m) - LRD VDR 15:11:04 05/16/03 ya, the dude offered to sell me one. - ni[X]it 15:13:22 05/16/03 Man, its just faster sometimes to cheat a stupid system. (n/m) - LRD VDR 15:16:24 05/16/03 There was a guy on the Buick GNX forums who had - KILLR300ZX 15:18:36 05/16/03 see, I heard from someone one of SER fame that - ni[X]it 15:22:48 05/16/03 Your comparing apples and oranges, both fruits but different - DAYTONAZ 15:43:05 05/16/03 Both cars have V6 forced induction engines running - KILLR300ZX 15:53:10 05/16/03 I know what your saying but the differences are more - DAYTONAZ 17:08:02 05/16/03 good tuning - Marshall 17:04:30 05/16/03 by the way - Marshall 17:07:42 05/16/03 see, thats the thing... - ni[X]it 17:17:34 05/16/03 Burning rich would give you high HC. Lean, high NO. - fourZero 17:50:48 05/16/03 wouldn't being too lean give you high Nox? - Marshall 19:06:42 05/16/03 I have no precats OR cats, and passed CA emissions with 91 - Scotts94z32 21:20:16 05/16/03 Re: Does running race gas improve emmissions? - turbo1 16:14:54 05/16/03 NO, it hurts emissions >>> - Funky (NWZ) 20:12:55 05/16/03 Switch to Lpg - NATAZ 13:48:51 05/17/03
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