Rhino Performance - Pirate4x4.Com : 4x4 and Off-Road Forum

TheTonka · 03-28-2008, 10:44 AM

Thinking about trying to get some more power out of the wife's Rhino. Already have a CDI box on it and that helped a bunch compared to the POS CDI it had. I have read that with the CDI boxes they can over rev so I want to do a tach first just to keep an eye on things.

Thinking exhaust first with upgrades to clutch and rejetting.

Anyone got some advice? I know next to nothing about hopping these guys up and don't even know where to start. Looking for better acceleration, a bit more high speed, and just more all around response and power. Not looking to go too far, and don't want to sacrifice reliability too much.

Thanks

sixtringr · 03-31-2008, 12:47 PM

I put a CDI in my 07 660 Rhino and it made it real clear that the next mod is probably a sheave/belt/exaust tip when I can afford it. I was thinking one of these- http://www.hunterworks.com/inc/sdetail/18364 The CDI has a cool feature that I put in the glove box called a "brother-in-Law switch. It really limits the motor and would be good for when the kids ride it.

TheTonka · 03-31-2008, 12:55 PM

Looks good. I like the idea of controlling the RPM properly. This should reduce the chance of over revving if adjusted right. I have seen spring kits for the clutches, but I know nothing about CVT transmissions other than the conceptual theory.

sixtringr · 03-31-2008, 01:43 PM

Tonka,
If you check the Hunterworks website you will find a video on changing the sheave and belt that is very good and would be helpful to view. Take it easy.
Mike

TheTonka · 03-31-2008, 01:58 PM

Saw that, can't get it at work.

sammy virgin · 03-31-2008, 06:06 PM

You should check out Modquad.No motor mods but a lot of bling bling stuff.

Crowdog · 04-17-2008, 07:56 PM

Most Rhino exhaust just makes more noise and not much more power....

RoCkSkuLLz · 05-17-2008, 08:46 AM

Try the ALBA Exhaust if your going to get one. More money but its a very well put together kit. More Info

As for more speed. Get a machined clutch sheave from KMS. With the CDI you should be able to get it up to the 50mph range.

Bbrac · 05-22-2008, 09:46 PM

Machined primary sheaves generally give you a slightly lower initial gear ratio and slightly higher final gear ratio, but everything in between is the same. If you get a clutch kit, lots can be changed depending on use of the rhino. Centrifugal clutch springs change engagement rpm, weighted rollers change shift rpm in conjunction with secondary springs to change backshifting and belt pressure. So, be specific in your driving needs when ordering a clutch kit. There is also a snowmobile clutch conversion kit that is supposed to be the new hot setup, but expensive.

Dunechaser · 05-28-2008, 08:35 AM

This is what I've done.

I replaced the intake tube, the one connecting the air box to the center console with a RAIS tube to give it more air to breathe. Go here for instructions http://www.yamaharhinos.net/Carb/yrnraispdf.pdf

Installed a high flow K&N air filter

I removed the end cap to the pipe and installed a high flow end cap.

Rejetted the carb

Installed Hunterworks Tri-Fire CDI

Installed Hunterworks Clutch Sheave

After all these mods I can do about 51 on the street before I run out of room.

Gained just a tad on takeoff but not much to brag about.

Was it all worth it? If I had to do it all over again, I would instead put the money toward a good pair of shocks.

For what I do, there isnt much need for top end. Live and learn

TheTonka · 05-28-2008, 09:10 AM

Quote:

Originally Posted by Dunechaser

This is what I've done.

I replaced the intake tube, the one connecting the air box to the center console with a RAIS tube to give it more air to breathe. Go here for instructions http://www.yamaharhinos.net/Carb/yrnraispdf.pdf

Installed a high flow K&N air filter

I removed the end cap to the pipe and installed a high flow end cap.

Rejetted the carb

Installed Hunterworks Tri-Fire CDI

Installed Hunterworks Clutch Sheave

After all these mods I can do about 51 on the street before I run out of room.

Gained just a tad on takeoff but not much to brag about.

Was it all worth it? If I had to do it all over again, I would instead put the money toward a good pair of shocks.

For what I do, there isnt much need for top end. Live and learn

Power tube and jetting are good ideas, I have been thinking of getting a jetting kit. I have a high flow filter, not a K&N, don't remember whose the shop who did my upgrades threw it in for free. Got the new CDI from Poly, and am VERY HAPPY. I may do a high flow exhaust, but I am not convinced the sheeve is a necessity. I agree on the shocks. Right now I would rather spend some time actually using it, but work, house, yard, and brewing seem to get in the way. Plus I have a long list of todos for the big hauler as well.

There just isn't enough hours in the day, but luckily there is enough hours in the day for a few beers.

