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HelicopterHIROBOHirobo SDX › What Engine/Pipe Combo?
08-31-2009 06:53 PM  8 years agoPost 1
rexxigpilot

rrProfessor

Florida

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What engine/pipe combination is everyone using? I replaced my RL 53 and RL pipe with a YS 50 with MP5SB pipe. I just can't seem to get enough power out of it. I'm interested as to what other combinations others are satisfied with. I may end up with the new YS 56 or OS 55 when they come out, but I need something now! Thanks in advance.

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08-31-2009 10:49 PM  8 years agoPost 2
Gary Jenkins

rrElite Veteran

Nowhere, US

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Why not just go with the OS70 for the same price as the OS55?

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08-31-2009 11:07 PM  8 years agoPost 3
tr0cks

rrApprentice

NJ, 08344

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50 hyper, with outrage pipe, makes great power, and wont break the bank.

os 50 now around 150.00
outrage pipe around 70.00

great combo

on my sdx and vibe 50

I remember when sex was safe and Heli's where dangerous.

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08-31-2009 11:17 PM  8 years agoPost 4
Heli Wiz

rrApprentice

Moravia,N.Y. U.S.A.

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I'm using a O.S. 50 Hyper with the Bobby Watts Hatori AWESOME combo!!!

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09-01-2009 12:27 AM  8 years agoPost 5
MR SLOWFLOW

rrVeteran

N.J/N.Y

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50 hyper/ mp5

aka MR AIRBRUSH

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09-01-2009 06:11 PM  8 years agoPost 6
rexxigpilot

rrProfessor

Florida

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Anyone using a different pipe with the YS50 and satisfied with the power? I have the OS 50 in Raptor with the Outrage pipe and another in a 600N with the Align pipe. Both seem to make much more power than the YS. Is the YS just a weak engine or am I using the wrong pipe?

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09-01-2009 06:24 PM  8 years agoPost 7
blackbird

rrVeteran

thessaloniki-Greece

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os50 hyper,mp5 SB.

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09-02-2009 04:23 AM  8 years agoPost 8
Raptorz499

rrKey Veteran

NJ

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Any comment as to the MP5 SB's sound...is it loud??

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09-02-2009 04:37 AM  8 years agoPost 9
Turkana

rrKey Veteran

Montreal,Quebec , Canada

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The Mp 5 SB is fairly quiet compared to other pipes. Yes its quiet. Regards Pete

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09-02-2009 12:50 PM  8 years agoPost 10
blackbird

rrVeteran

thessaloniki-Greece

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i like the sound of mp5SB and yes it's quiet.

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09-02-2009 01:56 PM  8 years agoPost 11
rexxigpilot

rrProfessor

Florida

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Wow, the MP5SB is quiet? Maybe there's something wrong with my MP5SB. Mine is definitely not quiet! It is noisy as hell, very much like the Align pipe. Certainly louder than the non SB version of the MP5.

My Outrage pipe has the sweetest sound of all the my pipes for 50 engines. The Hatori and Redline 3D (black) pipes also sounds good.

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09-02-2009 06:35 PM  8 years agoPost 12
rudyy

rrElite Veteran

E. Amherst, NY

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I am using OS50Hyper with MP5SB. The MP5SB is not loud, but I would not say it is quiet. But definitely, it is much quieter than the Align pipe.

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09-02-2009 09:19 PM  8 years agoPost 13
larason

rrNovice

sweden

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Funtech(A395)!!!
I think that's the one in some pictures with the new OS engine...
Its realy great(and looks good to)It fits on the SDX without cutting the canopy.

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09-02-2009 09:24 PM  8 years agoPost 14
rexxigpilot

rrProfessor

Florida

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Anyone try the Funtech pipe with the YS 50?

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09-02-2009 10:37 PM  8 years agoPost 15
AAKEE

rrApprentice

Boden, Sweden

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+1 @ Funtech pipe.

At first I used the Funtech(A170) on a OS50 and now I use it with a TT RL53.
I did try the Align50 pipe, but the engine made noticable less power with this pipe, it was qiut easy to bog the engine with that pipe.
With the Funtech its a lot stronger and recovers very quick when I made my pitch management bad(12degree pitch and 8 cyclic).

I fly with HS2100.

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09-03-2009 03:01 PM  8 years agoPost 16
Wyorcflyer

rrVeteran

Cheyenne, Wyoming USA

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Gary Jenkins

Why not just go with the OS70 for the same price as the OS55?
Gary, if you can come up with parts to make a .70 conversion work, I will do it in a heartbeat.

BTW to answer the post I have a tt53 / Hatori. So far it sucks. Won't transition. I am still working on it. Have some shims coming to see if that helps.

jack

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09-04-2009 03:55 AM  8 years agoPost 17
ikkie78

rrNovice

Menasha, WI USA

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Dumb newbie question but whats the difference between the MP5 and MP5SB? When I get my heli I'll be getting an OS50 Hyper...I was looking at a couple different pipes and was considering the MP5 but wasn't sure if the SB version was any different or if it mattered since I'll be just learning to fly helis.

~Ryan

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09-04-2009 10:12 AM  8 years agoPost 18
rexxigpilot

rrProfessor

Florida

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Ryan,
The SB stands for Stick Banger. The SB version is tuned to produce more peak power but over a narrower rpm range than the regular MP5.

jack,
I took the TT RL53 and RL pipe out because of the sticky carb problem with the 53. It made great power. There's another thread on RR that discusses modifying the 53 with an OS50 carb. Only problem with that fix is the carb is $80± and it has to be scabbbed on to the 53.

Anyone considering the KME? Its 2.4 hp would make the SDX feel like a feather!

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09-08-2009 06:08 AM  8 years agoPost 19
Andy.Kim

rrVeteran

Seattle, WA

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OS50 + Hatori

I'm quite content with an OS50 and Hatori Muffler. I've used an Align muffler before. I can't tell the difference but apparently there's a slight improvement with power with the Hatori. Align is great for the price and I heard just as good as things about the Outrage pipe.

I'm running 2000 headspeed. 2100 headspeed gives better pop at the expense of the life of your engine.

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09-08-2009 09:35 PM  8 years agoPost 20
rexxigpilot

rrProfessor

Florida

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Got to Go Big Bore

Well, I tried all weekend to get the SDX to perform at least like it did with the Redline 53. It just aint gonna happen with a 50 size engine! I ran the thing at headspeeds up to 2150, had the engine as lean as it would go before vaporizing the glow plug, tried differnt plugs, used various blades and adjusted the cyclic/colledctive pitch mixing. It just doesn't get it.

I ordered a Novarossi 57 with Rex H5 pipe. I still need to get the correct header to fit the SDX and change gear ratio to 8.9. I'll let you all know how it works out soon. Thanks for everyone's help!

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HelicopterHIROBOHirobo SDX › What Engine/Pipe Combo?
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