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12K views 40 replies 18 participants last post by  DaytonaATV  
#1 ·
Looking for anything on a turbo for RZR...Dont like dragonfires setup..I want intercooler also..
 
#2 ·
Thunderhawk announces turbo system for Polaris RZR
July 31, 2007

Thunderhawk Performance has been developing an intercooled turbocharger system for the Polaris Ranger RZR since it’s introduction. The Thunderhawk RZR turbo system is a complete turbo system including all necessary fuel system and ECU upgrades. This turbo system is currently undergoing extensive dyno and field testing in preparation for production. The Thunderhawk RZR turbo system features state-of-the-art design and construction as used in the finest automotive turbocharger systems.

Here is a brief overview of the Thunderhawk RZR turbo system. Thunderhawk Performance has selected a properly sized turbocharger matched to the airflow requirements of the Polaris RZR's 800 EFI engine, thereby reducing turbo lag. A durable bar and plate intercooler is included to reduce inlet charge temperatures to within 30° of ambient air temperature, which eliminates the need to run race gas. Fuel system and ECU upgrades are included to guarantee proper fuel delivery for reliable operation under all operating conditions. Exhaust system components are included to optimize exhaust flow for this turbocharged application. High flow air filtration and inlet ducting have been designed to eliminate any potential dust or water ingestion by the engine.

Thunderhawk Performance has designed this turbo system for optimum performance and reliability under all operating conditions, from 100+ degree days at the dunes to a cool day in the hills playing in the mud. Clutch upgrades will also be available to optimize the performance of the turbo RZR.

We wish that we had this system available for sale today, however designing, testing and manufacturing a complete, reliable turbocharger system is a very time consuming undertaking. With 15 years experience in automotive turbocharger systems design and fuel injection tuning, most notably including the Lingenfelter twin-turbo Corvette, you will find that Thunderhawk Performance has designed a turbo system for the Polaris Ranger RZR that is second to none. Additional product information will be released over the next few weeks.

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#5 ·
I think Thunderhauk is the system to wait for. I've been fallowing them and talked talked with them and they understand the need to create a complete reliable system with little to no turbo lag. Every system I've herd about for the rhino will either destroy your engine and or have terrible lag. To the point where you'd have to stab the throttle seconds before you'd need it.
 
#6 ·
There is the AeroCharger system also. It has the quickest spool up time, oil is self contained and has everything you need in the kit including the cooler and a clutch kit. We at Daytona ATV are going to install one on a RZR next week. We are installing it with a aluminum box around it so it can go under water for mud bogs. I will start a thread on the results with in a couple of weeks. daytonaatv.com
 
#7 ·
While most agree the Aerocharger system seems to be the nicest kit available at the moment... it's $5500!!! Plus, it will only be a chain reaction of upgrades required as people start breaking the factory drivetrain components left and right with all that extra power.

Who am I kidding... I still want it. :lol:
 
#13 ·
I have a MCX on my RZR and love it. I use it trail riding and racing. It is very user friendly without overheating problems for general riding. When you want to turn up the boost and bend a crank, it will put out what you need. At 14.5 lbs. of boost, it doesn't hook up with 2 guys in it. I know from experience. Looking for a billet crank as an upgrade! The only thing I would request to change is the air tube and air cleaner system. The intercooler really doesn't take up much space, but the tube adds to it. BTW, you really don't feel any turbo lag with the propperly tuned clutch system.

You will not be dissappointed with MCXpress.
 
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#16 ·
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#25 ·
Exactly, that is why a head shim is not mandatory with the BD kit. You will still have more horse power than stock by lowering compression with boost. The customer needs to decide how and what they want to run, this is why we offer different options, or you could just run race fuel at low elevations. Thanks Diann
 
#26 ·
It has to do with detenation. Lower compression to bring it back up with a force of air/fuel and not relying on the engine to suck it in. You can utilize more boost with a cooler air/fuel supply and that is where the intercooler comes in. More things to consider cam overlap, sharp points in the combustion chamber, etc all can help or hurt the air/fuel intake to lead to detenation which will break piston rings and or piston ring glands. Most automotive supercharged and turbo engines use 7.5 upto 8.5:1 compression ratio. The RZR is over 9.0:1 I think. So, you lower to still use premium fuel and not have run race fuel. You can safely run 10 to 11 lbs. of boost on premium fuel with the MCX. We do this with auto engines too. The weak link is the crank on the RZR. There is no center support bearing and the crank flexes over 7000 RPM.
 
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#27 · (Edited)
Yep you are right it is about deto. I give details and yet keep it simple, we are located in Idaho Falls, ID around 4700 ft elevation. Our local customers and surrounding areas dont need to run a head shim or lower compression, that is why it is not mandatory, it would be charging for something they dont need, but is a option for those who do. Think of it this way, it is the difference between Carroll Shelby and Ferrari, both fast as h*ll, sure one has more bling, too bad you cant afford gas. Thanks Diann :popcorn:
 
#35 ·
You can go bigger with any kit mcx's bbk is made by power works not mcx the crank is from crank works. You can buy the exact same kit from Ricochet Racing it was even a little less money then mcx, but its your call. I have it with an Aerocharger but I didnt do the crank or the head work. I recently was in glamis and it ran good but my clutching was way off still set up for my eleveion (5500 feet) but it ran good and I was able to get 56mph up olds and thats only 10 mph less then the 170 hp weber. Now I have the ported head and +2 valves so it can move more air so Im excited to see what itll do now.
 
#38 ·
How heavy are your weight ? I need to get set up my clutch too with BB, but really don't have to much idea where to start, if I need different springs or more weight on base or tip. Clutching is still somehow big mystery to me. :)
milos
 
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