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Badger50 · 04-02-2009, 08:19 PM

Hey guys: any of you 90 flyers used or seen this main gear used: http://www.heliproz.com/prodinfo.asp?number=254357

It gives 8.18 gear ratio, and was just wondering what the results were. I have 2 90's with OS and YS engines running the 8.27 ratio and do you think there would be any significant benefit. Thanks for any info.

G550plt · 04-03-2009, 04:34 PM

Not enough power with those 90's of yours Badger??? !!!

just joking.. what are you hoping to gain, Im curious now!

Badger50 · 04-03-2009, 07:25 PM

No problem 550 :-) I remember Jim Lerch posted something a month or so ago about using a 7.95 ratio that he came up with. He liked the results because of the higher head speed and lower engine RPM. So I was just wondering if anyone out there has used it :-) Its not a big deal on my YS, but I wouldn't mind trying on my OS to being the engine RPM down, and possibly the vibrations that 90's are known for :-) What the heck, think I'll give it a try :-) Besides you how we heli guys are...better is always better :-)

reaaz · 05-05-2009, 09:51 PM

Anyone tried that gear as yet???

04-02-2009, 08:19 PM	#1 (permalink)
Badger50 Registered Users My HF Map location Join Date: Oct 2007	New Raptor 90 Main Gear Hey guys: any of you 90 flyers used or seen this main gear used: http://www.heliproz.com/prodinfo.asp?number=254357 It gives 8.18 gear ratio, and was just wondering what the results were. I have 2 90's with OS and YS engines running the 8.27 ratio and do you think there would be any significant benefit. Thanks for any info. __________________ Mike: Rap-90 3D x 2, Rap-50 x 2, Fury 55, Rex-450, Hirobo Squark. *"Depression is nothing more than anger, without enthusiasm"*

04-03-2009, 07:25 PM	#3 (permalink)
Badger50 Registered Users Thread Starter My HF Map location Join Date: Oct 2007	No problem 550 :-) I remember Jim Lerch posted something a month or so ago about using a 7.95 ratio that he came up with. He liked the results because of the higher head speed and lower engine RPM. So I was just wondering if anyone out there has used it :-) Its not a big deal on my YS, but I wouldn't mind trying on my OS to being the engine RPM down, and possibly the vibrations that 90's are known for :-) What the heck, think I'll give it a try :-) Besides you how we heli guys are...better is always better :-) __________________ Mike: Rap-90 3D x 2, Rap-50 x 2, Fury 55, Rex-450, Hirobo Squark. *"Depression is nothing more than anger, without enthusiasm"*

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04-03-2009, 04:34 PM	#2 (permalink)
G550plt Join Date: Oct 2008	Not enough power with those 90's of yours Badger??? !!! just joking.. what are you hoping to gain, Im curious now!

05-05-2009, 09:51 PM	#4 (permalink)
reaaz Registered Users Join Date: Apr 2007	Anyone tried that gear as yet???

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