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240260280

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Everything posted by 240260280

  1. @Patcon https://www.youtube.com/watch?v=_u31t13QO6A
  2. https://www.classiczcars.com/forums/topic/56375-weber-selection-and-initial-jet-tuning/#comments L28 overbore, hot cam, high compression Final Config: 45DCOE F19 E tubes 165 Main 175 air 34mm choke 65F9 idle fuel level:29mm
  3. Perhaps the comparable key points can be limited to lubrication/wear, deposits, replacement interval, seal interaction, and costs.
  4. A chap here tuned nearly the same engine so perhaps we can compare your set up to his to see if there are significant differences. If the smell of gas is from the car then you may have the same issue with EFI. There are a few gas hoses that pass through the cabin that age and release fumes. We can guide you though checking. The DCOE carbs also have fuel bowls vented through the air filters so that can easily fume out a garage where you store the car. An air box may reduce that smell.
  5. No you did not 🙂 Cool that your Canadian Z has the high performance/ high advance spec! Jim's distributor is an anomaly with the 6 stamp on the weight-limiting bracket. A D612 should be 12....hmmm D606 is 6 and D612 is 12. (and the D609 in the table is 9)....the part number speaks!!!
  6. I was thinking of doing similar with clear vapour barrier and tuck tape to seal. If you can keep the wind off then no paint abrasion.
  7. The 1970 L24 w/o pollution devices (middle D606-52) has 17 degrees initial advance at 700rpm and the mechanical advance is "all in" (additional 12 to make total of 29 at only 1000rpm). So it seems that the engine (focusing on performance and ignoring emissions) likes a lot of advance and "switches on" at low rpms! The one-spring distributor is a way to achieve it! But Jim has the emission distributor (D612-52) that comes in at 1,415 rpm... but it shows a 6 degree centrifugal rather than the 12 degree shown below ?
  8. Hmmm, the length of the slots determines the amount of advance so the short slot should greatly limit the advance.... ie, it will set the max advance limitation. This allows the manufacturer to only have to calibrate the length of one slot rather than have two matched. Also, without a spring, the free weight will be pulled to zero at engine stop maybe even at idle (by the sprung weight pulling its weight inward, and in turn, turning the slotted cross piece to 0)....but when the engine rpms increase, the unsprung weight will greatly speed up the advancing. It would act almost as a switch (off and on) rather than a ramp up. Perhaps this architecture allows the advance to happen quickly and the purpose of the spring is simply only to pull it all back to zero at very low rpms? My guess is that this asymmetry caused unwanted rotational imbalance and shaft wear so a symmetrical re-design was made.
  9. Jim, a great discovery. I never looked closely at early distributors yet but your photo shows two different sized slots for the weights to move. This points to asymmetry and could explain the one spring. All the ones I opened had equal length slots vs
  10. Looking at pictures again. What is up with the engine block colour for so low miles? Not much blue to be seen?
  11. Orange peel and paint thickness measurements seem to tell us something.
  12. Reminds me of 1969: Wizzer Toy and UFO TV show. and
  13. $2M USD with Batmobile styling:
  14. Given enough time, @Captain Obvious could roll out a whole Z on his lathe 🙂 Nice work,... lol that is how I was thinking to skin the cat too.
  15. It fits in the same category as the single rear control arm and extra wiper holes.... but, worth noting just the same.
  16. OK, I'll stir the pot in the debate of which market the Z was made for/ optimized for. Things like hood prop size, brake handle location etc. have been discussed. Here is another: Below we see the S31 (released in Japan only ~ 76 to 78) BUT its rear body panel clearly has unused large holes mandated for the larger 280z bumpers of the North American Market. Just say'n 🙂
  17. Perhaps our "free review services" should be socialized on BAT's S30 section.
  18. Piet Mondriaan Art 1921 Partridge Family Bus La Vie Claire Racing 1984
  19. It must be the shiny surface revealing it. I never saw this before?
  20. The tires have dangerous looking deformations in the sidewalls: I never saw this part painted? (Gas line shield plate). Is it normal?
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