Betke 21 with CMB M1 BETA

[David Murany]

Did some testing today with the new M1 kit for the BETA. The engine is still tight but is getting there.

https://youtu.be/SwQaAbM-wLU

 

[namba276]

Great engine!

 

[ALLAN YUEN]

Look good improve did you use turbo or std glow plug for new M1 kit ?

 

[Andy Brown]

I was beginning to think the throttle was stuck...until you brought it in!

 

[Ty Faust]

Andy I was thinking the same thing !

Nice running rigger

 

[Greg Bonahoom]

Looks good! What is an M1 kit?

 

[David Murany]

Haha. You gotta pin it to win it!

Allan I am running the turbo button.

Greg it is supposed to have higher timing numbers and it has some sleeve porting as well. I need to do some back to back testing with my old sleeve to verify rpm or torque differences.

Thanks

Dave

 

[Terry Keeley]

Sweet!

 

[shoboat]

David,

Was that an [email protected]" of cup?

I think you need something better on the back of that boat?

A new pipe is another suggestion. I will be downstate in

about three weeks if the weather holds out.

I will look in my propeller box tonight.

Thanks For Sharing,

Mark Sholund

 

[David Murany]

Mark,

That was a mild H5 I was trying. The H4s aren't quite enough with the new setup. What's wrong with the pipe? I need to shorten it some more. Give me a call if you want to come run.

Dave

 

[shoboat]

David,

The pipe might be fine, but the RPM could still come up more.

The boat did not seem as fast as it has been recently? Sometimes

the video does not do the boat, motor, and pipe justice. I will let you

know as the time comes closer in a few weeks about the testing. I found

some other options for you to test last night in one of my 21-Hydro propeller

boxes. Check your mailbox next week?

Thanks,

Mark Sholund

 

[Mike Betke]

Glad to see your not giving up on it. Looking good. Set that as the benchmark so you know where to get back to.

The H4 will work with more cup. I blew mine over in Mt. Vernon. It was strolling. I'll be making new sponsons this winter to fix.

 

[shoboat]

David,

I thought the M-1 kit in the CMB Beta-21 was running quite well yesterday at the pond?

With one other pipe and a couple of different propellers it seems to be running very well.

The New Betke 21 Hydro is running faster than the older one for sure, nice job with the

design changes Mike. I think more testing will make the boat even better on the water.

A few more pipes to test and I think you will be ready for 2016.

Thanks For Everything Yesterday,

Mark Sholund

 

[David Murany]

Thanks Mark. I'm surprised at how much I can shorten the pipe and still pull prop. Still need to work on the turn fin but I am looking forward to racing it next year.

It would have been nice to test your 12 some more because when it got on the pipe she was quick.

Let us know if you need anything.

Dave

 

[timothy johnson]

David nice post, what boat are you running? Thanks Tim

 

[Rob Betke]

Tim, it's a Betke boat.

 

[longballlumber]

Thanks Mark. I'm surprised at how much I can shorten the pipe and still pull prop. Still need to work on the turn fin but I am looking forward to racing it next year.

It would have been nice to test your 12 some more because when it got on the pipe she was quick.

Let us know if you need anything.

Dave

Man, I could have come out there and burned some 10yr old fuel, a worn out OS engine, in a used up Dumas hawk!!!! LOL! Just messing! Sounds like you guys had a good time. Sunday was nice; one of the last days we are going to getaround here.

See you guys for some bowling soon.

Later,

Ball

 

[timothy johnson]

Tim, it's a Betke boat.

Thanks Rob I see that from the name! Do you have any pics? Looks like a JAE.

 

[David Murany]

Here is a photo Tim. It's a 4 point rigger.

 

[David Murany]

Thanks Mark. I'm surprised at how much I can shorten the pipe and still pull prop. Still need to work on the turn fin but I am looking forward to racing it next year.

It would have been nice to test your 12 some more because when it got on the pipe she was quick.

Let us know if you need anything.

Dave

Man, I could have come out there and burned some 10yr old fuel, a worn out OS engine, in a used up Dumas hawk!!!! LOL! Just messing! Sounds like you guys had a good time. Sunday was nice; one of the last days we are going to getaround here.

See you guys for some bowling soon.

Later,

Ball

Yeah a used up Hawk my ass! That boat is sneaky fast and silent with that pipe!

Give me a call when you want to come up and get that 300 game!