speed gov update

Murderface · Jan 17, 2013

AC Expressway has plenty of room for top speed runs.....mine was 159.3mph

Tanaka · Jan 17, 2013

I know I'm reading the truck is governed at 124mph...but the fourth month of owning my truck, I tried racing my buddy in his gti on the freeway. I topped out the speedometer, so I don't know my exact number, but the gti was only pulling away very slowly with his speedo reading 135mph...

Im not trying to say my truck isn't governed, nor that xrunners in general aren't governed, but that wouldve been a 11mph difference if I was only going 124mph...no way the gti wouldve been pulling away that slowly...

JFrame · Jan 17, 2013

How accurate are most car's speedo's at high speeds? I know on sport bikes kids were claiming to be hitting in the 180's and when they got a GPS they were surprised to see a much lower number.

AFP520 · Jan 17, 2013

JFrame said:
How accurate are most car's speedo's at high speeds? I know on sport bikes kids were claiming to be hitting in the 180's and when they got a GPS they were surprised to see a much lower number.

To be fair, you can't really compare a cars speedo to a bike speedo. The bike speedo can be off a lot if the tires get worn.

JFrame · Jan 17, 2013

AFP520 said:
To be fair, you can't really compare a cars speedo to a bike speedo. The bike speedo can be off a lot if the tires get worn.

I know a lot of things can play into account on a bike. Most of the time's it's cause kids changed out their sprockets and would drop a tooth in the front and add a few in the back. I just wasn't sure how accurate they were in the cars at 100mph+

AFP520 · Jan 17, 2013

JFrame said:
I know a lot of things can play into account on a bike. Most of the time's it's cause kids changed out their sprockets and would drop a tooth in the front and add a few in the back. I just wasn't sure how accurate they were in the cars at 100mph+

I had a 600RR and I want to say it came with dunlop tires. I swapped them out with michelin pilot powers, and the speedo was off. You really should attempt to use RPM as the speedo in your head. I forget how to calculate but it can be done and it's more reliable because the RPM's don't lie!

Workman3886 · Jan 17, 2013

I've buried the speedo a few times but I have no clue how fast I was going, above 120 I know lol

scoutdeed69 · Jan 17, 2013

sure you can use a gps...but remember its a satillite signal...you can lose that signal often if your going to go fast at time's, for it to keep up with you...i have seen it with mine!...some times its not going to keep up if you loose that signal only once that signal comes back! Just a thought to all that use a gps for a speedo!!!!

Rob

rennurx · Jan 17, 2013

Download speed view. It's a pretty cool app. Its pretty much dead on .

Murderface · Jan 17, 2013

Tanaka said:
I know I'm reading the truck is governed at 124mph...but the fourth month of owning my truck, I tried racing my buddy in his gti on the freeway. I topped out the speedometer, so I don't know my exact number, but the gti was only pulling away very slowly with his speedo reading 135mph...

Im not trying to say my truck isn't governed, nor that xrunners in general aren't governed, but that wouldve been a 11mph difference if I was only going 124mph...no way the gti wouldve been pulling away that slowly...

10mph difference on the highway is very little difference so ya if he was claiming 135mph then u were doing at the least 10mph slower probably 15 if u weren't bouncing off the limiter

genesis96 · Jan 17, 2013

http://www.ecfr.gov/cgi-bin/text-id...8&view=text&node=49:5.1.1.2.36.7.12.8&idno=49

This can help explain discrepancies. Just saying...

Torspd · Jan 17, 2013

Larger diameter tires or larger wheel tire combo will show slower speeds on the speedometer. Thus allowing you to actually go faster than the factory speed governor. Wheel size calculator usually shows the speed difference. So that can be used as a reference.

Also, when I had the X-1, I still wasn't able to go faster than the factory limiter. That was really annoying.

genesis96 said:
http://www.ecfr.gov/cgi-bin/text-id...8&view=text&node=49:5.1.1.2.36.7.12.8&idno=49

This can help explain discrepancies. Just saying...

Wow. That can be way off then. Time to upgrade to an aftermarket speedo.

JFrame · Jan 18, 2013

genesis96 said:
http://www.ecfr.gov/cgi-bin/text-id...8&view=text&node=49:5.1.1.2.36.7.12.8&idno=49

This can help explain discrepancies. Just saying...

I knew the 5mph thing. That's why if you get a ticket that is 5mph over or less you can fight it and win because it is within legal limit that your speedo be off by up to that amount.

Murderface · Jan 18, 2013

Ya plenty of times I've data logged knowing I had the speedo pegged at 120mph and the data log showed only 114mph the one time. Other then that I'd say my speedo is very close even with have the needle off so many times. I pass a speed sign on the way to work and at 25mph mine is dead on, there's another at 40mph and mines dead on......as soon as u double that speed all bets are off

Mark why wouldn't the X-1 allow u to pass the speed governor? Ur a 6spd so that's not it.....was it tire size related since u use to have a bro truck lol?

Morris Hutchinson · Nov 24, 2013

good day all. what exactly was done to remove the speed limiter. was it just cutting a wire?

waleed · Nov 24, 2013

Interesting thread, I am so tired of my speed limiter, the speed limit on my truck is at 170kmh (105mph) -_-
So I assume that your ECU guys is same as mine? Or should it be different since I have a different gearbox...hmm... I will have to search for violet wire with white stripes then xD I'm gonna do a dyno pull to see if it affects the VVT-I thing or not! Hopefully next week or on Thursday.

Workman3886 · Nov 24, 2013

Morris Hutchinson said:
good day all. what exactly was done to remove the speed limiter. was it just cutting a wire?

Check page 9 and up

smftexas86 · Nov 26, 2013

waleed said:
Interesting thread, I am so tired of my speed limiter, the speed limit on my truck is at 170kmh (105mph) -_-
So I assume that your ECU guys is same as mine? Or should it be different since I have a different gearbox...hmm... I will have to search for violet wire with white stripes then xD I'm gonna do a dyno pull to see if it affects the VVT-I thing or not! Hopefully next week or on Thursday.

hope you didn't just read the how to and skipped the rest. I got excited to, till I saw Gadget talking about bearing wear and other things.

that guy knows his shit and if he says the person he got the info from knows his shit, I am not touching that wire mod with a ten foot pole lol

autobodyX · Nov 26, 2013

I proved that these work on the 09 up at the last trackday meet at VIR.
They are hard to find on the site for a reason. http://urdusa.com/advanced_search_r...a5ad6d2f4eec519883349e8&search.x=0&search.y=0

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