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Car Forum / Pontiac / Pontiac Cars / January 2009top speed 07 gxp gp
recently got an 2007 grand prix gxp . according to pontiac its top speed is 155 mph . but the guys at my job said all american cars are regulated to 115 mph . maybe not corvettes and such but most . anyone know how fast this car can actually go ? > recently got an 2007 grand prix gxp . according to pontiac its top speed > is 155 mph . but the guys at my job said all american cars are regulated > to 115 mph . maybe not corvettes and such but most . anyone know how > fast this car can actually go ? > > All Grand Prixs are equipped with a speed limiter that will retard the fuel delivery to your engine at a pre-set speed (108 for normally aspirated 3800's and 126 for supercharged 3800's). This will prevent the car from exceeding the speed limitation of the factory tires' speed rating. This operation was designed by GM to prevent lawsuits and dangerously high speeds, and will not harm your Grand Prix. >> recently got an 2007 grand prix gxp . according to pontiac its top speed >> is 155 mph . but the guys at my job said all american cars are regulated [quoted text clipped - 7 lines] >> rating. This operation was designed by GM to prevent lawsuits and >> dangerously high speeds, and will not harm your Grand Prix. I know that the CompG's shut down att 142..... (Unless you reprogram the PCM) GXP.....Top speed (governor limited): 143 mph, that could be changed too..... www.gpona.com >>> recently got an 2007 grand prix gxp . according to pontiac its top speed >>> is 155 mph . but the guys at my job said all american cars are regulated [quoted text clipped - 15 lines] > >www.gpona.com The last gen of Firebirds were unlimited if they came from the factory with the speed rated tires ( fbody.org ). I have a 2005 GTO now, the spedo goes to 200, but I haven't tried it that fast yet to see if it is restricted at less than that. Tom S. >>>> recently got an 2007 grand prix gxp . according to pontiac its top >>>> speed [quoted text clipped - 25 lines] > > Tom S. I recently replaced my Speedometer dial with one that says 240mph. Havn't had a chance to try it yet but expect the change to allow my Grand Am to hit at least 220. |
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