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January 30th, 2008, 12:07 AM
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#1 |
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Newbie
Join Date: Jan 2008
Posts: 7
 iTrader: 0 reviews
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Car keeps running lean
I have a 95gt with Victor heads, Typhoon intake, 8.1 compression ratio, not sure what cam shaft, S trim supercharger running 11 lb boost, and 42 lb injectors. My car is running lean under boost any help please?
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January 30th, 2008, 12:18 AM
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#3 |
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MM Fanatic
Join Date: May 2007
Location: Bloomington, IL
Posts: 4,627
iTrader: 0 reviews
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you have a wide band A/F meter?
__________________
88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it 
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January 30th, 2008, 12:19 AM
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#4 |
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Newbie
Join Date: Jan 2008
Posts: 7
iTrader: 0 reviews
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Yes I have a T rex pump and a fmu and also have an adjustible regulator on my fuel rail set at 40 lbs.
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January 30th, 2008, 12:20 AM
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#5 |
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Newbie
Join Date: Jan 2008
Posts: 7
iTrader: 0 reviews
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whats a wide band fuel meter
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January 30th, 2008, 12:21 AM
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#6 |
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MM Fanatic
Join Date: May 2007
Location: Bloomington, IL
Posts: 4,627
iTrader: 0 reviews
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OK, lets back up for a minute. How do you know it is running lean?
__________________
88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it
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January 30th, 2008, 12:34 AM
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#7 |
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Newbie
Join Date: Jan 2008
Posts: 7
iTrader: 0 reviews
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I have an air/fuel ratio guage on it and I've also pulled the plugs and they have no color build up on them accept for a little bit of white
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January 30th, 2008, 12:41 AM
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#8 | |
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I Post Entirely Way Too Much
1988 Mustang LX Turbo
Join Date: Oct 2006
Location: NY
Posts: 8,792
Blog Entries: 1
iTrader: 0 reviews
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__________________
1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16. |
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January 30th, 2008, 12:50 AM
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#9 | |
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MM Fanatic
Join Date: May 2007
Location: Bloomington, IL
Posts: 4,627
iTrader: 0 reviews
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white plugs are fine for an EFI car, it might be running 15:1-16:1 at idle, that is normal for an EFI car. The autometer guages don't really help much unless it is running off a quality wide band O2 sensor. When in doubt, take it to a dyno facility and have them check the A/F ratio.
__________________
88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it
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