GX - 1st Gen (2004-2009) Discussion topics related to the 2003 -2009 GX470 models

How to delete the top speed limiter?

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Old 07-24-07, 09:25 AM
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TRD-SUPRA
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Default How to delete the top speed limiter?

Morning...

I got a 2005 GX with sport package yesterday.
I want to know who or how can I delete the top speed limiter in that car.

The computer cut at 115mph I think and I think the car can reach 140mph at least.

Thanks for any info or help!!
Old 07-24-07, 10:06 AM
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super_cjc
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I also would like to know how to disable the speed limit.
However, I don't think I would drive GX over 115 mph.
Old 07-24-07, 10:14 AM
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FLIPPU
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i think it will need an ECU Reflash with a different software....you'll need to go to a performance shop or tuner shop to get this done properly.

Mike
Old 07-24-07, 10:40 AM
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GatorGreg
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For your own safety I highly recommend that you consider trading in your GX for a Cayenne if you anticipate the need to drive an SUV over 115mph. That said I'd be interested to know what the ungoverned top speed is - I'm guessing about 125.
Old 07-24-07, 12:10 PM
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purplehazek4
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I'm gonna agree with Gatorgreg, as the GX isn't that kind of SUV, but if you're set on it...

Try Supra tuners, i'm sure they'll be able to point you in the right direction.

Don't forget about proper speed rating on the tires for that kind of speed!

Dan
Old 07-25-07, 10:08 PM
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LexGX
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I know this is kinda crazy going at that kind of speed but i have before. I have an 04 and i was doing 120 and i don't think it stopped at 115. AFter i hit 120 i let off but it felt like it wanted to do more and no indication of it shutting off.
Old 07-26-07, 06:29 AM
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two words: slow cruising
Old 07-26-07, 06:42 AM
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JessePS
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Originally Posted by kphu
two words: slow cruising
hahahahaa

Honest, I don't see the use for going over 80-100 mph.

Plus the GX, eats a lot of gas also.
Old 07-26-07, 09:00 AM
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super_cjc
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Originally Posted by kphu
two words: slow cruising
I usually just follow the flow.
If most of the vehicles are doing 75mph, I won't do 65mph and stay in inner lanes.
Old 07-26-07, 10:35 AM
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three words: pimp it slowly
Old 07-26-07, 10:42 AM
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Five Foghat words: Slow ride, take it easy
Old 07-26-07, 11:41 AM
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Originally Posted by GatorGreg
Five Foghat words: Slow ride, take it easy
Gotta be gangsta style. seat all the way back like your sleeping, nice and slow and watch the envy passer bys stare.
Old 07-27-07, 02:28 PM
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stormj
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Originally Posted by GatorGreg
For your own safety I highly recommend that you consider trading in your GX for a Cayenne if you anticipate the need to drive an SUV over 115mph. That said I'd be interested to know what the ungoverned top speed is - I'm guessing about 125.
Make sure it's the Cayenne Turbo.

I replaced my 05 GX470 with an 07 GX470 last weekend, and in the process I testdrove the Cayenne S. What a pile of crap.
Old 07-27-07, 03:41 PM
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RXGS
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i think driving anymore then 110 in the gx isnt that safe. if u want to go that fast or faster may i suggest a x5,range rover sport? or maybe even a mb m63 amg(i think thats wat its called) along with the cayenne
Old 07-27-07, 06:09 PM
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Cool That's pretty fast ....

Originally Posted by LexGX
I know this is kinda crazy going at that kind of speed but i have before. I have an 04 and i was doing 120 and i don't think it stopped at 115. AFter i hit 120 i let off but it felt like it wanted to do more and no indication of it shutting off.
That is pretty fast for something that has the aerodynamic prowess of a brick. I think the gearing/torque matching and wind-resistance would probably dictate you were around the max for the vehicle. Not that I would care to find out what "tread separation" means at that speed.

I have done my share in a twin turbo 3000gt, and vision gets a whole lot narrower at crazy speeds. I guess that's why they make Z rated tires.

I think my truck's speedo and disco have something in common. They both do better in the 70's.


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