Acceptable idle rpm
Thread Starter
Drifting
Joined: Dec 2012
Posts: 1,504
Likes: 73
From: Georgetown TX
Acceptable idle rpm
1989 automatic
the FSM says 575 rpm in gear, but that seems a little low and not such a smooth idle on my car. There is possible information that the previous owner has installed a mild cam, but I am unsure. Anyone using 575? What’s a good number?
the FSM says 575 rpm in gear, but that seems a little low and not such a smooth idle on my car. There is possible information that the previous owner has installed a mild cam, but I am unsure. Anyone using 575? What’s a good number?
Melting Slicks
Joined: Aug 2003
Posts: 3,407
Likes: 400
From: Lakeville MI
;----------------------------------------------
; IAC TARGET SPEED vs COOLANT TEMP
;
; Dissassemby of ARAP, LINES = 17
;
; TBL = .08 * RPM
;----------------------------------------------
ORG $052E ; RPM Deg c COOL
;----------------------------------
LC52E FCB 84 ; 1050 -40
LC52F FCB 84 ; 1050 -28
LC530 FCB 84 ; 1050 -16
LC531 FCB 84 ; 1050 -4
LC532 FCB 84 ; 1050 8
LC533 FCB 76 ; 950 20
LC534 FCB 72 ; 900 32
LC535 FCB 60 ; 750 44
LC536 FCB 48 ; 600 56
LC537 FCB 48 ; 600 68
LC538 FCB 46 ; 575 80
LC539 FCB 46 ; 575 92
LC53A FCB 46 ; 575 104
LC53B FCB 46 ; 575 116
LC53C FCB 46 ; 575 128
LC53D FCB 46 ; 575 140
LC53E FCB 46 ; 575 152
;----------------------------------------------
; IAC TARGET SPEED vs COOLANT TEMP
;
; Dissassemby of ARAP, LINES = 17
;
; TBL = .08 * RPM
;----------------------------------------------
ORG $052E ; RPM Deg c COOL
;----------------------------------
LC52E FCB 84 ; 1050 -40
LC52F FCB 84 ; 1050 -28
LC530 FCB 84 ; 1050 -16
LC531 FCB 84 ; 1050 -4
LC532 FCB 84 ; 1050 8
LC533 FCB 76 ; 950 20
LC534 FCB 72 ; 900 32
LC535 FCB 60 ; 750 44
LC536 FCB 48 ; 600 56
LC537 FCB 48 ; 600 68
LC538 FCB 46 ; 575 80
LC539 FCB 46 ; 575 92
LC53A FCB 46 ; 575 104
LC53B FCB 46 ; 575 116
LC53C FCB 46 ; 575 128
LC53D FCB 46 ; 575 140
LC53E FCB 46 ; 575 152
;----------------------------------------------
