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Apr 16, 2007 | 06:33 PM

86_GT_Mustang

Thread Starter

5th Gear Member

Joined: May 2006

Posts: 2,632

From: Livonia MI

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??

Apr 16, 2007 | 06:54 PM

94IVGT

2nd Gear Member

Joined: Mar 2007

Posts: 152

From:

RE: Gas

yes

Apr 16, 2007 | 07:17 PM

93 LX FiveO

5th Gear Member

Joined: Aug 2006

Posts: 3,664

From: Haverhill, MA

RE: Gas

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

Apr 16, 2007 | 07:24 PM

frdmstng1986GT

5th Gear Member

Joined: Jul 2006

Posts: 2,518

From: Alton, New Hampshire

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.

Apr 16, 2007 | 07:32 PM

89 fox

4th Gear Member

Joined: Jun 2006

Posts: 1,262

From: BATON ROUGE

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...