Big Bore Kits for M6000, who would be interested?

[Speed Shop Inc.]

We are considering making a new cast cylinder with exhaust valves like the new 800 dsi that also controls the sub exhaust ports for the M6000. We can do it two ways to either make it a 700cc or 800cc. To do the 800cc version, the crankcase would need to be machined in order for the cylinder to fit onto it. For the 700 version, we can make it drop right on. I would guess the 700 kit would be about 155hp hp and the 800 kit about 175 hp.


Would you M6000 owners be interested?

 

[kidwoo]

Not currently but if you really can hit those numbers then hell yeah, I'll go buy one just with the kit in mind.


I'm always kind of poking around for polaris 6 and 700s for a backup sled but that's mostly because the 800s are so sketchy. Seems like there are way fewer AC 600s out there because the bigger motors are fine.

Just some thoughts.

 

[IgnantJr]

SO how much lighter is a 600 then an 800?

 

[kidwoo]

SO how much lighter is a 600 then an 800?

Almost nothing.


It's the difference in riding a 250f or 450f dirtbike though. Less moving mass makes it a little more nimble feeling to move around. Even though the weights are really close.

Us shorties really notice that kind of stuff

 

[Thunder101]

M2C is there would not be enough interest to make it worthwhile. My thinking is if they wanted more HP they would have bought the 8.
People that buy the 8 are after the power. Maybe look a stroking the Zuk 8, that Terra Alps sure seems to be making great power from stoking the Poo. At least the numbers on Dyno Tec were impressive.

 

[polaris dude]

Out of curiosity what would be the benefit between a 600 bore'd to an 800cc? Obviously the 700 makes sense because they no longer offer that option stock, but why wouldn't I buy an 800 cc stock vs a 600 BB to 800?

 

[kidwoo]

Out of curiosity what would be the benefit between a 600 bore'd to an 800cc? Obviously the 700 makes sense because they no longer offer that option stock, but why wouldn't I buy an 800 cc stock vs a 600 BB to 800?

I've never ridden a bored out 600 but I'd think it would handle differently with the smaller case and bits. I could be completely pulling that out of my a$$ though.

 

[sno*jet]

case looks same size in the pics, maybe thats why they weigh the same.

 

[6000rr]

We are considering making a new cast cylinder with exhaust valves like the new 800 dsi that also controls the sub exhaust ports for the M6000. We can do it two ways to either make it a 700cc or 800cc. To do the 800cc version, the crankcase would need to be machined in order for the cylinder to fit onto it. For the 700 version, we can make it drop right on. I would guess the 700 kit would be about 155hp hp and the 800 kit about 175 hp.


Would you M6000 owners be interested?

What would your estimate be on the cost of the 700 big bore kit? I would probably be interested in one for my 6000rr for 1000-2000 feet of elevation. If i could make 600 perform like an 800 for a couple grand, i probably would over buying a 2018 8000 dsi. I would also be interested in a bolt on performer kit like the riot kit or exterminator kit, with either single or twin pipes. Is it possible to get the hp of a 6000 up into the 130's with just bolt-ons mods and a fuel controller?

 

[0neoldfart]

Handling is different

I've never ridden a bored out 600 but I'd think it would handle differently with the smaller case and bits. I could be completely pulling that out of my a$$ though.

I installed a Carl's 660 kit on my wife's ProRMK two seasons ago, and although I've never had it on a dyno, I can tell you it rips (has no problems staying with a stock M8000). But the fun factor is in the handling - feels like a 125 MX bike, revs really quick, and is just a blast to ride. Because it doesn't have the torque of the 800's, you have to be on your game when riding it - it will likely make you a better rider IMHO. So I imagine that although an 800 is a logical choice for most, there would be a market for this simply cause of the fun factor...

 

[Speed Shop Inc.]

Out of curiosity what would be the benefit between a 600 bore'd to an 800cc? Obviously the 700 makes sense because they no longer offer that option stock, but why wouldn't I buy an 800 cc stock vs a 600 BB to 800?

The main reason would be if you already had a 600 and wanted to upgrade the power of the machine instead of a new machine. The cost would be less.


But this is why we are putting out a feeler, so see what the interest level is.

 

[6000rr]

The main reason would be if you already had a 600 and wanted to upgrade the power of the machine instead of a new machine. The cost would be less.


But this is why we are putting out a feeler, so see what the interest level is.

Thats what my thought was as well. Do you have any idea what a rough cost would be for the 700 big bore as it should be cheaper then the 800 as it wont need the case machined

 

[Speed Shop Inc.]

Thats what my thought was as well. Do you have any idea what a rough cost would be for the 700 big bore as it should be cheaper then the 800 as it wont need the case machined

Technically we could do a 700 kit by boring out the stock cylinders. Then port them, replate, billet head, pipe mod, fuel controller. That would be a pretty reasonable kit do to. $1895 plus the fuel controller and a pipe mod would be suggested too. $399 and 249. I could do those as soon as this summer. That might be our best route for best bang for your buck. I think 150 hp is doable pretty easy.
Boyesen has new reeds for them too.