Recent content by streetracer_258

  1. streetracer_258

    Differential Dilemma

    The normal way would be to assembly the diff and inspect tooth contact. Pull apart insert shim rebuild and re-check alignment. Repeat until you are happy or its within specification. My bro works for a guy who rebuilds old F1 gearboxes and he can tell you at a glance what size shims he needs lol.
  2. streetracer_258

    w58 extension housing

    Die casting is a Permanent Mold process.
  3. streetracer_258

    w58 extension housing

    No problem :bigthumb:
  4. streetracer_258

    w58 extension housing

    Another picture showing how a part looks from a mould due to heat checking. Looks very similar to "that guy" third photo to me.
  5. streetracer_258

    w58 extension housing

    My guess would be that the imperfections on the part are a result of wear to the die as shown below.
  6. streetracer_258

    w58 extension housing

    Apart from the imperfections the finish seems far to smooth to be sand cast.
  7. streetracer_258

    w58 extension housing

    I think they are die cast not sand cast, but yeah just surface imperfections, mine is the same.
  8. streetracer_258

    polished pistons?

    Firstly by polishing the surface of the piston to a mirror finish you will reduce the surface area of the piston top by remove all the tiny dimples left in the surface after casting. The effect of this is to improve the thermal efficiency of the combustion by reducing surface area(ever so...
  9. streetracer_258

    loss of control x2

    Sorry to here the bad news Although all seems well i would pull the wheels off and measure between the front and rear hub centres on each side, jus to make sure nothins moved.
  10. streetracer_258

    Supras on fire.

    I pulled all the wiring out my car the other day and noticed the wiring for the rear lights in the boot had all burnt and fused together. Everything still worked fine tho and i only noticed because i stripped all the insulation tape off :icon_eek:
  11. streetracer_258

    rear wing height

    Hey taka21, i think that wing will be fine for what you are after. It will definatly have some effect and after all your not chasing every tenth of a second. You could always attach some bits of string across the wing, then drive it along and set up a camera to record the results to see how air...
  12. streetracer_258

    rear wing height

    Oh and the idea of a high wing is to move it out of turbulent air not into it. I think you need to do some research.:3d_frown:
  13. streetracer_258

    rear wing height

    I have a degree in motorsport and powertrain engineering and have a good grasp of aerodynamics, vehicle dynamics and CFD so please explain your reasoning behind your arguement. Those high wings were banned because the struts kept failing, i'm not saying they are safe just saying that...
  14. streetracer_258

    rear wing height

    Huh? There you go lol.
  15. streetracer_258

    rear wing height

    Basically to be effective the wing needs to sit in clean air above the turbulent air created by the drop in height from the roof to the boot. Depends if you are racing it because there will be requlations on how high it can be. If not then it depends if you like how it will look high up. For...