Cougar/XR7 V8-302 5.0L (1983)
Turbocharger: Technical Service Bulletins
Turbocharger - Boost Pressure Specifications
Article No. 86-6-16
TURBO BOOST PRESSURE SPECIFICATIONS
FORD 1983-86 THUNDERBIRD, MUSTANG, SVO MUSTANG
LINCOLN-MERCURY 1983-86 COUGAR, CAPRI
MERKUR 1985-86 XR4Ti
Turbochargers are being replaced unnecessarily because of a lack of information about correct boost pressures. Listed below is a specification chart by
application to aid in the diagnosis of "loss of power" conditions.
Boost Pressure Table
Model
Nominal Maximum
Overboost Warning
Year
Model
Boost +/- .5 PSI
+/- .5 PSI
83
Thunderbird
M/T 10 PSI
* 12.5 PSI
Cougar
M/T 10 PSI
* 12.5 PSI
84
Thunderbird
M/T-A/T 10 PSI
** 12.5 PSI
Cougar
M/T-A/T 10 PSI
** 12.5 PSI
Mustang
M/T 10 PSI
** 12.5 PSI
Capri
M/T 10 PSI
** 12.5 PSI
84-86
SVO
Regular 10 PSI
17.5
Premium 14 PSI
17.5 PSI
85-86 Thunderbird
M/T 12 PSI
17.5 PSI
Cougar
M/T 12 PSI
17.5 PSI
Thunderbird
A/T 10 PSI
17.5 PSI
Cougar
A/T 10 PSI
17.5 PSI
Merkur
M/T 15 PSI
17.5 PSI
Merkur
A/T 10 PSI
17.5 PSI
*
Overboost pressure warning prior to 4/4/83 was 11.5 PSI.
** Overboost pressure warning after 2/2/84 was 13.5 PSI.
OTHER APPLICABLE ARTICLES:
None
WARRANTY STATUS:
"INFORMATION ONLY"