essentialspeed

Hello,has anyone looked into the mazda speed governor??
I picked up my car and through a code that same hour..freaked on the service guys over not being able to tell me what went on!!!
A few weeks later, on finally a beautiful day i get to go play in the 8....doesn't the car shutter and fumble and through a code...
finally i get the answer:-(
I can't beleive mazda has in place a speed governor at 220kms??
4th gear 5000rpm...i'm hitting a road speed governor??
Christ my dodge 4x4 cutts out at 240kms, and it doesn't have the stopping power the 8 does .
HAS anybody looked into bi-passing the governor?
We will be installing the Wolf 3.0v4 once our products are dynoed but until then it would be great to get around this safety.
thanks

Sea Ray

Are you sure that you didn't put it into limp mode by possibly spinning the wheels too much? Otherwise, there is no gov. that anyone else has reported.

Oh yea, top speed reported so far has been somewhere around 148-152 mph.

Lawerence

So that would be around 115mph.

Is your car an auto?
either way sounds like something is wrong

zoom44

hmm. wel the ecu cuts the power when the car hasn't reached a certain temp. so if it was cold it could cause that. also the car has a limp mode but once you are in it, it wont turn off by itself so i dont think thats it. must be the auto.

edit: whats a wolfwhateverversion? what are you dynoing?what was the cause of the cell that threw the first hour?

Sea Ray

Didn't Monte report the same thing in his auto? But this one sounds like a m/t.

essentialspeed

Just for the record the 8 is a 6spd...
and the first time they where baffled by the report of a code..5 techy scratching their heads.
The first time it happened the roads where dry went through the gears and hit the governor..engine light flashed intermitantly,cut power power came back on and the engine light canceled itself with 5-10 miles.
second time i was already at highway speeds..basically coming hard of the on ramp..going through the gears.Went through third into 4th and it hit again..same as before.
Mazda says it the road speed governor,cutting the power to lower speed...doesn't matter what gear i'm in i can hit it.

AS for the question regarding the Standalone..
We are a dealer for the Wolf aem system out of austrailia.
The Wolf 3d version 4 hc+ will be installed.
I presently run the wolf 3d v4 hc+ in my 500whp second gen.

essentialspeed

note: 160 kms/hr is 100 miles per hour...

zoom44

it sounds like you are banging up against the cold engine rpm limiter not a speed govenor. if you hit it, it willl throw a cell once the engine gets to the proper temp it resets and allows you to go over the lower limit. it's in the manual.

Sea Ray

What are your RPM's when this hits??

essentialspeed

PLease give me some credit..have owned several rotaries over the years i know not to beat on them when their cold.
-the first time the car was idling in the parking lot while i finished the signing of the papers.
-second time was after driving around town for 1/2 day.
the code was thrown around the 4500-4700 range.
there was no over temp or under temp situation present...just driving it the almost redline going through the gears....Mazda canada has confirmed that there is a governor in place thats why i'm asking for info.we haven't got our copy of the Mazda rx8gt manual :electrical section yet.....

zoom44

giving you all the credit i can given the info i have. the speed limiter should not limit the car in fourth at 5k rpm and @100mph. i and many others been there and over. if it wasn't the rpm limiter than the code that caused the cel should tell you what happened. maybe a misfire or series of them.

Thinthi

according to some magazine i read (i think motor trend) the ecu kicks you out at 147 mph, which is 235 kmh. i have the auto, and last night i brought her up to 119 mph, which is 190 kmh. i would have brought her a little faster but i hit a real nasty curve on the highway and i decided i wanted to keep control of the car, which i managed to, and went through a nasty curve at 119 mph.... yay 50 50 weight ratio. garuntee a 350z couldn't have pulled that off. The govenor should not be kicking you out that early, its prob something else like everyone else on this forum said.

Genom

The US cars are drag limited only. Mine hit 170MPH on a dyno, so there is no speed limiter on the US cars.

I've also taken the car to 138 on the road.

essentialspeed

Hits at between 4200-4600 rpm ,doesn't have to be in a certain gear....4th,5th or 6th

Genom

essential: Thats a definite problem. I think a trip to the dealer and a call to MNAO

TORacing

What do you mean "drag limited only" is there some type of limiter or governor about cause I want to get as much power and speed as I can and that would be a serious problem when racing. Any info if there's one of any kind RPM or MPH or anything, and how to bypass it would be lots of help.

essentialspeed

"i and many others been there and over. if it wasn't the rpm limiter than the code that caused the cel should tell you what happened. maybe a misfire or series of them."

Once again the dealer tryied to pull any hard codes...none present...
If there was detonation or something else with the rotors the "rotor" cel would have went off..
every one is generally confused.
I'm wondering if anyone else here in canada has hit the speed governor i hit? if so was it higher?

Sea Ray

Hmmm, I think he meant drag as in AIR drag

oodlum

"the speed limiter should not limit the car in fourth at 5k rpm and @100mph."

"Personally been at 120mph on the highway, felt like there was plenty more to go."
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The original post said "I can't beleive mazda has in place a speed governor at 220kms?"

220KPH is around 139-140MPH, not 100MPH.

zoom44

help me out here. you said:

something didn't sound right which is why people thought you might have the automatic. on my drive home i found 4th gear and 5k rpm to be 70mph. what gear and speed were you going?

220kmh is 137 mph. so you couldn't have been in 4th in a 6speed.

edit: seems oodlum is on the same track.

zoom44

lets try to pull some of your "problems" together. you also had the ton of oil in your intake. did you change intakes? in your other thread you said you discovered the oil when making a new intake. also you are having your oil pan replaced right?

essentialspeed

Yes ,i still have the stock in place..never ran the car with the new design twin intake.Waiting for the car's issues to get ironed out before we dyno and get our base numbers.
I'm getting the oilpan installed tommorrow and
have severe oil in my intake and oil lose

zoom44

are you still experiencing the oil into the intake? could it be screwing with the maf causing your limitor problem? or if you oil pressure is low or oil level is low(which since you have the bad pan and oil loss this could be it) could be causing the car to tune itself down. if it gets the same code several times in a row it will go into limp mode.

Superfan

I drove it at 143mph this weekend (personal best in this car). The car pulls strong up to the mid 120's but it takes a while to get it up to 140. My FD would get to the 150s in a heart beat, man I miss that car.