Jump to content
HybridZ

RTz

Administrators
  • Posts

    2941
  • Joined

  • Last visited

  • Days Won

    23

Posts posted by RTz

  1. LoL.. ya a pilot Ron?!

     

    Roger that.

     

    Im workn on my instrument rating right now .. commercial by the end of the summer =)

     

    Very good!... how far along in your IR training?

     

    I'm 'finished' with my IR so to speak... passed the written (most difficult test I've ever taken) and fulfilled all curriculum requirements. I just need to take the practical. I'm slowly plinking away at a CFI position. Probably get stretched out over years, as instructing would be primarily for the enjoyment of it.

     

    I expect a ping when you get your IR and Commercial.

     

    Best of luck!

  2. Not sure what you mean. I thought the 240s and early 260s had the doors with no reinforcement, and the 280s had the reinforcement.

     

    I believe its correct to associate the latch change with the door reinforcement... that happend circa '77, near as I can tell.

  3. It seems even a thermal barrier coated plastic intake would be a good idea. And coat the runners inside as well...

     

    For what its worth, Finish Line Coatings refuses to ceramic coat the interior of an intake manifold... ingestion risk should any of it 'depart', they claim.

  4. Looking good Justin.

     

    I have a couple comments, if I may...

     

    I added slight cutouts(0.050") to center the runners to the flange. Also, I added material to make the runners easier to weld up.

     

    I wouldn't (and didn't) do that. Considering the weight of the plenum, over the years, the pounding could work at the welds. None of my welds at the tubes carry any weight. I ran my tubes the full 1" depth (into the flange), beveled them, and welded them on the mating surface (fly cut afterwards). This way the flange carries the weight and the welds only 'keep it together'.

     

    In other words, at the time of this picture, there wasn't a single weld, but you could stand on the outboard flange...

     

    Intake1Medium-2.jpg

     

     

     

    I also had this idea for the top bolt holes. Let me know what you guys think. I'm not a machinist, so I'm not sure which design is more efficient (cheaper) to machine.

     

    l28flange3fy0.jpg

     

     

    The above picture is what my original drawings reflected (regarding the bolt bosses). While it is more attractive, I feel that method would allow more deformity to develop in the gasket. I'm of the opinion you'll get a more consistent seal with your original, 'flush' bosses.

  5. It is a an external coil.

     

    Are you confident that you have adequate dwell/discharge settings?

     

    What is your thoughts on the throttle body?

     

    The 52mm TB is probably justifiable.

     

    Thanks for the great idea to data log and check the RPM rate change with different A/F ratios. I can try it on the street in 3rd, logging a few seconds at WOT. I will check my last couple of logs from the track and compair thise too.

     

    3rd should work. Just be mindful of using low gears... the car may go through the RPM bands more quicklly than the O2 can respond, giving you a misleading indication.

×
×
  • Create New...