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DOHC - 2.3L Duratec / Mazda L Engines Discussions and Topics specific to the Duratec 4 cylinder engines

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  #1  
Old 09-02-2004
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Governors

Ok so i have looked far and wide for a solution to this problem. I have a 2.3 5 spd Manual 02 ranger. Does ANYONE know of a safe way to remove the governor, short of replacing the engine? Right now i top out at approx. 92mph with my RPMs at 4500 in 4th. So far the stories ive heard have sounded a little extreme such as setting up some screwy wiring to a switch which supposedly turns off the governor but at the same time knocks out your speedometer as well as screws with your power brakes and a whole lotta other stuff (i sorta stopped reading it entirely once i got to the speedometer thing). Anyway all advice and help is welcome.
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Old 09-02-2004
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Governors

It' is controlled by the computer so replacing the engine won't do anything. The reason Ford does this is because your stock tires are not rated for a higher speed. The only way around it is to get performance chip, re-program the chip you have now, or disconnect the speed sensor wire. Disconnecting that wire won't let the computer know how fast you are going so there will be no limitation. Of course, you also lose your speedometer and odometer for the same reason.
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Old 09-03-2004
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The tires may be part of it, but I think the main reason is because of driveshaft whip. At high speeds it looks like a jump rope. Two things have contributed to this, the driveshaft no longer employs a carrier bearing and therefore it is longer, the gear ratio has increased to 4.10. That means a really long driveshaft spinning really fast. I am sure that would be the first thing to fail on extended high speed runs. If you're lucky the front u-joint will break and you can do a cool pole vault at 100mph.
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Old 09-03-2004
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I have read this too. That there is an inherant drivetrain problem with the Rangers that could cause failure at extended high speeds. I.E. Our trucks are not made for triple digit speed.
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Old 09-03-2004
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You could do it, but you would need an aluminum driveshaft and you would have to regear to say a 2.73 ratio. I don't think that would be a good choice for a 4 banger though.

BTW the carrier bearing thing only applied to supercabs. A regular cab won't have as bad of a driveshaft issue. Since a 4 doesn't come in a supercab you could probably go a little faster. But how fast is it really going to go?
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Old 01-29-2005
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well is it ok to go 85-95 mph? or not
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  #7  
Old 01-29-2005
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Driveshaft loops are your friend.
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Old 01-29-2005
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Quote:
Originally Posted by Mnemonic
I have read this too. That there is an inherant drivetrain problem with the Rangers that could cause failure at extended high speeds. I.E. Our trucks are not made for triple digit speed.
The driveshaft is the limiting factor for governed speed on many rear drive vehicles, not just Ranger. All driveshafts have a safe RPM limit. Sure, Ford knows how to build a stiffer driveshaft that can withstand higher revs. But the cost goes up disproportionately with an increase in diameter and thickness and/or a change of materials. Why spend the money for a 120 MPH driveshaft on a compact truck in 75 MPH America?
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Old 02-01-2005
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your right why would they wanna spend money on it when 25% of rangers are used for tunning and off roading; the other % are sold to state work crews and other work co. (water company & stuff)
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  #10  
Old 02-01-2005
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Theres always an after market part. You can get the chip/reprogram/pull the wire, as stated before. If you do that then you are taking the chance of dying basicly.. so if you want to do this, you can get an aftermarket drive shaft If you can't find a mass produced one you can get one made.

So no matter what you want to do someone has an after market part for it, it's just the fact that you might need another aftermarkter part so you don't DIE
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  #11  
Old 02-02-2005
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Quote:
Originally Posted by BlackRanger93
well is it ok to go 85-95 mph? or not
it's OK to go 85-92
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Old 02-02-2005
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Just don't expect to convince Johnny Law that.
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Old 02-22-2005
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Been there, done that, will have to scan up the ticket sometime
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  #14  
Old 02-22-2005
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mines alittle diff at 4500 rpm..
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  #15  
Old 02-22-2005
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Quote:
Originally Posted by FoMoCoEdge
mines alittle diff at 4500 rpm..




i found ^---these appropriate
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  #16  
Old 02-24-2005
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I've found it weird that i've been to 100mph without it kicking in. 100mph is as far as i've made it.
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  #17  
Old 02-24-2005
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Quote:
Originally Posted by Diabolic
I've found it weird that i've been to 100mph without it kicking in. 100mph is as far as i've made it.

where you going down hill?
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  #18  
Old 02-24-2005
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Quote:
Originally Posted by Gay-briel
where you going down hill?
I can't remember... I may have been.
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  #19  
Old 02-24-2005
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Quote:
I am ARRNOLD, GOVANOR OF CAL-E-FOR-KNEE-AH, turn off all govanors of Ranghas...
fastest i've ever gotten mine is a bout 70....i think my truck wil blow up or a cop will tag me first
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  #20  
Old 02-24-2005
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Quote:
Originally Posted by Diabolic
I've found it weird that i've been to 100mph without it kicking in. 100mph is as far as i've made it.
I think the speed the limiter comes on varies from model year to model year.
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  #21  
Old 03-11-2005
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Not bad for a first ticket

6wk suspension, remedial course, 100$ in fines.
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  #22  
Old 03-11-2005
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Yea nice job....
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  #23  
Old 03-12-2005
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nice
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  #24  
Old 03-12-2005
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heehee......nice ticket......I've played with the idea of going faster than 100mph. My 97 conked out around 100mph one day. I don't think is was safe either. I also think the speedometer read that because I had 235/60 tires on which is probably a smaller diameter than normal. I dream of my 4-banger going at least 120mph. maybe a better gear ratio?
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  #25  
Old 03-12-2005
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Wow, u got off easy on that ticket if u had gotten that in VA u could have prolly kissed ur license goodbye for about a year and a half then prolly about $300 in fines.
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