Video/ Eagle SGX 21

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JeremyEdge

Well-Known Member
Joined
Jun 16, 2009
Messages
1,955
Filmed by Danny King/

My Eagle SGX powered by a Mac .21..

 
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Thanks Allan, 1445.
Best ABC H-4 cup 3.0" by Andy Brown It is very fast " Thumb Up "
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Good Luck at WinterNats
 
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The 1445 is working pretty well for now, I am still working with the boat and will try H-4 later after I work the boat some mor.
 
Cool, I've never tried one of those pipes before. Back when I ran a mac .21 in an eagle, I was running a kalistrotov .21 nitro pipe I got from Al Hobbs with an external muffler. That pipe really woke that mac up. I believe I was also running an H-4 with 3.46" of cup from Mark.
 
Jeremy,

The boat looks good on the water. I sent you a propeller yesterday

That should help you reduce the pipe length even more. The XT-21 pipe

Works best very short.

Have Fun Testing,

Mark Sholund
 
Jeremy,

The boat looks good on the water. I sent you a propeller yesterday

That should help you reduce the pipe length even more. The XT-21 pipe

Works best very short.

Have Fun Testing,

Mark Sholund
How short are people running their .21 pipes these days?

Is more RPM the key to speed over less RPM and more pitch?

Thanks.
 
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Craig,

I run my pipes as short as 6.75" to 7" with less cup on the propeller.

RPM = SPEED

If you run too much pitch you will never be able to get your pipe short where it needs to be.

The shorter you can get your pipe the faster the pressure wave will get back into the engine.

You will never two stage on a long pipe believe me. This is why the engine temperature needs

to remain hot also. This is the reason to limit the water coming into the water jacket. Heat will

help your motor burn more fuel and will make your pipe work better.

Keep Testing Different Combinations,

Mark Sholund
 
George,

Jeremy thought right around high 60's to 70 MPH.

Looks Nice !

Mark Sholund

Jeremy,

Have you tested and made video three yet?

Or are you still getting the house stuff squared away?
 
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