dougc Posted April 18, 2005 Share Posted April 18, 2005 My friend at work today told me that his 05 Mazda 6 is governed at 115 mph. He was on the highway last night and when he reached this speed the car starte bucking slightly and he couldn't go any faster. I was wondering if any one new if the 05 Legacy (turbo or not) are governed and if so what speed do they stop at? I haven't gotten my Legacy up to 115 mph yet to find out if it can go beyond that. Link to comment Share on other sites More sharing options...
doogdog Posted April 18, 2005 Share Posted April 18, 2005 My friend at work today told me that his 05 Mazda 6 is governed at 115 mph. He was on the highway last night and when he reached this speed the car starte bucking slightly and he couldn't go any faster. I was wondering if any one new if the 05 Legacy (turbo or not) are governed and if so what speed do they stop at? I haven't gotten my Legacy up to 115 mph yet to find out if it can go beyond that. I believe the Legacy is speed limited to 130 MPH. With a Cobb v 1.02 reflash, this speed limiter is removed. Not that any of us routinely go over 130 MPH, it's a good feeling to know that we can if we want to:D. I'm not sure at what speed we run out of gearing. Rick Link to comment Share on other sites More sharing options...
ChE Outback XT Posted April 18, 2005 Share Posted April 18, 2005 As far as I know, the LGT/OBXT is only governed at the redline, though others have mentioned a governer at about 140mph. There was a post of someone at 137mph (which he was sufficiently flamed for), so you're good to there, at least. Link to comment Share on other sites More sharing options...
rallispec Posted April 18, 2005 Share Posted April 18, 2005 yes, thier is a top speed governor -- 135-ish (not sure on the specifics.... and at that speed no speedometer is reading 100% accurate anyhow) THe latest Cobb AP ECU Flash removes the top speed limiter. Link to comment Share on other sites More sharing options...
scans007 Posted April 19, 2005 Share Posted April 19, 2005 Mazda 6 gov = 120mph (I hit it driving mine when I had it) LGT = 135mph (like rallispec said) LGT w/AP(map 1.02) = No gov (like rallispec said) Link to comment Share on other sites More sharing options...
HansGT Posted April 19, 2005 Share Posted April 19, 2005 there was a thread where a guy in Germany mentioned he had the governer off his H6 Legacy and was doing 155 on the autobahn. Link to comment Share on other sites More sharing options...
SUBE555 Posted April 19, 2005 Share Posted April 19, 2005 The governor is something around 140, it's at least 137. Link to comment Share on other sites More sharing options...
j_evans Posted April 19, 2005 Share Posted April 19, 2005 there was a thread where a guy in Germany mentioned he had the governer off his H6 Legacy and was doing 155 on the autobahn. hmmm... since it's the autobahn... this speed must have been 155km!!! :lol: Link to comment Share on other sites More sharing options...
sde Posted April 19, 2005 Share Posted April 19, 2005 I removed the governor myself, but I live in CA. It may be different where you are. http://codenewbie.com/fun/images/governor.jpg Link to comment Share on other sites More sharing options...
LGT Chris Posted April 19, 2005 Share Posted April 19, 2005 137mph stock 149mph on 1.02 AP map Both done on a track. No flames please. 2005 Subaru Legacy 2.5 GT Luxomissle waGONE Link to comment Share on other sites More sharing options...
Avishar Posted April 20, 2005 Share Posted April 20, 2005 speedometer read 139 when it refused to accelerate anymore so something between 130-137 is believable. No, not done on public roads... Link to comment Share on other sites More sharing options...
firedawgs Posted April 20, 2005 Share Posted April 20, 2005 Mine is not governed with an AccessPort V1.02 Updated my vBGarage: Link to comment Share on other sites More sharing options...
rallispec Posted April 20, 2005 Share Posted April 20, 2005 137mph stock 149mph on 1.02 AP map Both done on a track. No flames please. could it have gone faster than 149 if you had a longer track -- or did you run out of gear? Link to comment Share on other sites More sharing options...
Guest turboman Posted April 20, 2005 Share Posted April 20, 2005 I would think we wouldn't be able to hit the 6500 rpm limiter in 5th gear. Too much wind resistance and not enough gear reduction. Link to comment Share on other sites More sharing options...
cotmfk Posted April 20, 2005 Share Posted April 20, 2005 yes, thier is a top speed governor -- 135-ish (not sure on the specifics.... and at that speed no speedometer is reading 100% accurate anyhow) THe latest Cobb AP ECU Flash removes the top speed limiter. I was under the impression that if you have nav/gps your speedo is 100% accurate all of the time....? I do understand cars without GPS (like all lgt at this point in the us) are inaccurate from the factory. Link to comment Share on other sites More sharing options...
