I Run 93 Octane Is It Just As Good To Use 87?

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09-13-2004, 10:42 AM

LOVEMY88GT

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I Run 93 Octane Is It Just As Good To Use 87?

Well i have an 88 Gt with the mods below. I pay 1.99 a gallon for gas now can i get the chaper 87 and still be good?

09-13-2004, 05:54 PM

luckythirteen13

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RE: I Run 93 Octane Is It Just As Good To Use 87?

you can use 87 as long as you dont have a higher compression ratio. you also have to set the timin to about 12* max

09-13-2004, 08:15 PM

vfast

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RE: I Run 93 Octane Is It Just As Good To Use 87?

I don't see any real mods so 87 or 89 with 14 degree timing should be good to go

09-13-2004, 11:11 PM

LOVEMY88GT

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RE: I Run 93 Octane Is It Just As Good To Use 87?

So i can run 87 and still be good right? or will i start to hear pinging?

09-14-2004, 01:50 AM

roundman

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RE: I Run 93 Octane Is It Just As Good To Use 87?

if it pings, just drop the timing back a degree or two until it don't ping anymore.

09-14-2004, 11:03 AM

LOVEMY88GT

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RE: I Run 93 Octane Is It Just As Good To Use 87?

hmm alright well looks like back to the days of cheaper gas for me YAY!!!!
Thanks!!

~Nick

09-14-2004, 01:26 PM

roundman

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RE: I Run 93 Octane Is It Just As Good To Use 87?

just don't be surprised if the power drops off a bit and the timing lands up below the stock 10 degrees BTDC since the '88 5.0 spec was to run 93 octane at 10 degrees timing.

09-14-2004, 05:34 PM

LOVEMY88GT

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RE: I Run 93 Octane Is It Just As Good To Use 87?

hmmm well i prob still will put in 93 anyways whats a few cents a gallon more.

Well off to bigger and better things.

09-14-2004, 05:42 PM

jishead

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RE: I Run 93 Octane Is It Just As Good To Use 87?

Quote:

ORIGINAL: roundman

just don't be surprised if the power drops off a bit and the timing lands up below the stock 10 degrees BTDC since the '88 5.0 spec was to run 93 octane at 10 degrees timing.

Is the '88 5.0 a high compression engine or something?