 93 octane in Denver? |
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 Dec 13 2005, 04:07 AM
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Chapter 11 Racing  Group: Advanced Members Posts: 1,166 Joined: 15-February 04 From: Houston, Republic of Texas Member No.: 207  |
seems like stupid question, but Topeka sure as heck didn't have any 93.
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Dec 14 2005, 04:26 PM
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Experienced Member Group: Advanced Members Posts: 1,197 Joined: 13-February 04 From: Hudson, Colorado Member No.: 197 |
I've never gone through all the thermochemistry, but generally our premium is 91 octane. There are a few places around town where you can get 93 and 100 octane unleaded. I've tried them in my car, but I saw no difference. My engine is pretty much stock. If you have a higher compression ratio you may be able to make use of the higher octane fuel even up here. Some people with 11:1 or higher say they do get some benefit from it. The biggest problem is the cost. 100 octane is between $4-5/gal.
Maybe you guys can help me out with something. It seems to me that if you use too much octane, you can actually reduce your power output. Octane makes the fuel burn slower, so if you don't have the compression or the timing to take advantage of it, it can hurt power right? BTW, absolut atmosheric pressure in Denver is 12.6 to 12.8 psi depending on the weather. This post has been edited by 00 SS: Dec 14 2005, 04:29 PM |
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Posts in this topic
35th_Anniversary_AS_Camaro_SS 93 octane in Denver? Dec 13 2005, 04:07 AM
Rob Hood I didn't think they had that high of octane at... Dec 13 2005, 06:00 AM Sam Strano Lat time I was there 91 was it because of the alti... Dec 13 2005, 06:02 PM trackbird Thinner air reduces the filling of the cylinders, ... Dec 13 2005, 06:16 PM 35th_Anniversary_AS_Camaro_SS Yeah, but with a "mass" airflow sensor d... Dec 13 2005, 10:59 PM trackbird QUOTE (35th_Anniversary_AS_Camaro_SS @ Dec 13... Dec 13 2005, 11:22 PM 35th_Anniversary_AS_Camaro_SS the lower compression ratio is really a misnomer. ... Dec 14 2005, 01:42 AM trackbird Right. We are actually discussing dynamic compress... Dec 14 2005, 03:22 AM trackbird QUOTE (00 SS @ Dec 14 2005, 11:26)Maybe you g... Dec 14 2005, 05:41 PM 00 SS Interesting. I thought the vapor pressure determi... Dec 14 2005, 06:11 PM trackbird QUOTE (00 SS @ Dec 14 2005, 13:11)Interesting... Dec 14 2005, 06:54 PM 00 SS QUOTE (Rob Hood @ Dec 13 2005, 00:00)I didn... Dec 14 2005, 08:29 PM trackbird QUOTE (00 SS @ Dec 14 2005, 15:29)The bottom ... Dec 14 2005, 08:59 PM 35th_Anniversary_AS_Camaro_SS I'll run whatever Danny Popp says is okay.... ... Dec 14 2005, 10:31 PM 00 SS QUOTE (35th_Anniversary_AS_Camaro_SS @ Dec 14... Dec 14 2005, 10:39 PM Spectator I thought higher octane fuel actually had slightly... Dec 14 2005, 11:09 PM pknowles QUOTE How often you you ever get knocking in moder... Dec 14 2005, 11:13 PM pknowles QUOTE I thought higher octane fuel actually had sl... Dec 14 2005, 11:17 PM Spectator I understand that. I'm talking about the actua... Dec 14 2005, 11:23 PM 35th_Anniversary_AS_Camaro_SS QUOTE (00 SS @ Dec 14 2005, 16:39)Correct, bu... Dec 14 2005, 11:39 PM CMC#5 hehe so then why is the max octane in Ca 91 not 93... Dec 16 2005, 04:57 AM trackbird QUOTE (CMC#5 @ Dec 15 2005, 23:57)hehe so the... Dec 16 2005, 05:31 AM 35th_Anniversary_AS_Camaro_SS I was thinking it could be something about emissio... Dec 16 2005, 06:09 AM trackbird QUOTE (35th_Anniversary_AS_Camaro_SS @ Dec 16... Dec 16 2005, 01:21 PM CMC#5 So you think the CARB (Cal Air Resource Board) is ... Dec 16 2005, 10:10 PM
trackbird QUOTE (CMC#5 @ Dec 16 2005, 17:10)So you thin... Dec 16 2005, 11:12 PM |
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