[08roady]

Anything out there to get around that darn Rev Limiter? I have got an 825i and it is rediculous how it cuts out at 44 and thats it!

 

[MBDiagMan]

Have you watched the tach at that speed? It is very close to over revving at 44MPH.

 

[fred]

An 825 is not meant to go Fast..Its a working Machine...You wanna go fast Buy a Race Car

 

[fred]

I can sell you 1 ..It goes 112 in the 1/4 mile

 

[Jalhay]

Have you watched the tach at that speed? It is very close to over revving at 44MPH.

What is "officially" the red line of RPM's? Not that I plan to over rev just curious is all...

 

[MBDiagMan]

I don't know the exact red line, but it is about 6,000 RPM, or maybe slightly more.

 

[JJB]

I talked to a guy that specializes in UTV performance applications and privately he's ran the 825i "Cheri" motor at 7,000 rpm and better with no problems. Keep in mind it is a car engine after all. Lots of people on here get offended by the idea of making a Gator go faster. Hell, anything that burns dinosaur bones people have been trying to make go faster. That's the fun in. The 825i was billed as a work and recreation machine. 55 mph should be expected just like other manufacturer's of similar work / recreation machines. When I find a way, my 2017 will run at 7000 rpm when I ask it to. The manufacturer should allow the consumer the choice to either raise or lower their left foot.

 

[JJB]

Have you watched the tach at that speed? It is very close to over revving at 44MPH.

These 3 cylinder short stroke motors will easily run at greater than 7000 rpm with out damage. Some motorcycle 3 cylinder engine run twice the rpm the Gator Rev limiter is set at. Mine cut out at 6050 which is around 44 mph. The Gator being a Work/Recreation machine should achieve 55 mph like the similar configured competitors.

 

[200mph]

Report back when you find a way around the rev limiter. I'm certain others will be interested in what you find or how your modify to achieve the desired top speed.

Good luck!

 

[Bradhill]

I talked to a guy that specializes in UTV performance applications and privately he's ran the 825i "Cheri" motor at 7,000 rpm and better with no problems. Keep in mind it is a car engine after all. Lots of people on here get offended by the idea of making a Gator go faster. Hell, anything that burns dinosaur bones people have been trying to make go faster. That's the fun in. The 825i was billed as a work and recreation machine. 55 mph should be expected just like other manufacturer's of similar work / recreation machines. When I find a way, my 2017 will run at 7000 rpm when I ask it to. The manufacturer should allow the consumer the choice to either raise or lower their left foot.

What was the speed this Specialist reported at 7000rpm and how did he bypass the ECU?

 

[hillbillybubba]

When I find a way, my 2017 will run at 7000 rpm when I ask it to. The manufacturer should allow the consumer the choice to either raise or lower their left foot.

Unfortunately, the general public aren't knowledgeable enough on the subject of engines to NOT keep their foot to the floor up until 7000 rpms on this machine. And that's why manufacturers produce vehicles with rev/speed limits.

 

[JJB]

Unfortunately, the general public aren't knowledgeable enough on the subject of engines to NOT keep their foot to the floor up until 7000 rpms on this machine. And that's why manufacturers produce vehicles with rev/speed limits.

LMAO ....indeed, but how will they learn if we keep dummying down the machines. Person individual responsibility is paramount. It's also becoming non existent. Cars park themselves and Ford p/u will back up a trailer for idiots that are to lazy or incompetent and shouldn't be driving anyway.

 

[hillbillybubba]

but how will they learn if we keep dummying down the machines.

Their chance to learn was BEFORE manufacturers starting doing this. They didn't, and here we are. lol

But it's not for the benefit of the person, more so less aggravation for the company regarding warranties. Besides, on a machine like the 825i, there isn't really that much to be had with a little more rpm without doing some other engine modifications. (The reward isn't really worth the risk)

I work in the automotive performance industry, dyno tuning vehicles and reprogramming PCMs and such, and could probably come up with a way to resolve this speed issue. But honestly, I just don't think it's worth the hassle, for me, when people start slinging rods out the side of the block and blaming me. (And let's be honest, why do the research when only maybe 50 people would want what I had to offer :/ ) But who knows... maybe one day I'll see just how well these 825s hold up to 7,000 rpm!

 

[hillbillybubba]

Person individual responsibility is paramount. It's also becoming non existent.

You got that right!

 

[JJB]

Their chance to learn was BEFORE manufacturers starting doing this. They didn't, and here we are. lol

But it's not for the benefit of the person, more so less aggravation for the company regarding warranties. Besides, on a machine like the 825i, there isn't really that much to be had with a little more rpm without doing some other engine modifications. (The reward isn't really worth the risk)

I work in the automotive performance industry, dyno tuning vehicles and reprogramming PCMs and such, and could probably come up with a way to resolve this speed issue. But honestly, I just don't think it's worth the hassle, for me, when people start slinging rods out the side of the block and blaming me. (And let's be honest, why do the research when only maybe 50 people would want what I had to offer :/ ) But who knows... maybe one day I'll see just how well these 825s hold up to 7,000 rpm!

Understood, well said. It's sad but you are spot on.

 

[hillbillybubba]

Mine cut out at 6050 which is around 44 mph.

Unfortunately, 7000 rpm would only net you 50.9 mph. You would need ~7600 rpms to hit 55 mph. Probably a better idea to look into changing the gearing, versus spinning the motor to the moon.

 

[JJB]

Understood, well said. It's sad but you are spot on.

I've had my 2017 GMC Sierra 1500 6.2 L speed limiter set at 210 mph instead of the factory 100 mph. Not that it'll do that or that I'll try to find the top end. But the point is, that I have the freedom to choose instead of the Ralph Naters stripping my freedom and dictating what I can do.

 

[hillbillybubba]

I've had my 2017 GMC Sierra 1500 6.2 L speed limiter set at 210 mph instead of the factory 100 mph. Not that it'll do that or that I'll try to find the top end. But the point is, that I have the freedom to choose instead of the Ralph Naters stripping my freedom and dictating what I can do.

An interesting thing for you to know for the future, had your engine blown up in the GMC just because of bad luck or whatever, GM could have very well, and highly likely denied you warranty coverage because they can tell if the PCM has been reprogrammed. Even if you set it back to stock before you took it to them for diagnosis. We deal with this a lot at our business.

So yes, you DO have the freedom to do as you choose to the vehicle... which also gives them the freedom to send you back home with a blown engine. :/

 

[JJB]

An interesting thing for you to know for the future, had your engine blown up in the GMC just because of bad luck or whatever, GM could have very well, and highly likely denied you warranty coverage because they can tell if the PCM has been reprogrammed. Even if you set it back to stock before you took it to them for diagnosis. We deal with this a lot at our business.

So yes, you DO have the freedom to do as you choose to the vehicle... which also gives them the freedom to send you back home with a blown engine.

Yup, probably so. I talked to a guy that also dabbles with tuning and ecm mods etc... And he told me he's run the 825 at 7000 or better without damage but just like you, he won't release anything to the public because liabilities, warranties, etc.....
It's been recommended that I find an old school snowmobile racer that used to make their own clutch mods. Fiscally, I ain't rich and the Gator dies chores fine. I just wanted to keep up to a Polaris 700 Ranger on the trails and such. It may be cost prohibitive but I sure would like to see if I, or anyone for that matter, could make this pig fly. Thanks for your insight.

 

[200mph]

There have been a number of these posts over the years and I’ve yet to see anyone post a meaningful increase in top end speed or how they accomplished.

it would be cheaper to buy a second machine (maybe used) that can deliver to desired top speed out of the factory.