Recent content by Mark Bullard

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  1. Mark Bullard

    LETS GET A THREAD STARTED.. 2024 AND THE 75TH ANNIVSARY OF IMPBA INTERNATS!

    It's next in line to paint. So I am hoping so.
  2. Mark Bullard

    LETS GET A THREAD STARTED.. 2024 AND THE 75TH ANNIVSARY OF IMPBA INTERNATS!

    We have talked about sometime in July. That will give us about 3 months for the entries.
  3. Mark Bullard

    LETS GET A THREAD STARTED.. 2024 AND THE 75TH ANNIVSARY OF IMPBA INTERNATS!

    Mike I am sure you will be able to. Those classes always make. Also, one other thing to remember is it does have to be 8 boats for the US 1 event. But if we have 5 boats in a class, we will make it a National Championship for heat racing only.
  4. Mark Bullard

    LETS GET A THREAD STARTED.. 2024 AND THE 75TH ANNIVSARY OF IMPBA INTERNATS!

    Yes it is a US 1. The reason you don't see it is this list of running order is the 2022 event. Which was very good with the boats we had. E mono did not make that year. It could be put in any day if it makes. remember it take 8 boats for a US 1 class. And as Rick said classes may have to be...
  5. Mark Bullard

    Records trial coming up soon April 1st - 7th 2024 Huntsville AL IMPBA and NAMBA

    Chris Grim has set the fastest two lap oval time ever recorded in NAMBA. He has set the record for A hydro with 15.575 seconds / 77.04 MPH. And it is the fastest time ever set in NAMBA two lap ovals.
  6. Mark Bullard

    foam safe CA

    e-zbond.com They are the one that makes the CA for all of the one you see in the hobby stores. I have been buying from them for 20 years. Of course I do not know if they will sell in small amounts. When I buy I get about 10 16oz bottles of medium ca and about 5 bottles of thin ca. Also when I...
  7. Mark Bullard

    End Play

    Good information Al. Our motors are locked with the small bearing. The shoulder on the crank with the collet of the flywheel is what holds it locked. The big bearing should not be tight in the housing or crank. It the housing is not deep enough this will cause load on both bearings. If the crank...
  8. Mark Bullard

    Twin limit

    Jeff is right. We build the twin class to be a class by itself. We left the motor size the same as F class on the get go. After we got the class I made another proposal to increase the engine size to 1.25 so the 101's could run. You can still run a twin in F class but it must be under 1.83. I do...
  9. Mark Bullard

    Bearing damage

    After seeing the pictures that Tom posted I am in agreement that the case is what is causing the problem. With a small portion of the outer race in that kind of fit showing is why the motors are eating the bearings. Use to be that the higher ABEC was better. It still is for some setups and I...
  10. Mark Bullard

    Bearing damage

    Very interesting. Jeff maybe on to something about half of the outer race hanging out of the housing. Our motors use the method of tight fit on the outer race and slide fit on the inter race. This is the standard fit for this kind of app. Spalling is caused by ball skidding or the ball locking...
  11. Mark Bullard

    Scam email

    Same thing has happened to the Directors of NAMBA. Same email.
  12. Mark Bullard

    Futuba help

    There is no doubt that Mike knows a lot about radios. But Futaba does care about boaters. They help sponsor the 2023 NAMBA Nationals. They had a tent setup at the race and was helping and repairing radios on the spot. If they could not be repaired on site they loan a radio to the racer and took...
  13. Mark Bullard

    7PXR Failsafe Mystery-thoughts/advice

    We had Futaba come and setup at the NAMBA Nats in Huntsville. Since they are in Madison next to Huntsville. They were there for support and repair. They fixed a lot of radio problems that racers were having. And did a wonderfull job. They done some testing with one of my boats with one of there...
  14. Mark Bullard

    Mixing Fuel

    I don't know. I don't use castor in my fuel. But the synthetic does.
  15. Mark Bullard

    Mixing Fuel

    One other thing that works good when mixing fuel. When you put the fuel into your jugs put them in the freezer. pull them the next day and pour thru a paint strainer into another jug. If you have a little water in your fuel it will freeze and will be strained. you will see the colored ice in the...
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