BMP 860 BB
- Thread starter Lefty
- Start date
are those hp #s with the power comander and pipe?
it looks like with those the price jumps up to $3000
had a friend running their head and liked it
thanks for the info
it looks like with those the price jumps up to $3000
had a friend running their head and liked it
thanks for the info
L
Lefty
Well-known member
Ran their head, pipe, can & PVC last yr, ripped all year. Had a little fine tuning to do for my elevation. After that pull & go all yr..
. Jimmy called this morning to let me know dyno results. Then called back this evening to let me know, my cylinders were bored & ported, on the way to being plated! I can't wait to get this new one out here.....Lefty Yes, pipe & pcv.
. Jimmy called this morning to let me know dyno results. Then called back this evening to let me know, my cylinders were bored & ported, on the way to being plated! I can't wait to get this new one out here.....Lefty Yes, pipe & pcv.
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Ran their head, pipe, can & PVC last yr, ripped all year. Had a little fine tuning to do for my elevation. After that pull & go all yr..
I thought you said they were just putting curb feelers on it? LOL. 1rmbndt, took me a minute to figure that out.
G
Going West
Well-known member
If those number are to be believed then they are making 3-7 more hp then brad is getting out of his PAR 910 BB. He posted his numbers at 174hp.
Something does not seem to jive with this picture.
Something does not seem to jive with this picture.
J
jafraune
Well-known member
These are the numbers BMP claims to have dyno'ed this past week... I should have mine on the snow in about 2wks....
Lefty, that depends upon how much beer you buy me....lol. Jack
R
R44guy
Well-known member
I like the claimed improvement in power at 177 hp is huge for the money. But with boring and porting on the stock heat distorted factory cylinders scares me.
I can only imagine this will cause more issues and failures with this set up in the long run. I hope I am dead wrong and maybe they have found a magical piston or something?
I can only imagine this will cause more issues and failures with this set up in the long run. I hope I am dead wrong and maybe they have found a magical piston or something?
The 2013 skirts are thicker for a reason in stock form (compared to later Polaris 800 motors). I would be hesitant to make them thinner by boring out the stock monoblock. One could hypothesize the issues that plagued some Polaris motors in previous years were “fixed” for 2013 with the thicker skirts etc. and taking material off will result in similar failures. On the other hand, one may not experience any issues at all. I hope all goes well and your sleds rip!!!
BMP says alot of things on HP, their dyno seems to read much higher than any other dyno I have seen numbers from and they seem to have a hard time replicating their dyno results in the field. I would take any number off their dyno and on the conservative side drop 15-20 HP from it.
They claim the bolt on 600R to 800R with the CFI cyl makes 175 HP through a modded stock pipe, billet head, stock cyl and 40mm carbs... sure, I believe that, but your 860 with porting, 8% more displacement and 48mm throttle bodies only makes 2 more HP???
Take it with a Grain of salt would be my advice.
V
Vi-PEC Powersports
Well-known member
those numbers are just a pile of crap........first, the polaris 800 makes with an IAT at 20 degrees 130 hp and that is the kinda IAT they are seing right now(even it it was colder ,not much diff. 1 or 2 hp max). next, with 800cc polaris industries managed to make 130 ish hp wich is 0.16 hp per cc........and now BMP claims 47hp with an increase of 60cc wich equals 0.78 hp per cc, on top of that with a simple cylinder gring, no stoker or new crank like PAR......5 times what polaris industries with all their engineers was able to get??? i wonder who's BSing people here........ if it was a bit realistic a least...
PAR big bore kit is the real deal dude, not saying declared hp are right but it is a "real big bore kit"
i know christmas coming but please all of us need to stop believing in santa claus!!!
Even a half *** dyno operator can spit out any number you wish...
BMP has baselined them between 148 to 152 depending on sled and fuel selection. So if your spliting in the middle lets say 150 to 177.
27 HP its a little stretch but maybe. Starting line shows a 21 HP increase with a stage 4 no BB so if you take that into acount its feasable.
I know for a fact these cyclinders need porting to make them run happier and it makes a big difference.
HP numbers use as a reference not the bible. 25 HP gain seems about right. I like the aftermarket cylinders better especially for the cooling aspect but if you want that you need to call up Carls cycle and get a 900 but you will also pay alot more for that then the BMP kit.
Its all personal preferance guys.
27 HP its a little stretch but maybe. Starting line shows a 21 HP increase with a stage 4 no BB so if you take that into acount its feasable.
I know for a fact these cyclinders need porting to make them run happier and it makes a big difference.
HP numbers use as a reference not the bible. 25 HP gain seems about right. I like the aftermarket cylinders better especially for the cooling aspect but if you want that you need to call up Carls cycle and get a 900 but you will also pay alot more for that then the BMP kit.
Its all personal preferance guys.
K
knifedge
Well-known member
--Cat motors are getting 30+HP @194-200HP with 900cc bored cylinders and stock pipe with RKT and BMP(BMP kit may have more add-ons). Why not get 27hp out of a Polaris? Just changing out the unbalanced, out of spec, overweight pistons with a RKT Wossner set in a Polaris 800 gives a noticeable boost + add a head kit for more. Add big bore, porting, pipe, fuel, etc. better expect at least 27HP.
