could 87 octane make it knock?

90dpscoupe · 10-10-2001, 04:10 AM

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
MustangNet

My site: JimPorterRacing

RACECAR spelled backwards is RACECAR

HEY !!! Are you ASE Certified ??? If you are, ask me about iATN. The best tool you'll ever have, and it's free !!!

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

thnx

10-10-2001, 04:10 AM	#1
90dpscoupe Registered Member Join Date: Jun 2000 Location: sanantonio, Tx, usa Posts: 1,407	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. ------------------ 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.

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10-10-2001, 04:12 AM	#2
90dpscoupe Registered Member Join Date: Jun 2000 Location: sanantonio, Tx, usa Posts: 1,407	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.

10-10-2001, 12:05 PM	#3
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	If you advance ignition you have to move to a higher octane fuel. ------------------ 351W 89 Mustang GT Convertible

10-13-2001, 02:07 AM	#4
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Most chips require 93 octane. -C ------------------ Retired Moderator MustangNet My site: JimPorterRacing RACECAR spelled backwards is RACECAR HEY !!! Are you ASE Certified ??? If you are, ask me about iATN. The best tool you'll ever have, and it's free !!!

10-14-2001, 02:08 AM	#5
mustangbob19 Registered Member Join Date: Sep 2000 Location: Minnesota Posts: 125	why run 87 octane??? ------------------ 1990 Mustang GT 5.0 1966 Mustang 200 six 2001 Ford F-150 5.4

10-14-2001, 02:44 PM	#6
90dpscoupe Registered Member Join Date: Jun 2000 Location: sanantonio, Tx, usa Posts: 1,407	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 thnx