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z-spec

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About z-spec

  • Birthday 01/24/1960

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    http://www.va-motorsport.com

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    HOLLAND

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  1. This system is already used in the 60e by BMW in a F2 formule car and been build by Dr Ing Apfelbeck as a 4 cilider engine , and been called the Apfelbeck engine
  2. we have done quite a few cages for 240/280z here in Netherland , al to meet the FIA regulation , and by using 4130 tubing
  3. John , i found out about the lsd , its a Torsen T2 , the 4.44 is right , you are right about they probably do not have it in the US ,
  4. John , i have got a Subaru 180 diff 4.44 ratio with a gear type ( no plates ) lsd specialist ?? told me that it should be a viscous but its definetly not . I want to use inner CV from Subaru and i made new flanges for the outside to fit 110 diameter Lobro CV without any spacer , i bought the diff but i still not know of witch type and year Subaru it is , Regards Adrian , www.va-motorsport.com
  5. If you need it for defrost the window , you can put a electric heated windscreen in , we made a batch we use for race and rally cars here i EU .
  6. This is the early 1970 one , I wil send some pictures from what we have done til now . This year we gone make some place in your garden , because i hear some rumour that your wife was complaning , but looking for a running car 70/71 with not much work .
  7. the minimum strenght requirment for us is 350 N/mm2 and that is not much , its like CDS 35 (steampipe) , what we use is 25CrMo4 (4130) with a strenght of 650/750 N/mm2
  8. You are right about that , working with inches is much more thinking for us , but 2500 lbs how much is this compared to Newton or Kg ? And what is the actually different between a SCCA legal cage and a FIA legal cage ? I think there must be a way that it meets both regulation . We can work with thinner wall for the tubes we use but we have to make a stress calculation from the cage , and save up to 1/3 of the total weight .
  9. For Classic racing cars we have to use 40 x 2,0mm or 38 (1,5") x 2,5mm (0.25") , and are alowed to fix it to the shell at 6 point by bolting or welding , but there is one exeption , when we fit the V bars into the main hoop we are allowed to use two extra points on the transmission tunnel ,That also means No welding or bolting to the pillars and roofsides .
  10. we have o respect annexe J 253 from the FIA for classic cars this is annexe K from the FIA you can find every thing on www.fia.com . About SCCA i know not much . We build about 70 rollcages a year ( not only Datsun ) and do our own certification .
  11. I have seen them some where , but try your local machine shop to make them ,
  12. I wondering wath rod lenght and bore they use on this block ? I really looks like a L24/L26 block if you look at the freeze plug line up .
  13. There are different ways to do it i,i made them with fixed track and just adjustable toe in/out they are made from thin wall 4130 tube
  14. Tony , a have a contract with Sprite IT til 2012 , there is only one thing , we did not talk about money , bdw there are lot off flights into Africa from Brussels Airport .
  15. To build the Z to beat we should talk again about our sponsor contract .
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