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06-04-2012, 01:52 AM
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#1 (permalink) |
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Member
Join Date: Apr 2012
Location: deary idaho
Posts: 33
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478cc big bore kit "ice cube" ???'s
Is it reliable?
Will i need do do other mods like: Cams? Jets? Exhaust? i currently have stock with baffle out. can i use the stock crank and rod? it is a 2005, all stock. the reason for big bore kit is: timing chain wore out, cam gears worn, skipped teath, timing is completly off and its definatly time to rebuild. |
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06-04-2012, 08:25 AM
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#2 (permalink) |
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Senior Member
Join Date: May 2010
Location: CT
Posts: 507
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not sure about the kit but you dont need to have an exhaust etc but you arent going to benefit any from keeping it stock with a big bore. should atleast get a used full system or something and stock cams. and basically if your going to do a rebuild id replace everything so you dont end up wrecking the bottom end or cylinder etc.
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2006 yfz 450  35 leak, 165 main, 45 pilot12.5:1 piston trinity exhaust with shorty,hot rods crank(i believe),ported head,oversized valves,cams,vortex ignition,K&N filter,zip tie carb mod....throttle spring mod,works triple rate front shocks |
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06-04-2012, 09:23 AM
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#3 (permalink) |
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Senior Member
Join Date: Jul 2009
Location: Star, Idaho
Posts: 1,482
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IMO there are better options out there than ice cube. What type of riding do you do?
It may be best to just rebuild it all with OEM parts, put in an 06 crank etc and make it a true 450cc
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 08 YFZ 450 SE Pro MX Duner Outlaw Innovations Team WeeWah Racing |
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06-04-2012, 12:54 PM
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#4 (permalink) |
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Senior Member
 
Join Date: Jul 2004
Location: middle o the mitt michigan
Posts: 1,677
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the aluminum liner in the aluminum cylinder setup of the ice cubes is prone to slipping and causing sealing problems
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Venom/ VooDoo Headwork PORTING: +10% Power increase entire rpm band $275 complete combustion chamber and port mods for carb models $375 HVP epoxy work for Fuel Injected models 10 day turn around / shipping included http://www.yfzcentral.com/forum/32-y...echniques.html  
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06-04-2012, 01:47 PM
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#5 (permalink) | |
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The Anti POPO
Join Date: Jul 2005
Location: northern cali
Posts: 1,201
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Quote:
x2 and if you are looking for gains i would think an decent exhaust and intake would show more gains than the BB with the sotck exhaust an intake idk im just another techless open wallet ask the pros like mixxer an seniortech 
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"tech-less" lol 
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06-04-2012, 06:35 PM
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#7 (permalink) |
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Member
Join Date: Apr 2012
Location: deary idaho
Posts: 33
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i mostly trail ride, but i often race with fiends on a homemade track. im thinking about either getting a true 450 or 468 cause 478 i think is a little over kill. and i am already planning on a complete rebuild. i just wanted to upgrade instead of staying stock and needed to know what all i need. im planing on buying a barker full exhaust system and i have a modified lid and high flow intake.
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06-04-2012, 08:14 PM
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#9 (permalink) | |
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The Anti POPO
Join Date: Jul 2005
Location: northern cali
Posts: 1,201
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Quote:
deff might want to look into a FCI you can still run the air box if thats an issue
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"tech-less" lol
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06-04-2012, 08:24 PM
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#10 (permalink) | |
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Senior Member
Join Date: Mar 2012
Location: Charleston, South Carolina
Posts: 3,259
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Quote:
 See manny. I knew you could do it... x2 I would run ss\sb with a good high comp piston, mild port, stock cams, and above intake with a good pipe..
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Measure twice, Build it once. FIX IT RIGHT THE FIRST TIME |
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06-04-2012, 08:28 PM
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#12 (permalink) |
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Senior Member
Join Date: Mar 2012
Location: Charleston, South Carolina
Posts: 3,259
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Fuel Customs Intake. One of the best... IF flows great and filters like a foam filter would ..... Good that is..
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Measure twice, Build it once. FIX IT RIGHT THE FIRST TIME |
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06-04-2012, 08:30 PM
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#13 (permalink) |
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Member
Join Date: Apr 2012
Location: deary idaho
Posts: 33
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thanks! so would a stock 06 crank work in the 05? and what compesion ratio do u recomend? and doing that would i have as much of a power gain as doing a big bore kit? i really want a jump in power but dont wanna spend money on a new jug.
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06-04-2012, 08:42 PM
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#14 (permalink) |
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Senior Member
Join Date: Mar 2012
Location: Charleston, South Carolina
Posts: 3,259
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The comp is going to depend on your fuel budget. Anything over 12.5 is most likely going to need a 50 50 mix of some good high octane fuel...For the money on a big bore alone you can get a mild port, a good piston, and the fci. I base this off the athena kit witch is one of the best, but there piston design is flawed. There are way better pistons out there.. Yes the 06 crank will fit and it will make your 05 a tru 450.
With a good mild port, pipe, piston, intake and a good tune you would easy be in the 50 range.... I would say for all of this you would be in the area of 1200 to 1500 total.. And your bike would be like new.... A good carb bore from sredrum isnt a bad idea...
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Measure twice, Build it once. FIX IT RIGHT THE FIRST TIME |
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06-04-2012, 09:04 PM
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#16 (permalink) | |
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Senior Member
Join Date: Mar 2012
Location: Charleston, South Carolina
Posts: 3,259
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Quote:
__________________
Measure twice, Build it once. FIX IT RIGHT THE FIRST TIME |
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06-04-2012, 09:16 PM
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#18 (permalink) | |
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Senior Member
Join Date: Mar 2012
Location: Charleston, South Carolina
Posts: 3,259
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Quote:
__________________
Measure twice, Build it once. FIX IT RIGHT THE FIRST TIME |
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