Jump to content


  • Content Count

  • Joined

  • Last visited

About yz450fcranker

  • Rank
    TT Bronze Member

Contact Methods

  • MSN

Profile Information

  • Location
  • Interests
    fishing camping four wheeling and riding
  1. all these calculations for an intercooler? well at least different intercoolers make a difference depending on quality
  2. Engine CFM times pressure ratio. Displacement(ci)*rpm*0.5*Volumetric Efficiency (VE) / 1728 = CFM You are multiplying by .5 due to the fact it is a 4 stroke, and dividing by 1728 to convert cubic feet to cubic cc's. I have always assumed the miatas VE at 85%. Now you calculate at each RPM desired your CFM. Oh pressure ratio is 14.7 + boost(psi) / 14.7 So if you happen to be running one bar of boost, or 14.7 psi, it goes like this.. 14.7 + 14.7 / 14.7 = 2 Then multiply 2 by whatever cfm number you got in your nifty CFM equation and that is your cfm for that boost and that rpm. 78cfm+boost= more than 78cfm
  3. i just pulled a number from the feeling of how a 450 works plus hes got a turbo on there so 78+turbo is about 100
  4. http://justgastanks....products_id=232 Yamaha YZ450F IMS Gas Tank click the dot in the middle for 10-12 its smaller than the clarks and its natural clear
  5. http://www.ebay.com/itm/Yamaha-YZ450F-Oversize-Gas-Tank-2010-2012-Fuel-Cell-uses-Stock-OEM-Petcock-Valve-/270931065024?pt=Motorcycles_Parts_Accessories&hash=item3f14bff8c0&vxp=mtr#ht_1664wt_1163
  6. take the steering stem assembly apart add a bunch of grease and tighten it right
  7. http://www.proracing.co.uk/xc_lighting_yz.htm maybe this stator light kit works
  8. get a new hub for the wheel to accomodate the 09 axle
  9. replace steering stem bearings to the newer steering stem bearings if you have steering stem bearing problems the newer ones that replace the old style come with a seal on the upper bearing to water proof it
  10. http://www.thumpertalk.com/topic/808582-yamaha-s1-oil/ grayracer kyb 01 fork oil is s1 yamaha fork oil i use it
  11. motorex racing fork oil is pretty close to s1 yamaha suspension fluid
  12. http://www.peterverd...uspension_Fluid read the viscosity sheet i think Kyb 01m IS yamaha S1 when compared side to side
  13. use kyb fork oil http://www.motocrossdirect.com/Kayaba-01M-FRONT-FORK-OIL-detail.htm?productId=8145703
  • Create New...