5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Race Gas and Stock motor?

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Old 11-06-2006, 11:40 AM
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ModularFox
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Default Race Gas and Stock motor?

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Old 11-06-2006, 11:41 AM
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88BlueGT
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Default RE: Race Gas and Stock motor?

Its pointless...
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Old 11-06-2006, 11:50 AM
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Default RE: Race Gas and Stock motor?

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Old 11-06-2006, 01:05 PM
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AdderMk2
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Default RE: Race Gas and Stock motor?

hes trying to tell you that you will infact still be wasting the fuel, your car will run like *** when you put that 110 in there.... i know mine sure did... unless i was spraying
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Old 11-06-2006, 02:02 PM
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turbostang21
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Default RE: Race Gas and Stock motor?

run a lot of timing when you use it...otherwise there's no point. you might destroy the o2 sensors but otherwise it'll be fine. you might want to go to the track and see if anyone wants to buy if for a bit of a discount
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Old 11-06-2006, 02:40 PM
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ModularFox
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Default RE: Race Gas and Stock motor?

yeah i was thinking about just running more timing with it and seeing how it runs. but chances are ill just try to sell it and get something out of it. i dont need to ***** up my 02 sensors for no reason.
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Old 11-06-2006, 10:44 PM
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JD1969
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Default RE: Race Gas and Stock motor?

It will hurt the O2's and maybe the cats, due to the lead. Your better off selling it.
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Old 11-06-2006, 11:28 PM
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PRO50SC
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Default RE: Race Gas and Stock motor?

ORIGINAL: ModularFox

Well guys I was wondering is it safe to run 110 octane race gas in a stock 1989 GT? Long story short i have a 55 gallon drum of race gas left in the garage because i hurt the motor in my race car, and it is down for the year. I hate to waste all the gas, so i was wondering if i could just put it in the 5.0 and put it to good use?
Is this the car w/ the 315's on an 8" rim that runs 10's??

ORIGINAL: ModularFox



i have 315s on a 8 inch rim, they handle 10 second passes with no problems.
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Old 11-06-2006, 11:32 PM
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grabbem88
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Default RE: Race Gas and Stock motor?

lol! man i had a hell of a time putting 275's on a 8inch rim
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Old 11-06-2006, 11:33 PM
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r.barn
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Default RE: Race Gas and Stock motor?

Shyt yeah you can use it ......... its still unleaded right?

run your 110 octane and bump the base timing WAY up. you pick up 3-4 hp per degree of timing.

bet you can pick up an extra 20+ hp,

JUST REMEMBER TO TURN TIMING BACK DOWN IF YOU PUT PUMP GAS IN!!!!!!!

ORIGINAL: ModularFox

Well guys I was wondering is it safe to run 110 octane race gas in a stock 1989 GT? Long story short i have a 55 gallon drum of race gas left in the garage because i hurt the motor in my race car, and it is down for the year. I hate to waste all the gas, so i was wondering if i could just put it in the 5.0 and put it to good use?
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