JOYNER U.T.V.s & BUGGIES

NZ UTVS, NZ UTV, NZUTV4X4, JOYNER UTVS & BUGGIES, NEW ZEALAND JOYNER UTVS

IS YOUR UTV LIKE LITTLE BOYS CHOPPING WOOD? HAVE A LOOK AT THE CHART BELOW.
I wouldn't put a car engine into a truck so why would you put a pushrod Motorbike engine into a UTV? Because it's the Motorbike manufacturers that are the main players in the UTV industry and they are using the only technology they know.

UTV       Displacement   Engine Type Stroke  No.of Valves   Fuel Injected  No. of Pistons  Fuel Type  Horse Power Transmission      Automotive or Not

Artic Cat
Prowler       695cc          SOHC        4                  4                      Yes                1                 Petrol            ?            Auto/Rubber Belt  Motorbike 
700 XTC

Club Cadet  748cc           OHV         4                  4                      Yes                 2                Petrol           31hp        Auto/Rubber Belt  Motorbike 
Volunteer   

John Deere
Gator XUV  617cc          OHV          4                  4                      Yes                 2                Petrol           23hp        Auto/Rubber Belt  Motorbike 
620i  

John Deere
Gator XUV  854cc          OHV          4                  6                    Indirect              3                Diesel          24.6hp      Auto/Rubber Belt  Automotive 
850-D                                                                                       Injected 

Kawasaki     953cc          OHV          4                  6                       Yes                 3               Diesel             ?            KAPS                 Automotive 
Mule 4010D

Kawasaki     401cc          OHV          4                  4                  Carburetor            1               Petrol              ?           CVT/Belt              Motorbike 
Mule 2010

Kawasaki     749cc         SOHV         4                  8                  Carburetor            2               Petrol             27hp        CVT/Belt             Motorbike 
Teryx 750

Kawasaki     749cc         SOHV         4                  8                       Yes                2               Petrol               ?           CVT/Belt             Motorbike 
Teryx 750 FI 

Polaris
Ranger          683cc         OHV           4                  4                        Yes              2                Petrol             40hp      CVT/Belt            Motorbike 
700XP 

Polaris          760cc         OHV           4                  4                        Yes              2                Petrol             55hp       PVT/Belt            Motorbike 
RZR 800  

Yamaha        686cc         SOHC          4                  4                        Yes              1                Petrol             22hp      CTV/Belt            Motorbike 
Rhino 700

Joyner          644cc          OHV            4                 4                 Carburetor          2               Petrol             27.6hp   4/Speed Manual   Automotive 
Commando  

Joyner          812cc         DOHC          4                 12                      Yes              3                Petrol             58hp      5/Speed Manual   Automotive 
Renegade   

Joyner         1083cc        DOHC         4                 16                    Yes              4               Petrol             86hp   5/Speed Manual   Automotive 
Trooper      


The break down of what hot and what is not for each category is;
Displacement: Bigger is better  1st   2nd   3rd   Last 
Engine Type:   DOHC (double over head cam) is far better 1st  SOHC(single over head cam) is good 2nd OHV(over head valve) is last 
Stroke: All these UTVs are 4 stroke   A 2 stroke UTV would not be hot at all.  1st 
No. of valves: More is better & more efficient  to spread engine load  1st   2nd   3rd   Last 
Fuel Injected: EFI is more efficient for cold starts and high altitude driving. Carburetor is fine in most saturations. 1st   2nd 
No.of Pistons: More is better to spread engine load   1st   2nd   3rd   Last 
Fuel Type: Petrol or Diesel both have their pros and cons. Both good.  1st 
Horse Power: More is better for every reason, including power & economy  1st   2nd   3rd   Last 
Transmission: Manual is better & safer for total control. CTV/Belt is dangerous going up & down steep hills.  1st   Last 
Automotive or Not: UTVs are automotive machines not Motorbikes, so why put Motorbikes in an Automotive machine?  1st   Last 