03-28-2008, 10:44 AM	#1 (permalink)
TheTonka Registered User Join Date: Nov 2001 Member # 8294 Location: In a house with a brewery. Posts: 2,065	Rhino Performance Thinking about trying to get some more power out of the wife's Rhino. Already have a CDI box on it and that helped a bunch compared to the POS CDI it had. I have read that with the CDI boxes they can over rev so I want to do a tach first just to keep an eye on things. Thinking exhaust first with upgrades to clutch and rejetting. Anyone got some advice? I know next to nothing about hopping these guys up and don't even know where to start. Looking for better acceleration, a bit more high speed, and just more all around response and power. Not looking to go too far, and don't want to sacrifice reliability too much. Thanks __________________ If life gives you lemons, throw them at the stupid people.

03-31-2008, 12:47 PM	#2 (permalink)
sixtringr Registered User Join Date: Aug 2007 Member # 97035 Location: Sacramento Posts: 7	I put a CDI in my 07 660 Rhino and it made it real clear that the next mod is probably a sheave/belt/exaust tip when I can afford it. I was thinking one of these- http://www.hunterworks.com/inc/sdetail/18364 The CDI has a cool feature that I put in the glove box called a "brother-in-Law switch. It really limits the motor and would be good for when the kids ride it. __________________ [FONT="Times New Roman"][SIZE="3"]What you had matters not-you must do with what you've got.[/SIZE][/FONT]

03-31-2008, 12:55 PM	#3 (permalink)
TheTonka Registered User Join Date: Nov 2001 Member # 8294 Location: In a house with a brewery. Posts: 2,065	Looks good. I like the idea of controlling the RPM properly. This should reduce the chance of over revving if adjusted right. I have seen spring kits for the clutches, but I know nothing about CVT transmissions other than the conceptual theory. __________________ If life gives you lemons, throw them at the stupid people.

03-31-2008, 01:58 PM	#5 (permalink)
TheTonka Registered User Join Date: Nov 2001 Member # 8294 Location: In a house with a brewery. Posts: 2,065	Saw that, can't get it at work. __________________ If life gives you lemons, throw them at the stupid people.

03-31-2008, 06:06 PM	#6 (permalink)
sammy virgin Registered User Join Date: Mar 2008 Member # 111490 Location: lebanon oregon Posts: 148	You should check out Modquad.No motor mods but a lot of bling bling stuff. __________________ 87 sammy,toyota's with 4.88 rear elocker front detroit, yj's, 01 vitara 2.0l

03-31-2008, 01:43 PM	#4 (permalink)
sixtringr Registered User Join Date: Aug 2007 Member # 97035 Location: Sacramento Posts: 7	Tonka, If you check the Hunterworks website you will find a video on changing the sheave and belt that is very good and would be helpful to view. Take it easy. Mike

04-17-2008, 07:56 PM	#7 (permalink)
Crowdog Registered User Join Date: Jan 2001 Member # 2787 Location: Shingle Springs, CA Posts: 2,422	Most Rhino exhaust just makes more noise and not much more power.... __________________ UTVGuide.net

05-17-2008, 08:46 AM	#8 (permalink)
RoCkSkuLLz Registered User Join Date: Jul 2001 Member # 5809 Location: CA Posts: 1,384	Try the ALBA Exhaust if your going to get one. More money but its a very well put together kit. More Info As for more speed. Get a machined clutch sheave from KMS. With the CDI you should be able to get it up to the 50mph range. Last edited by RoCkSkuLLz; 05-17-2008 at 08:47 AM.

05-22-2008, 09:46 PM	#9 (permalink)
Bbrac Registered User Join Date: Jan 2003 Member # 16371 Location: So Oregon Posts: 50	Machined primary sheaves generally give you a slightly lower initial gear ratio and slightly higher final gear ratio, but everything in between is the same. If you get a clutch kit, lots can be changed depending on use of the rhino. Centrifugal clutch springs change engagement rpm, weighted rollers change shift rpm in conjunction with secondary springs to change backshifting and belt pressure. So, be specific in your driving needs when ordering a clutch kit. There is also a snowmobile clutch conversion kit that is supposed to be the new hot setup, but expensive.

05-28-2008, 08:35 AM	#10 (permalink)
Dunechaser Registered User Join Date: May 2008 Member # 113916 Location: Visalia, Ca Posts: 27	This is what I've done. I replaced the intake tube, the one connecting the air box to the center console with a RAIS tube to give it more air to breathe. Go here for instructions http://www.yamaharhinos.net/Carb/yrnraispdf.pdf Installed a high flow K&N air filter I removed the end cap to the pipe and installed a high flow end cap. Rejetted the carb Installed Hunterworks Tri-Fire CDI Installed Hunterworks Clutch Sheave After all these mods I can do about 51 on the street before I run out of room. Gained just a tad on takeoff but not much to brag about. Was it all worth it? If I had to do it all over again, I would instead put the money toward a good pair of shocks. For what I do, there isnt much need for top end. Live and learn __________________ www.dunechasers.com

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