the Scion tC has a top speed governor, right? - Scion tC Forums
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post #1 of 25 (permalink) Old 06-23-2005, 07:46 PM Thread Starter
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If so, did a lot of people disable the governor, because I hear a bunch of tC owners saying that they've reached speeds higher than 127 mph . And how do you go about disabling it? Use some kind of ECU reflash program?
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post #2 of 25 (permalink) Old 06-23-2005, 08:21 PM
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They're lying.

And no. Not without a ECU flash, but do you have the thousands of $ for the tool/ and the knowledge to do it? I know I dont.

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Scion went with this design for the production of the tC.
This has been generally regarded as a very bad idea, and has made alot of people very angry."
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post #3 of 25 (permalink) Old 06-24-2005, 01:32 AM
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I overheard some guy say that his friend went 190 in a corolla the other day....I just shook my head.

A friend of mine said he went 175 in his dad's dodge RAM. I called the bullshit police on that one.
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post #4 of 25 (permalink) Old 06-24-2005, 01:38 AM
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I got my tC to around 115 and to be honest, it didn't feel like it had much more room to go. Gets to 100 pretty quick, but from there on out its a dog. I also know someone who insist he's topped 130 in his tC, I called him out and he said next time he'd try to snap a pic, until then, i'm also raising the bull #### flag

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post #5 of 25 (permalink) Old 06-24-2005, 02:19 AM
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Speedometers are terribly inaccurate at speeds over 100 mph. Tire slip becomes a big issue, and if you look into top speed contests you'll find the only way to measure really high speed is with timing lights.

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post #6 of 25 (permalink) Old 06-24-2005, 07:57 PM
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Does the tC ECU get its speed reading from the cluster?

I know in the Cavy it did and ppl would put a switch on the power to the cluster so the ECU didnt know how fast the car was going, there by letting them go faster. (or as fast as a cavy would go lol)

*****NOTE*****
*If you have an auto the ECU will think the car is at 0mph and down shift = boom
**The switch is viewed as playing with the odometer = illegal
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post #7 of 25 (permalink) Old 06-24-2005, 10:40 PM
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on the way back from up north (it's a michigan thing) i had the cruise control on at 126...

so it definitely goes that fast, at least according to the speedometer... i dunno if there was tire slip or whatever, but if the cruise was on, i'd think it was pretty constant/accurate?

if i go that fast again i'll take a pic with my phone and post it, if you'd like.

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post #8 of 25 (permalink) Old 06-25-2005, 02:11 AM
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When I initially went to test drive the Scion the manager of the place told me he had some connections to get some chip that removes the RPm and top speed govenors. Now keep in mind the guy was trying to sell me a car, but do you think this was a true statement?
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post #9 of 25 (permalink) Old 06-25-2005, 03:02 AM
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No.




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post #10 of 25 (permalink) Old 06-25-2005, 10:49 AM Thread Starter
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Quote:
Originally posted by lo bux racer@Jun 23 2005, 11:19 PM
Speedometers are terribly inaccurate at speeds over 100 mph. Tire slip becomes a big issue, and if you look into top speed contests you'll find the only way to measure really high speed is with timing lights.
Ah, I see. What's a timing light?
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