Why are Joyner UTVs so much better than the competition? Because the competition  use little boys to chop the wood!
                                                                                  Find out what I mean by that below.
            The first clue is the specifications. Lets break down the Trooper T2 4x4 from the recent Side x Side shoot out, against other 4x4 two seater UTVs.
Joyner Trooper T2 4x4 is the longest at 127": That stops you from rolling over nose to tail going up a steep hill and gives you more stability coming back down. It also helps with less jarring on the body and not so much spinal tap. 2nd is the Joyner Renegade at 125" and 3rd is the Kawasaki Mule 3010 Trans at 124.5". This Kawasaki model is a two seater that can transfer into a four seater and because it's not a true four seater, I will include it with the other two seaters. A true four seater UTV like the Joyner Trooper T4 4X4 is 160" long and there is plenty of room in the back to stretch your legs out.
Joyner Trooper T2 4x4 is the widest at 65": That stops you from rolling over sideways and more stability on a slope. This also helps with less jarring on the body and in turn, less wear and tear on the vehicle. 2nd is the Arctic Cat Prowler at 61.3" and 3rd equal is the Joyner Renegade and the Polaris Ranger XP at 60". Of note the Polaris RZR came in last at 50". This size has an advantage for narrow tracks.
Joyner Trooper T2 4x4 is the widest Wheelbase at 98": A by-product of having the widest UTV. A long length and wider wheelbase equals better footing. 2nd was the Kawasaki Mule 3010 Trans at 86" and 3rd was the Joyner Renegade at 81.75".
Joyner Trooper T2 4x4 is the lowest overall height at 69": Team that up with the length and width to get a very stable vehicle. 1st equal was the Polaris RZR at 69" and 3rd was the Joyner Renegade at 72".
Joyner Trooper T2 4x4 is the highest ground clearance at 13": Having less overall height than the competition doesn't mean compromising ground clearance. With good engineering the Trooper gets the best of both worlds. The high ground clearance gives you less interference with objects hitting the undercarriage. 2nd was the Arctic Cat Prowler at 12.5" and 3rd was the Yamaha Rhino at 12.1". 
Joyner Trooper T2 4x4 has the greatest towing capacity at 2000lbs: No surprise with the specs above and the powerful 1100cc engine. 1st equal was the Polaris Ranger XP at  2000lbs and 3rd equal was the Joyner Renegade, Arctic Cat Prowler and the Polaris RZR at 1500lbs. It has to be said that with the Arctic Cat Prowler bending and braking when tested under this towing capacity, it is miss-leading again, and if you own a RZR, in the shootout they said it is a different animal when loaded with the rear suspension way too soft. The same person who wrote that said when the Renegade was loaded with the same weight," the Renegade felt like it was where it belonged" and with towing it was " Right off the bat when hooked up I liked that it offered a 12v adaptor for the lights".
Joyner Trooper T2 4x4 has the greatest fuel capacity at 13 gal (30L): With the large fuel tank and fuel efficient DOHC engine you can go further for less fuel used. 2nd was the Joyner Renegade at 10 gal and 3rd was the Polaris XP at 9 gal.
Joyner Trooper T2 4x4 has the Largest engine displacement of any UTV: Arctic Cat are claiming that their new ProwlerXTZ 1000 which is only 950cc and a rumoured 70hp is going to be the biggest with their Motorbike engine. Clearly they have not read the Joyner's spec sheet yet. They were part of the same Side x Side shootout in the States recently with a 700XTX and they would of received the manufacturers specifications results so I guess they must be blind. The Trooper's engine which is out of a car is 1083cc and is 86hp. In the shootout the Kawasaki Mule 3010 Trans (Diesel) was 2nd with 953cc(did I see that right, still 3cc above the Prowler 1000 whoops I mean Prowler 950cc) and 3rd is the good old John Deere Gator 850D with 854cc.
Joyner Trooper T2 4x4 has the greatest overall speed: Polaris claims this title with a top speed of 55 mph. Now that's not bad for a 760cc Pushrod Motorbike engine with 55hp and I don't doubt them. I think Polaris has taken up Arctic Cat's policy, " if you can't beat them, turn a blind eye". The Joyner however owns this title as well with 65 mph. 2nd is the Joyner Renegade with 60mph and 3rd yes a distant 3rd is a Polaris RZR at 55mph.
 
I haven't mentioned suspension or brakes because of the different configurations used for bigger and smaller vehicles, however it would be fair to say that if I did the Trooper with its front Double A-Arms with 10" of travel and the Rear Boxed Trailing Arm with 12" of travel is the clear winner again. The Troopers big Hydraulic Disc Brakes with a Dual Calliper wins hands down here too. It could be argued that the Troopers extra weight and speed is the reason you need big brakes and beefy suspension in the first place so I'll leave it out. Light, slow UTVs wont need performance parts like these.

