Ys 60sr

[ratdog1]

Anbody using the ys 60sr?

[ticedoff8]

Yes

[Dawiev]

Love it,

[ratdog1]

Great ill.give one a try. Thanks guys what muffler is suggested and fuel % for best performance?

[ticedoff8]

Hatori SAB-1
Byron's Rotor Rage 22 1/2% (if you fly also fly a YS 120) or 30% (if you don't)

[ratdog1]

Must be a great motor you never see any for sale.

[ticedoff8]

The biggest, most powerful motor that fits in standard 50 / 56 size mounting pattern.

There is no replacement for displacement.

[ratdog1]

I read that os is to release there 105hz to fit the 600!
Anybody else read this?

[EKAN]

Originally Posted by ratdog1

I read that os is to release there 105hz to fit the 600!
Anybody else read this?

Where did you read this?

I am going to built a bigblock Rex 600 with 91 motor
If you are a little bit handy can you fix it by your self:

https://www.helifreak.com/showthread.php?t=473579

[ratdog1]

I think it was on runryder I'll find the posting.

[ratdog1]

Yes on r.r. under align 600 nitro section. Post is os 105hz in a 600 align bottom of page is the post about the os release

[ticedoff8]

You are re-posting rumors.

If you have a link to OS Engines with a product announcement or a reputable online hobby shop with a product announcement or pre-order offer, then this is simply speculation / wishful thinking.

[ratdog1]

K I'll keep watching the os face book page maybe they will give us some info.

[SlezY83]

Check Infinity Hobby - they have complete upgrade for 600N with different gear ratios available!!!
OS version is available here:
http://www.infinity-hobby.com/main/p...oducts_id=2906

YS version:
http://www.infinity-hobby.com/main/p...oducts_id=2925

[Dawiev]

I am very happy with the Helix Heli GT600 kit. It is now my experimentation air frame. The only and single drawback is the tank size, being a 600 tank. Doesn't give you a lot of time with a 91 or 96 in there....

Also light enough to make the gasser GT15 usable.


Ps. I have a YS 60 and it has been strong, easy to tune and reliable

[SlezY83]

Yes, HeliXheli is good conversion, but it has a big disadvantade - you must use 700 gears (it is not problem) and lowest gear ratio is about 8 - it is the problem...
For 600 size bird would be good to keep a 91 engine at about 16k (max) and have about 2200 on rotor (max). It correspods to 7,27 gear ratio. If I count with 600 size main gear, you must use about 23t pinion. And it is available at Infinity Hobby.
If you do not prefer 2200 head speed, lets say 2100, the gearing should be about 7,62 - about 22t pinion...
That it is the biggest advantage of the conversion.
I do not have it, because I bought OS MAX GT15 conversion, becaseu I did not know about the company.

Anyway, if you use YS60 in T-Rex 600 (gear ratio 8.5), it maybe would be the best to use 21t pinion. Because:

Practical RPM OS 55 2000-20000 RPM
Best Output OS 55 18.000 RPM

Practical RPM YS60SR 1800-18000
Best Output YS60SR N/A, but (15.000 - 18.000 with Hatori), I would target 17.000 RPM

[SMJT]

Here it is the OS105 for 600 size.
https://www.rcjapan.net/o-s-engine-o...1rkg7hbhv5mpa2

[ratdog1]

Hmm rumors?

[ratdog1]

Thanks for the link smjt.