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****************************1979**************************** Cyl disp carb HP FT-LB Code 4 140 2V 88 N/A Y 4 140 2V 132 (Turbo) N/A W 6 170 2V 109 N/A Z 6 200 1V 85 N/A T 8 302 2V 140@3600 250@1800 F ****************************1980**************************** Cyl disp carb HP FT-LB Code 4 140 2V 88(MT)/90(AT) N/A A 4 140 2V N/A(Turbo) N/A W 6 200 1V 91(MT)/94(AT) N/A B 8 255 2V 118@3200 193@2200 D ****************************1981**************************** Cyl disp carb HP FT-LB Code 4 140 2V 88 N/A A 6 200 1V 94 N/A B 8 255 2V 115@3400 195@2200 D 8 255 2V 120@3400 205@2200 D ****************************1982**************************** Cyl disp carb HP FT-LB Code 4 140 2V 88 N/A A 6 200 1V 94 N/A B 8 255 2V 111@3400 194@1600 D 8 302 2V 157@4200 240@2400 F ****************************1983**************************** Cyl disp carb HP FT-LB Code 4 2.3L 1V 88 N/A A 4 2.3L turbo 145@4600 180@3600 T 6 3.8L 2V 112 N/A 3 8 302 4V 175@4200 245@2400 M ****************************1984**************************** Cyl disp carb HP FT-LB Code 4 2.3L 1V 88 N/A A 4 2.3L turbo 145@4600 180@3600 T(GT) 4 2.3L turbo 175@5000 210@3000 W(SVO) 6 3.8L EFI 120 N/A 3 8 302 CFI 165@3800 245@2000 F 8 302 4V 175@4200 245@2400 M ****************************1985**************************** Cyl disp carb HP FT-LB Code 4 2.3L 1V 88 N/A A 4 2.3L turbo 175@5000 210@3000 W(SVO) 6 3.8L EFI 120 N/A 3 8 302 CFI 180@4200 260@2600 M(AT) 8 302 4V 210@4400 270@3200 M(MT) ****************************1985½*************************** Cyl disp carb HP FT-LB Code 4 2.3L turbo 205@5000 248@3000 W(SVO) ****************************1986**************************** Cyl disp carb HP FT-LB Code 4 2.3L 1V 88 N/A S 4 2.3L turbo 200@5000 240@3000 W(SVO) 6 3.8L EFI 120 N/A 3 8 302 EFI 200@4000 285@3000 M ****************************1987**************************** Cyl disp carb HP FT-LB Code 4 2.3L 1V 88 N/A S 8 302 EFI 225@4200 300@3200 M ****************************1988**************************** Cyl disp carb HP FT-LB Code 4 2.3L 1V 88 N/A S 8 302 EFI 225@4200 300@3200 N/A ****************************1989**************************** Cyl disp carb HP FT-LB Code 4 2.3L 1V 88 N/A S 8 302 EFI 225@4200 300@3200 N/A ****************************1990**************************** Cyl disp carb HP FT-LB Code 4 2.3L 1V 88 N/A S 8 302 EFI 225@4200 300@3200 N/A ****************************1991**************************** Cyl disp carb HP FT-LB Code 8 302 EFI 225@4200 300@3200 N/A ****************************1992**************************** Cyl disp carb HP FT-LB Code 8 302 EFI 225@4200 300@3200 N/A ****************************1993**************************** Cyl disp carb HP FT-LB Code 8 302 EFI 205@4200 275@3200 N/A 8 302 EFI 235@4600 280@4000 N/A
*****************1979****************** Notchback 143,382 Hatchback 108,758 Ghia Notchback 48,788 Ghia Hatchback 31,097 Mustang Pace Car Replica 11,000 All 5.0L 47,568 TOTAL: 369,936 *****************1980****************** Notchback 117,015 Hatchback 86,569 Ghia Notchback 20,288 Ghia Hatchback 17,192 TOTAL: 241,064/271,322 Conflicting data from 2 sources *****************1981****************** Notchback 69,994 Hatchback 68,111 Ghia Notchback 11,991 Ghia Hatchback 12,497 TOTAL: 162,059/182,552 Conflicting data from 2 sources *****************1982****************** Notchback N/A Hatchback N/A L/LG Notchback 45,316 GLX Notchback 5,828 GL Hatchback 45,901 GLX Hatchback 9,926 GT Hatchback 23,447 non GT 5.0L 4,656 GT 24,799 TOTAL: 130,418 *****************1983****************** Notchback 33,201 Hatchback N/A L/LG Notchback N/A GLX Notchback N/A GL Hatchback N/A GLX Hatchback N/A GT Hatchback 26,656 non GT 5.0L 7,891 GT (turbo 4) 604 GT convertible 1001 Convertible (all) 23,438 All 5.0L 35,540 TOTAL: 120,873 *****************1984****************** Notchback 37,680 Hatchback 86,200 L/GL Notchback N/A GT Hatchback 26,658 non GT 5.0L 5,280 GT (turbo 4) 3,798 GT convertible 6,256 Convertible (all) 17,600 All 5.0L 38,194 SVO (US) 4258 SVO (Canadian) 250 TOTAL: 141,480 *****************1985****************** Notchback 56,781 Hatchback 84,623 GT hatchback 36,879 non GT 5.0L 6,326 GT 42,428 GT convertible 5,549 Convertible (all) 15,110 All 5.0L 48,754 SVO (US) 1496 SVO (Canadian) 19 TOTAL: 156,514 *****************1985½***************** SVO (US) 428 SVO (Canadian) 11 *****************1986****************** Notchback (all) 106,720 Hatchback (all) 117,690 Convertible (all) 22,946 LX 5.0L 6,674 GT hatch 40,578 GT convertible 9,887 All 5.0L 