[NSRCA-discussion] YS170DZ inside info???

[Woodward, Jim]

I flew Juan Romero's Pinnacle with YS 170 just before this Nats.  At
that time he replicated Sean's 2006 Nats setup by using the APC 16x13
prop, throttle barrel restrictor, & hatori setup.  Like this, the
"ballistic" power was tamed a bit and the plane was VERY EASY to set the
flying speed with.  The low end torque smoothness was noticeable over
the 160.  Even with this prop you could still add power in the radius or
once pointed vertical and get just the upline speed you wanted. On this
setup the plane was very quite and sounded like it was just hushing by
during horizontal passes and such.  Later he changed props to the 18.1 x
10 and liked it even more.  However, and unfortunate stab looseness
issues once in Muncie made him switch to his backup Brio.  I loved the
way the motor flew and felt it was like adding a 4th dimension to the
pattern and made it easier to set the speed and fly - The low-end felt
very electric-like but you still had the top end power of the YS.  

Thanks,
Jim W.



 
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-----Original Message-----

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Mike
Hester
Sent: Thursday, August 09, 2007 8:06 AM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] YS170DZ inside info???

Supposedly it is slightly stronger (about 2-300 rpm as mentioned) and 
smoother. The 160 is already really strong and smooth, especially with
the 
NMP venturi. Say goodbye to the YS idle sledge hammer.

BUT I understand they have decided to rework the engine in some way.
Why, I 
have no idea, my guess would be to compete with the new OS 200fi. I'm
not 
sure it's necessary, I never get close to wide open with the 160, even
with 
my new red brick (LOL) but ok.

As for when it will be available, your guess is as good as mine.

-Mike

----- Original Message ----- 
From: "Anthony Romano" <anthonyr105 at hotmail.com>
To: <nsrca-discussion at lists.nsrca.org>
Sent: Wednesday, August 08, 2007 8:25 AM
Subject: Re: [NSRCA-discussion] YS170DZ inside info???


> Never ran any DZ but in conversation with Quique he mentioned 2-300
rpm
> stronger than the 1.60.
>
>
>>From: Bob Kane <getterflash at yahoo.com>
>>Reply-To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
>>To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
>>Subject: Re: [NSRCA-discussion] YS170DZ inside info???
>>Date: Tue, 7 Aug 2007 16:33:05 -0700 (PDT)
>>
>>I'm a fan of YS engines, but I don't know of anybody flying one of
these
>>except for a few of the top FAI pilots.  It certainly had the power to
>>effortlessly pull Somenzini's biplane around the P-07, F-07, and
unknowns
>>with ease.  That being said, the 160 is a good engine, just make sure
you
>>know which way to adjust the injection pressure. The best prop is the
APC
>>18.1X10.
>>
>>Bob Kane
>>getterflash at yahoo.com
>>
>>----- Original Message ----
>>From: colin chariandy <cchariandy at yahoo.ca>
>>To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
>>Sent: Tuesday, August 7, 2007 11:57:39 AM
>>Subject: [NSRCA-discussion] YS170DZ inside info???
>>
>>I'm going to set up an Integral for next spring and am trying to
decide
>>  if to get a 160 now or wait on the 170 (Fall/Winter)
>>
>>   Anbody have any inside information about the new 170?
>>
>>   Is it going to be significantly more expensive? (This is a key
>>  factor)
>>
>>   What are the refinements over the 160? Is there anything to
improve?
>>
>>   Is it expected to be more reliable/maintenance free? ( Another key
>>  factor for me, currently operating "bullet-proofed" OS140s )
>>
>>   Basically....Is it worth waiting for?
>>
>>
>>
>>   As usual, any info will be greatly appreciated.
>>
>>   Thanks All.
>>
>>   Colin.
>>
>>
>>
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>>
>>
>>
>>
>>
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>
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