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04-16-2007, 06:33 PM

86_GT_Mustang

5th Gear Member

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Join Date: May 2006

Location: Livonia MI

Posts: 2,632

Gas

Is it safe to run 87 regulear in an 86 GT with this done to it. E-cam, ported E7s, Explorer gt40 Intake and 65mm throttle body. Mass air conversion w/ a9p computer??

04-16-2007, 06:54 PM

94IVGT

2nd Gear Member

Join Date: Mar 2007

Location:

Posts: 152

RE: Gas

yes

04-16-2007, 07:17 PM

93 LX FiveO

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Join Date: Aug 2006

Location: Haverhill, MA

Posts: 3,664

RE: Gas

i only run 87.. anything else is a waste of money

04-16-2007, 07:24 PM

frdmstng1986GT

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Join Date: Jul 2006

Location: Alton, New Hampshire

Posts: 2,518

RE: Gas

depends on how much timming the car is running and the compression ratio. get a timming light and check it when you get the car home. 13-14* and below then 87 should be ok.. above 14* i would run mid grade at least.

04-16-2007, 07:32 PM

89 fox

4th Gear Member

Join Date: Jun 2006

Location: BATON ROUGE

Posts: 1,262

RE: Gas

Quote:

ORIGINAL: frdmstng1986GT

depends on how much timming the car is running and the compression ratio. get a timming light and check it when you get the car home. 13-14* and below then 87 should be ok.. above 14* i would run mid grade at least.

+1...also...if you decked the heads a lot to bump the compression....i'd run 89 or 93...