57,139 SVO (US) 2906 SVO (Canadian) 476 TOTAL: 224,410 *****************1987****************** Notchback (all) 64,704 Hatchback (all) 94,441 Convertible (all) 21,447 LX 5.0L 16,609 GT hatch 47,539 GT convertible 10,451 All 5.0L 64,148 TOTAL: 159,145 *****************1988****************** Notchback (all) N/A Hatchback (all) N/A Convertible (all) N/A LX 5.0L 30,877 GT hatch 50,294 GT convertible 18,174 All 5.0L 99,345 TOTAL: 211,225 *****************1989****************** Notchback (all) N/A Hatchback (all) N/A Convertible (all) 42,244 LX 5.0L 45,876 GT 59,701 All 5.0L 105,577 TOTAL: 209,769 *****************1990****************** Notchback (all) N/A Hatchback (all) N/A Convertible (all) 26,958 LX 5.0L 44,851 GT 34,435 All 5.0L 79,286 TOTAL: 128,189 *****************1991****************** Notchback (all) N/A Hatchback (all) N/A Convertible (all) 21,513 LX 5.0L 27,880 GT 24,428 All 5.0L 52,308 TOTAL: 98,737 *****************1992****************** Notchback (all) N/A Hatchback (all) N/A Convertible (all) 23,470 LX 5.0L 19,131 GT 20,445 All 5.0L 39,576 TOTAL: 79,280 *****************1993****************** Notchback (all) N/A Hatchback (all) N/A Convertible (all) 26,300 LX 5.0L 22,902 GT 26,101 Cobra 4,993 All 5.0L 54,103 Cobra R 107 TOTAL: 114,228
The side that claims off-road H-pipes cost low end torque base reason that they do not provide enough back-pressure to effeciently scavenge, and thus a portion of the intake charge goes right out the exhaust port during overlap. Some also relate their "seat of the pants" experiences to back up their claims.
The side that claims off-road H-pipes increase (or at least don't cost any) low end torque reasons that the stock H-pipe (or even an aftermarket H-pipe with high-flow cats) is way too restrictive, and that headers have more of an effect on scavenging and tuning than any other exhaust component. They also relate personal experiences claiming their cars felt stronger at low RPM than before the off-road H-pipe.
Also, in a recent test by "Super Ford" magazine, the two off road H-pipes they tested outperformed the two high-flow cat H-pipes everywhere in the RPM band.
Also, off-road H-pipes are against federal regulations (as if that isn't a violation of the 10th Amendment) and may be prohibited in your state as well. So the legal risks of intalling them on a street driven car must be assesed along with the benefits of any kind of performance increase.
Bascially, computer chips change certain calculations and look-up tables the EEC uses to set fuel delivery, spark advance, etc.
Buying a chip for a stock car for the sole purpose of increasing performance is a relatively expensive option. However, a custom chip burned for your particular setup can prove to be a worthwile investment. When you start tinkering with fuel delivery and recalibrating some sensors, then you might want to consider a chip, especially if you don't feel your car is running correctly.
The TPS is located directly on top of the throttle body and is adjusted by loosening the two phillips mounting screws and swiveling the sensor until the highest reading is found. It may be necessary to elongate the holes with a small file to achieve the desired reading.
The spec range for Key On is from .88 to 1.0 volt; shoot for the .97 to .99 volt. With the engine running, the voltage should be no higher than 1.05 volts.
Incorrect Throttle Position Sensor (TPS) voltage will result in reduced performance. The best way to take a TPS voltage reading is by using two safety pins through the wires coming from the sensor. The positive lead is attached to the green wire, while the negative goes to the black wire. Always ground the meter through the sensor's black wire. This gives a direct, and more accurate ground into the computer.
This first recipe assumes a bone-stock Mustang. It does not call for the purchase of any aftermarket engine bolt-ons.
This should get your '87-'93 302 running 97-99mph in the 1/4-mile while retaining stock drivability and appearance. Throttle response should be noticably improved. ET depends on your launch, shift points, and traction.
These mods should get your 5-speed Mustang running 99-102 in the 1/4-mile.
Mustang 5.0 LX Registry
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The OFFICIAL 20th Anniversary Mustang Website and Registry
The Corral
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5.0 Mailing List InfoPage
Mustang Works Online Magazine
Gateway 5.0 Mustang Club
TurboFord.Org
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