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HelicopterEngines Plugs Mufflers Fuel › YS 91SR / SB 18/19 question
09-15-2007 03:22 AM  10 years agoPost 1
xlpro

rrApprentice

Lubbock, Texas

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I have an SB 18FH (1900 rotor speed) that was on my OS 91szh, my question is there much of a difference in pipes for the os vs. the new SB 19 for the ys91sr, or are they the same pipe, I assume there is an internal difference. The outside dimensions and looks are identical.

Thanks!

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09-16-2007 05:06 AM  10 years agoPost 2
Thomas_W

rrApprentice

Shenandoah,Va USA

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i believe the differences are all internal.. but i'm not 100% sure. might wanna call heliproz or hatori and ask them.

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09-16-2007 05:57 AM  10 years agoPost 3
laddy

rrVeteran

Midland Texas

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Just buy the SB19 and be done with it. You will thank me later.
Ladman

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09-17-2007 12:58 AM  10 years agoPost 4
xlpro

rrApprentice

Lubbock, Texas

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yea i'm fixin to thank you - in person!!!

haha!

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09-17-2007 02:42 PM  10 years agoPost 5
BJames111

rrElite Veteran

San Diego,​California

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From what I understand the 19 will be much smoother than the 18. I have been using the 19 with my SR for a couple of weeks now. It has a lot of torque, and a nice tone.

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09-17-2007 05:33 PM  10 years agoPost 6
Chuckie

rrKey Veteran

Crofton Maryland

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The SB-18 was not designed for the YS91 ST4 or YS SR. People have been using it with good results. The SB-19 was tuned to work with the SR and provides great power and torque. The SR with the 19 is not as smooth as the SB-16 but you don't get power for nothing and it's a small price to pay. The SR/SB-19 still runs smoother than most OS's I've seen. I ran the 18 in my new SR and it didn't sound good. The tuning of the 19 (internals) is different for sure.

Charles

Please stand by for faster service!

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09-17-2007 06:42 PM  10 years agoPost 7
JR4EVER

rrApprentice

Norway

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HI! I'am about too buy a ys sr, But when i visit hatori home page and looks for pipes, The articlenumber is #937 and #946 is one of this pipes a sb-19 Only with a different number when is sold in Singapore and kina.Thanks!

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09-17-2007 07:21 PM  10 years agoPost 8
MrMel

rrProfessor

Gotland

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No I dont think so, only way to get the SB-19 AFAIK is to order it from USA at the moment (its not released as ### pipe in Japan/EU)

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09-19-2007 03:22 PM  10 years agoPost 9
Dino Spadaccini

rrElite Veteran

USA

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choice 2

A mp-5 for the 90 runs really good on the SR there is a vid of colin bell flying mine at ircha on fri noon demo's check out i was pulling 12* +/- with 710 radix

RIP Roman JR
Capt USA Align Factory Team Align - Conquer Your heart
Team Futaba

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HelicopterEngines Plugs Mufflers Fuel › YS 91SR / SB 18/19 question
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