2005-2009 Mustang Information on The S197 {Gen1}

gas

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Old 6/17/04, 07:25 AM
  #21  
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Originally posted by ZERO@June 17, 2004, 5:52 AM

maybe that's true. i have a few friends who use normal gas in their car for every day driving, but when they go to the track to race they put in the high octane stuff out there. or at least that's what they tell me.
Using higher octane gas can give you more power at the track, (but only on engines modified to take advantage of the higher octane).

Higher octane has a higher resistance to detonation, which would allow you to run a higher than stock static compression ratio, increased boost pressure,and/or increased initial ignition timing which would give you MORE POWER.

But if you use high octane gas in car that is totally stock, you WILL actually lose power and reduce your gas mileage. That is due to the reduced B.T.U. output of higher octane gas.

There are people who have modified their engines to take advantage of high octane gas, and most of them reduce their intitial ignition timing and/or reduce their boost pressure so they can drive their car on the street while using pump gas
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Old 6/17/04, 08:09 AM
  #22  
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You can also get a flip chip burned so that if you want to take advantage of the higher octane gas...you can have one setting for 91, and one for 87 regular driving.
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Old 6/17/04, 08:30 AM
  #23  
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Originally posted by 2ndGenStangOwner+June 17, 2004, 7:28 AM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (2ndGenStangOwner @ June 17, 2004, 7:28 AM)</td></tr><tr><td id='QUOTE'>Higher octane has a higher resistance to detonation, which would allow you to run a higher than stock static compression ratio, increased boost pressure,and/or increased initial ignition timing which would give you MORE POWER.[/b]

well these guys cars deffinatly qualify. 1 of them runs a 90s something supra with a monster turbo and a ton of work in the car. i think they said last time he dyno'd the car, he made around 1100 hp. but he's put around $90,000 in the car, so i guess that can be expected.

the other drives a mustang, no turbo or anything, but it deffinatly is not stock.

<!--QuoteBegin-boomer

You can also get a flip chip burned so that if you want to take advantage of the higher octane gas...you can have one setting for 91, and one for 87 regular driving. [/quote]

just out of curiousity, how would a chip like that work? is it hooked to a dial or something where you can set which type of gas you are running? i wonder if the new programmers are able to set up something like that? ah well...prolly won't do that to the mustang anyhow...at least not for a long while.
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Old 6/17/04, 09:04 AM
  #24  
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Not sure exactly...but I thought there was a swtich on the chip for the 2 settings. One could be stock, the other your 'modded' settings.

Supra's with 1100hp
and they can STILL only run 12s
(ongoing joke...if you don't get it...fogetaboutit)
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Old 6/17/04, 09:40 AM
  #25  
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lol. I did see a 1000 + HP supra in popular mechanics a while ago.
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Old 6/17/04, 11:26 AM
  #26  
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Answer:

- use the octane specified in your owners manual....period.
- buy gas from a reputable gas station
- use fuel injector cleaner in your tank ever once in a while

This topic has been discussed several times. I'm closing it.

(Also adding this to the FAQ)

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