Specifications - Mazda RX-7 1989 Service Highlights

SPECIFICATIONS
Item
Model
Turbo Non-Turbo
Eng1ne type Rotary eng1ne
~~
Displacement cc (cu 1n)
6S4
X
2 (40.0
X
2)
Number of cyl1nders and arrangement 2 rotors. longitudinal
Combustion chamber type Bathtub
Compression rat10 9.0 1 9.7 1
A1r Induction 4 port 1nduct1on
6
port 1nduct1on
Pnmary 4S 0 ATOC
32°
ATOC
Open Secondary 32° ATOC
Auxiliary
4S 0
ATOC
Intake
Pnmary S0°
ABOC
40° ABOC
Port t1m1ng
Close Secondary
soo
ABOC 30° ABOC
Auxil1ary
80"
ABOC
\
Open
7S 0
BBDC
Exhaust
Close
48°
ATOC
Fuel supply system EGI
lgn1t1on t1ming (w1th test connector
Tra1l1ng
(Green 1-p1n) grounded)
Lead1ng
20°
±
2 ' ATOC (REO)
l,~
so
± 1
o
ATOC (YELLOW)
Idle speed (w1th test connector (Green 1-pln)
grounded) rpm
750
±
25
97UOCX 504
C-4