IwannaSportSedan Posted April 20, 2005 Share Posted April 20, 2005 They are run from gears mathematically chosen to get as close to accurate as possible, but due to tire wear, weight, non-stock tires, and just the engineering aspects of gear ratios, they are not 100% dead on. Some cars use hall-effect sensors that read a rotating magnetic signal and mathematically calculate that way, with the same caveats for tires, etc. So, again, not gauranteed accurate. Usually, if a speedometer is off, it is off by a rate. It is closer to accurate at slow speeds, and the faster you go, the larger the disparity. My motorcycle's speedo is off almost 5mph at 65mph. that's bad. Off by 2-3mph at ~135mph is pretty close. GPS does not take into account any rotational diameters of wheels or gears. Only radio triangulation with usually 3 orbiting satellites, and calculating the transit time to and from each satelite to your GPS unit. It provides instantaneous location, and movement measured over time provides very accurate direction and speed. Radio waves travel at the speed of light, regardless of your tire inflation, or most anything else, so the trigonometry is the same all the time, and can be calculated MUCH more accurately. As for cars with GPS NAV, or OnStar, or whatever else being able to use the GPS speed reading, that depends on the car, and if the electronics packages are integrated to that sort of a degree. Some cars probably have NAV that computes speed separately from the ECU or Chassis computer calculating road-speed, but perhaps some are indeed integrated, and the gauge reads the GPS output. I have no idea how you would verify that they are sharing data. Link to comment Share on other sites More sharing options...
DickDastardly00 Posted January 3, 2006 Share Posted January 3, 2006 Is there any way to just reflash your ECU to remove the top speed limiter without messing with anything else? It seems that a lot of people that run the Cobb V 1.02 (and higher) map complain about Gas mileage being significantly worse than stock. So I was wondering if there was a way to just remove the Top Speed limiter without messing with the other ECU aspects. ♪Emancipate yourselves from mental slavery; None but ourselves can free our minds.♫ -Bob Marley, Redemption Song Link to comment Share on other sites More sharing options...
ACE THIS Posted January 3, 2006 Share Posted January 3, 2006 at what RPM is that engine spinning when you are at 137 MPH??? i bet it is up there!?!?!? Link to comment Share on other sites More sharing options...
DickDastardly00 Posted January 3, 2006 Share Posted January 3, 2006 Lol, I haven't personally taken my car up to that speed, so I wouldn't know what the RPM is at. I was just curious about the governer/ speed limiter, and what the options were regarding it. I'm pretty sure the Cobb AP would allow you to reprogram just the top speed limiter, but I'm not positive. ♪Emancipate yourselves from mental slavery; None but ourselves can free our minds.♫ -Bob Marley, Redemption Song Link to comment Share on other sites More sharing options...
Drakuun Posted January 3, 2006 Share Posted January 3, 2006 My NA hit 115, but it was downhill with a tail wind-seriously took me about a full 3 miles to get from 100 to 115 lol. Oh yeah all on track *rolleyes* Link to comment Share on other sites More sharing options...
DickDastardly00 Posted January 3, 2006 Share Posted January 3, 2006 Back in the day, I hit 110 MPH in my Subaru Outback Sport (Impreza) before the governer kicked in. Of course that was all on the track too:icon_evil LOL! ♪Emancipate yourselves from mental slavery; None but ourselves can free our minds.♫ -Bob Marley, Redemption Song Link to comment Share on other sites More sharing options...
karlxmas Posted January 3, 2006 Share Posted January 3, 2006 I GPSed mine at 142 but it cut off at around 139 speedo reading. Not much gear left anyway. BTW it does get there quite quick. Link to comment Share on other sites More sharing options...
karlxmas Posted January 4, 2006 Share Posted January 4, 2006 BTW at 135 its at about 5400 rpm. Link to comment Share on other sites More sharing options...
CrakuhBlack Posted January 4, 2006 Share Posted January 4, 2006 I don't believe any of you. I'm gonna go test it out for myself...be back in 10. (this is a joke so keep your panties straight) I removed the governor myself, but I live in CA. It may be different where you are. http://codenewbie.com/fun/images/governor.jpg How do you just "remove" the governor? Link to comment Share on other sites More sharing options...
DAP Posted January 4, 2006 Share Posted January 4, 2006 How do you just "remove" the governor? First you need a bunch of signatures on a petition to impeach him.... Link to comment Share on other sites More sharing options...
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