Speed limiter
#1
Speed limiter
Hey guys i have a 98 trans am that according to the door code it came with z rated tires but it wont go faster than 120 mph !
Ls1 no mods 6 speed 3.73 gears ! Whats the deal my wifes 98 t/a automatic climbs well above 120
Ls1 no mods 6 speed 3.73 gears ! Whats the deal my wifes 98 t/a automatic climbs well above 120
#2
TECH Resident
If it came with Z-rated tires then the stock speed limiter should be 162mph.... If no Z-rated tires then it will be 118mph.... You may not have the stock ECM in the car and was swapped with a car without Z-rated tires.
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#12
I was on an old air strip never said i was on a public road. And if the car didnt come with z rated tires it was computer limited to 118 mph if equiped with z from factory 162 mph limit
#14
That's MISTER MODERATOR
iTrader: (9)
Kuhny, if your speedometer is indicating the correct speed (EG: It reads 50 when you're traveling at 50) the PCM's ratio is correct but it's from another vehicle with the lower max speed set.