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Over the past few months I have been researching Mountain Performance in Draper Utah.
http://mountainperformance.com
As you can see, they build all kinds of performance power upgrades for Yamaha & Polaris Snow machines & SXSs, as well & SXS upgrades for Arctic Cat & Kawasaki.
I got talking with them a couple of months ago about the possibility of doing a performance tune on the ECM, or possibly a Supercharger for the Brutus project. (2010 Ranger 800xp)
Today I took Brutus over there; Heath looked at it for a couple of minutes and then said, “I want to Supercharge it”.
He then told me that much of the technology for the system is transferable from the RZR Supercharger system that they already make. They are doubling the rear wheel horsepower on the RZR with only 6# of boost. And the throttle response of their RZR is instantaneous! I’ll see if I can find the video that was shot of the race between their RZR at 6# of boost vs My RZR at 9# of boost. I got spanked from the starting line, and it took the entire race to catch up.
http://www.youtube.com/watch?v=11CH9lBxEzg
Long story short, Brutus is getting blown! MPI has it right now, and it should be ready in about a week. I will keep you all posted with pictures, as well as rear wheel Dyno charts.
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Long story short, Brutus is getting blown!
Oh man...I was going to say something, but why don't I just let everyone take that one in a minute....lol.
01 GMC Sierra 2500HD 8.1L w/intake, programmer, Airbags
06 Tahoe Transport 28 WTB
08 Gen 3 Rzr w/bighorns, ss108s, aftermarket airbox, FUTV UHMW skid & A-Arm Guards, 2" wheel spacers, Rock Slider Nerfs, Lonestar intake, S Flares, 3000# Gorilla winch, Tusk soft top. Gibson Exhaust, Duner Tunes Stero, Odyssey PC925L battery, Progressive Springs
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ummm, WOW!
Very cool! That 800 runs really good in stock form, should fly now....
Kyle
05 660 rhino
09 rzr s
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Somehow I knew you cave and force feed your Brutus
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What can I say?!
I’m a sucker for forced air!
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Is olive oil (popeyes girlfriend) going to do it?
CHEATER!
Are we camping yet?
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This thread is getting out of hand and I havent even put in my 2 cents yet.
08 700Fi Rhino Yahama SE . . . . . . [img]http://i818.photobucket.com/albums/zz107/titanrhino/alexis-lopez8.jpg[/img] . . . . . . 08 Nissan Titan PRO4X
(2) 09 Yamaha Grizzly 550. 05 Arctic Cat ZR900 snopro. 05 Honda CBR600RR. 02 Yamaha Raptor 660. 03 Honda R12X Aquatrax. 93 Honda 300EX.
93 Arctic Cat Thundercat 900. 10 Jeep Wrangler Mountain......
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NICE! :shock:
Are we camping yet?
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I just got back from Mountain Performance.
I just found out that the Ranger 800 Supercharger kit will be going into production!
I got a copy of my stock XP 800 (Brutus) dyno graph. The first thing I noticed is how much power this thing puts to the ground in stock form compared to the standard RZR.
Apparently this new engine is pretty strong, and the new drive train is very efficient!
Here is a copy of the Ranger XP 800 dyno graph and a graph for the standard RZR both before & after the Supercharger. All tests were done on the same Dyno.
Compare for yourself…
I got a preview of how the general layout of the system. These components seen are from the RZR supercharger system, and are just set in place to show an idea of how it will lay out.
The elbows will be much different when things start going together on Brutus. The intercooler will have a fan on it just like the RZR system. I also learned that since the Supercharger is so efficient, it doesn’t put nearly as much heat into the air as my Turbocharged RZR does. Less heat in, less heat needs to come out! The intercooler can go just about anywhere, and still work very well. Oh yeah, one other thing. Since there is a fan constantly pulling air through the intercooler, it is always efficient, not just when the vehicle is going above a certain speed.
It appears that everything will be well shielded from mud & debris. I’m guessing that they will have some sort of shield that bolts in place, similar to Brutus that separates the Supercharger from the splatter area around the tire.
More pictures to come! I’m getting REALLY excited about this project, can you tell?
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The new fuel system includes a high capacity in-tank fuel pump, and converts it from a returnless fuel system to one that returns unused fuel to the tank. It incorporates a rising rate fuel pressure regulator. When no boost is present, the fuel system acts like it did in stock form. (Stock fuel pressure to the injectors) When the FPR detects boost, it raises and lowers fuel pressure as needed to regulate the proper amount of fuel through the injectors. It will also have an electronic fuel controller, for fine tuning.
Test fit of the new Supercharger bracket.
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Update pictures of the final supercharger bracket & modified engine cover.
Here is a picture of the reprogrammed ECM with a custom tune to control ignition timing under boost. I don’t know of anyone else that does that with their forced induction systems. This tune adds a few hundred more RPMs as well as more protection for the engine. This is one extra safety measure that prevents engine damage, and makes it so I don’t need to drop the compression.
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SWEET! I cant wait to see the final product in action!
Thanks for the update.
www.ruthlessmotorsports.com
Shop:801.737.6400
Cell:435.851.3637
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That's awesome Dave. When your finished with it, how about picking up my RZR and having them put one on it. Actually, if the time was right, I'd just buy theirs. That ride was unreal.
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They are getting final component placement really close to finished.
This will be the final placement of the muffler. (The stock muffler will be used on the production kits; it will just be relocated to the driver’s side. This is not the final exhaust pipe from the muffler forward, but it gives an idea of placement.
The air intake on Brutus will be a cold air snorkel, I’m not sure of exactly how the production kit will end up. (Because of the bed)
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Getting close…
The new exhaust and intake snorkel needs to be thermal barrier coated, and more heat shielding added.
The instrumentation needs to be installed so we can monitor EVERYTHING.
The intercooler fan needs to be installed, and the clutching done. It needs ALLOT of weight in the clutching.
They are working on the finishing touches for the revised ECM, so the video is with stock settings.
I begged them to take it out in the parking lot so we could see it run in rough form.
They obliged, but warned me that it is no where near as quick as it will be once it’s done!
Heath could only give it part throttle because it was violently smacking the rev limiter if it was pushed anywhere near full.
Until they finish the first round of testing, they have limited it to about 4# of boost.
This thing is DAMN impressive for 4# of boost & part throttle!
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