Why is Joyner UTVs so much better than the competition?
The second clue is the engines. Would you send a boy out to do a mans job? No. Then why put a Motorbike engine into a UTV? The short answer is because it is mainly Motorbike manufactures pushing the UTV industry along. Sooner or later a company like Joyner were going to figure it out and put a automotive engine and transmission into a UTV and leave the competition behind. Below is a break down of the 10 4X4 UTV engines that were in the Sidexside shoot out & one that was released soon after the shoot out. The Tomcar TM2 is not included here because it is only 2wd and not a 4wd UTV.
Arctic Cat Prowler 700XTX: 695cc Single Over Head Cam, 4-stroke, 4- valve, Fuel Injected with one piston. Arctic Cat Petrol. I gave up trying to find out the hp.
Cub Cadet Volunteer: 748cc V-Twin, Over Head Valve, 4-stroke, 4-valve Fuel Injected with two pistons.Kohler Aegis Petrol. 31hp
John Deere Gator XUV 620i: 617cc, Over Head Valve, 4-stroke, 4-valve Fuel Injected with two pistons. Kawasaki Petrol. 23hp
John Deere Gator XUV 850D: 854cc, Over Head Valve, 4-cycle, 6-valve, Indirect Injection with 3 pistons, Yammer Diesel. 24.6hp
Kawasaki Mule 3010 Trans: 953cc, Over Head Valve, 4-stroke, 6-valve, Fuel Injection with 3 pistons, Kawasaki Diesel. I gave up trying to find the hp.
Polaris Ranger 700 XP: 683cc, Over Head Valve, 4-stroke, 4-valve, Fuel Injection with two pistons, Polaris Petrol. 40hp
Polaris RZR 800: 760cc, Over Head Valve,  4-stroke, 4-valve, Fuel Injection with two pistons. Polaris Petrol. 55hp
Yamaha Rhino 700: 686cc, Single Over Head Cam, 4-stroke, 4-valve, Fuel Injection with one piston. Yamaha Petrol 22hp
Joyner Renegade 800: 812cc, Double Over Head Cam (Twin Cam), 4-stroke, 12-valve, Fuel Injection with three pistons. Chery Petrol 58hp.
Joyner Trooper 1100: 1083cc, Double Over Head Cam (Twin Cam), 4-stroke, 16-valve, Fuel Injection with four pistons. Chery Petrol 86hp.
The Kawasaki Teryx was released after the sidexside shootout but just for interest sake here is their specs.
Kawasaki Teryx 750: 749cc, Single Over Head Cam, 4 stroke, 8-valve, Carburettor with two pistons. Kawasaki Petrol. 27hp
Some of these top of the range UTV engines don't rate very high in my book so for interest sake below is the entry level Joyner UTV to compare with.
Joyner Commando 650 C2: 644cc,Over Head Valve, 4 stroke,  4-valve, Carburettor with two pistons, Isuzu Petrol. 26hp
                                                 RED MEANS MEN AT WORK   PINK MEANS STINK or LITTLE BOYS CHOPPING
                                                      BLUE MEANS LATEST TECHNOLOGY   GREEN MEANS OLD SCHOOL

What does these engine specifications mean?
I'll break it down further to show which motor has a higher spec than the others. The bigger the Displacement the more power that's available on tap.
The three different engine types shown here start from a OHV which is very much yesterdays technology, however it has been successfully used for decades because in-part, it is a very simple design. The SOHC is a step up from the old Pushrod OHV engine with a single over head cam working above the valves allowing more valves per Piston and easier to achieve perfect timing @ high revs. The DOHC or Double Overhead Cam is a step up from the SOHC and is the technology used in modern cars. With Twin Cams working together above the Valves, it makes it possible to have multiple valves per cylinder and the result is the engine breaths better so it can produce more horsepower's with smaller engine volume. The only downside of DOHC engines is, because they are so much more complex to build, they cost a lot more money to produce.
A 4 Stroke engine is more efficient than a 2 Stroke engine.
The number of Valves an engine has also increases the efficiency of the power plant. By increasing the number of valves per cylinder like the Trooper's 4 valves per cylinder engine has an obvious advantage over an engine that has only got 4 valves for all cylinders .
Fuel injection has been around for a long time and has an advantage over a Carburettor. 
The more Pistons you have the more you spread the load. For e.g.. how many revs do you think an engine with one piston is doing at lets say 30mph compared to an engine that has got four pistons? It gets even better if you have a Drivetrain with a five speed gearbox to take the pressure off as opposed to a one cylinder engine with an auto CVT set-up or similar. The way I see it, is like comparing little boys (the 4 valves & piston) to men (16 valves & 4 pistons) chopping wood. Who is going to burn out first?
The Fuel type has pros and cons for both Petrol and Diesel which pretty much cancel each other out, so I'll stick to the engines configurations.
Horse power speaks for it self. More is better, end of.
The Drivetrain comes down to preference however which is more efficient than the other? A manual wins for me because there is less strain on the engine with the correct gear selected and a manual is far more fuel efficient than an auto.