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-   -   could 87 octane make it knock? (http://forums.mustangworks.com/showthread.php?t=6358)

90dpscoupe 10-10-2001 04:10 AM
could 87 octane make it knock?
 
I have advanced ingnition, plus ads chip, not sure if its my powersteering or what, oil looks good, im running 87 right now could it be the fuel? im not hearing detonation unless i step into it aggressively.

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90 lx coupe: 5spd, energy susp trans mounts, fms hd clutch, Mac coldair fenderwell, Mac h-pipe, supercoil, ADS chip, 160 stat, aluminum D/S, Black magic fan, 3.27grs.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 98.17
Best 60': 1.9607

someday mods:4.10's, slicks.

90dpscoupe 10-10-2001 04:12 AM
More details: i hear it knocking at idle, not bad as if somethings broke, but you know.....thnx for any help, im gonna put some 93 in tomorrow.

jimberg 10-10-2001 12:05 PM
If you advance ignition you have to move to a higher octane fuel.

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351W 89 Mustang GT Convertible

PKRWUD 10-13-2001 02:07 AM
Most chips require 93 octane.

-C

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Retired Moderator
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mustangbob19 10-14-2001 02:08 AM
why run 87 octane???

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1990 Mustang GT 5.0
1966 Mustang 200 six
2001 Ford F-150 5.4

90dpscoupe 10-14-2001 02:44 PM
I only did it for about a week of easy driving, besides the knocking came from my balancer, which is now fixed, so let this topic die off http://www.mustangworks.com/msgboard/smile.gif thnx


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