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  1. bune

    Gear set for ZF 5DS25-2

    I have a set of Pinion and Crown wheel for sale, the gear ratio is 3.2 and will fit those of you that race or want to go fast The parts are in mint condition have aproc 1200 km run distance. Since I do not race, they are not the best for driving inside the town. Asking 1850 GBP + freight to...
  2. bune

    Assembling a Monocoque

    Some pictures from earlier this evening
  3. bune

    Weber 48 ida help

    I think the most important is to get the float level correct before you proceed, And I would recomend to start with main 180 and idle 70f10.
  4. bune

    Steel welded frame vs Monocoque

    On my self made mono all metal(almost all) are galvanized. And last for ever.
  5. bune

    Assembling a Monocoque

    Just a note to my build. Long time ago I bought aprox 1000kg with all kind of aircraft nuts and bolts (aircraft grade, UNF) that was made in mid 60's, so I did not have to buy anything in this category . It was nice to be able just go in the storage room in my garage and pick what was needed...
  6. bune

    Assembling a Monocoque

    I have now a gear ratio that I am happy with. So then I have a 3.2 gear set that is just laying here. If some of you want to go real fast, send me a message.
  7. bune

    Assembling a Monocoque

    I had a trip today with a friend just to visit a local car&coffe . I just push on some power on some straight roads the beast scared me it was fast, and that was not with the pedal to the floor, I did not had the nerve to try it yet. reaction with the new gear ratio was excellent . So now I will...
  8. bune

    Assembling a Monocoque

    Here are a small update on my now completed and road legal GT40 After some test driving I found that my LeMans ZF was not for road driving. 3.22 was just for LeMans. So I had to do something. After a try with a bad produced crown wheel and pinion(clearence was 2mm between Crown wheel and...
  9. bune

    How much power to a ZF 25-2 ?

    I was told by a friend that the ZF could not handle a engine 347 423hp torque 425 ft/lb he said that the ZF must have the donuts on the axle due to the high hp and torque. The flex in the donuts was the safe part for not brake parts in the gearbox. I have the 930 couplings in both ends on...
  10. bune

    Can’t enter first or reverse at idle (ZF box)

    Does the gear moves freely ? There are a way to adjust the forks little if not. check this first. You can find how to adjust in the repair manual.
  11. bune

    Left or right treads on the spinner

    Hi Can someone explain why I should have left treads on the rigth side and right treads on the left side. Someone told me it must be oposite:rolleyes:. And now I am not sure what is right. Rune
  12. bune

    Steward Warner fuel pumps problem

    That helps, then I leave them as they are in perfect condition :)
  13. bune

    Steward Warner fuel pumps problem

    Doc, when I run at 3 psi I oserved that one of the intake valves on the Weber was pressed open and it leaked, so at 2.5psi it was ok.
  14. bune

    Steward Warner fuel pumps problem

    Thanks Doc. The pumps deliver enough fuel, but when I start the pumps they run fast until pressure is up, then I tougth they should stop until there are need for fuel, but the pumps still run a little not much, so I do not know if there are need for dissmantling the pumps. I have a regulator...
  15. bune

    Steward Warner fuel pumps problem

    My fuel pumps leak the fuel back, it is possible a no return valve not working, it is the same for both pumps. Does someone have a chematic drawing to share so I can see how they work ? I do not like to open the pumps without know what is inside. I belive it must be a kind of flapper valve there...
  16. bune

    to make Weber 48 ida more economical

    What is fuel comsumtion on normal driving ? The books do not tell that, but I think that you folks out there that have miles on your car, have some numbers on this.
  17. bune

    to make Weber 48 ida more economical

    Will it be wise to check the AFR on both exhaust ? So I use a duel AFR instrument?
  18. bune

    to make Weber 48 ida more economical

    I know that people do not install Webers because they want lots of mmiles pr gallon, my Webers run very good from idle to max load, but when I drive normal on the road I feel that they use to much fuel. I have not done good measurement on this yet. I made the third progression hole, and wonder...
  19. bune

    Show us your GT40!

    Here are my 40 waxed and ready for a display
  20. bune

    Show us your GT40!

    My Original 40 "clone", build from drawings from the holy grale.
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