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Thunder Tiger Raptors 30-90 - Imperio > RAPTOR 90 Gear ratio question
 
 
FlippingInvrted
New Heliman
Location: PA

My Posts This: Topic  Forum		What is the best gear ratio for the 90 with a YS 91 ST not SR?
07-01-2009 03:24 AM
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george0079
Elite Veteran
Location: Tired of the politics

My Posts This: Topic  Forum		8.45 is the best ratio for the ST.

I don't know how close you can get to that with a Raptor, though.

I can please 1 person a day.
It's NOT your day.
Tomorrow's not lookin good, either
07-01-2009 03:25 AM
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jsenicka
Elite Veteran
Location: Hampton VA

My Posts This: Topic  Forum		I flew mine on 8.27 and was happy. I ran the head speed up pretty high to get the motor at 16k.
8.45 will be a bit more forgiving of collective usage

Jim Senicka
3x T700N/OS91 - 3x Vibe 50/OS55HZ - Trex 450 Pro
07-01-2009 12:11 PM
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jsenicka
Elite Veteran
Location: Hampton VA

My Posts This: Topic  Forum		you can run 11/91 for 8.27 and 11/93 for 8.45
either will work pretty well depending on flying style

Jim Senicka
3x T700N/OS91 - 3x Vibe 50/OS55HZ - Trex 450 Pro
07-01-2009 12:12 PM
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BJames111
Elite Veteran
Location: Billings, Montana

My Posts This: Topic  Forum		I actually liked the 8.27 much better on my last Raptor. 8.45 is obsolete (I feel) for today's flying styles, and the headspeed that is popular today.

Brian James
07-01-2009 01:48 PM
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Reaaz
Heliman
Location: Trinidad

My Posts This: Topic  Forum		how about the 8.18 ratio obtained with the Elevated RC 90 tooth gear? Better than 8.27??
07-08-2009 06:39 AM
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jsenicka
Elite Veteran
Location: Hampton VA

My Posts This: Topic  Forum		Not for an ST.
It is a rev happy motor, not a high torque motor.

Jim Senicka
3x T700N/OS91 - 3x Vibe 50/OS55HZ - Trex 450 Pro
07-08-2009 11:36 AM
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50feet
Key Veteran
Location: Wilmington, Delaware

My Posts This: Topic  Forum		The lower ratio will allow you you obtain a higher head speed while keeping the engine rpms down.

Team Thunder Tiger
Team MAPTERGY
To trust no one is to trust everyone equally
07-08-2009 11:45 AM
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Thunder Tiger Raptors 30-90 - Imperio > RAPTOR 90 Gear ratio question
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