Join Date: Dec 2007
Location: West Valley City Utah
Right now the cheapest thing for the 450 that will give a little more speed would be a sheave. Which is about $200. I got my from utv crap. They sell new ones and used ones the used ones are cheaper. But most of the stuff of the you can do for it will cost more than your $300 limit. Here is a list of what I think help and works.
1. high flow air filter (may need to rejet carb.)
2. exhaust ( will this you wil need to rejet)
Just so you know my rhino is still under warranty also. But you should be able to get the exhaust and the carb jet kit from your dealer then that you should be ok on the warranty. You can put the high flow air filter with no problems with your warranty.
But just so you know this just gives some more top end speed. The only way you more hp is to do internal engine work. But the stuff that I listed will help it go faster.
Pulling the fan motor off like you asked about I don't know if that will help or not. I have only told of the stuff I have done and know that works. But maybe some one else knows about taking that fan off on the 450.
2008 Rhino 450
2 Checker Auto 7" HID, 2 PIAA 510 Lights, 2 HELLA 500'S, & Light Mounts, Venom 5000X Winch, Yamaha Digital Dash, Stock Tires (trails), Stak-Trak Extremes & Buffs on ITP Delta Steels, 1.5 Spacers All Four Corners from Rhino Parts & Performance, Crow 3 inch Harness from UTV Crap, BRP stage 1 performance kit, Warn full belly skid from 4wheelparts, sheave from UTV Crap, LSR +3 MTS, DG Rhino 4 seat cage with roof, Twisted Stitch rear bench