X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=PKtNwriC c=1 sm=1 tr=0 a=GfvLLS2L5UcZJzg+D3OMGA==:117 a=2ur7OfE09M0A:10 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=eRLigfuSAAAA:8 a=doj253uPAAAA:8 a=_6GpL_ENAAAA:8 a=UKPAHat8AAAA:8 a=on22okXAAAAA:8 a=7g1VtSJxAAAA:8 a=5Z2DbCgQ8JPFOoudnTwA:9 a=7Zwj6sZBwVKJAoWSPKxL6X1jA+E=:19 a=t4OyMUTnU5l9oZ43:21 a=EC74yVqAr7A2j5FG:21 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=SG3J2MUMPWZ1rwvKdS4A:9 a=1pDHGTI9x1mCd8hP:21 a=UtgZNy5c22Ochm_S:21 a=IsaUgH2Cr0Di4IyO:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=BfhXYjFvZD4iae-mNffo:22 a=LxEQM0Qe_qWNT4-WEIfn:22 a=Fc6xXSS-RxGHxrvp76Qp:22 a=NPqpj5bUEVj9vR1HIonK:22 a=grOzbf7U_OpcSX4AJOnl:22 From: "Andrew Martin andrew@martinag.com.au" Received: from mail-qt1-f179.google.com ([209.85.160.179] verified) by logan.com (CommuniGate Pro SMTP 6.2.10) with ESMTPS id 11996140 for flyrotary@lancaironline.net; Thu, 13 Dec 2018 19:44:08 -0500 Received-SPF: none receiver=logan.com; client-ip=209.85.160.179; envelope-from=andrew@martinag.com.au Received: by mail-qt1-f179.google.com with SMTP id d19so4423861qtq.9 for ; Thu, 13 Dec 2018 16:44:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=martinag-com-au.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=V4ZiuS4cRRcQRUtMLghIcOC5Bn5Loe+drg12W4egqow=; b=Yw+Yhgj2uhIBydy3cuHNjB9frln3P4CrztqoJAcUWqg6EHlEkilYSUkWW2/L3QlnD/ x8V/8YvSvB1HK6SuC8HSf2rRTNNE75A2I+gy8E6Ps/Vr6lLQ2CK+e3qy2KIyYv3JScQE vm1Q/ELsXP657C2u6ZkTq7JRXaybvnLWZvdUNS+0mI15RDHD4P92xG9Tp6RfIk3+W6ni WgW6pEZGDt9m6eLTJ/zl5kI87bM+G3h+raSr2WBzdTxz7IsLZt7Cq2HiSNUjV0QEypHp 3fWofPBwuukTaFcMgd5zYquEgFQ+6LYXVhu1uIS8Za4LGJ0/lGUxIDK5GaqMivblS0w8 rGdw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=V4ZiuS4cRRcQRUtMLghIcOC5Bn5Loe+drg12W4egqow=; b=CFN3cAd1Q3UJHHMsVoGAyiC5PBeytCZy1OWFJq7TyOuyFxVfM1KQLBoRP4Bra5qOX+ ZRn9C4t0oPnmv5dqIj5W4p8Xa0Aeq/VG3nssM8XTf03HQKOW+3jp5ektU74ofIGR+PDO t83bFzd3PVlWZoVi4plLzqmyDiVSiB+n0K1GdPKot9lQ4JSa+OTyt/qTaNnndbmS+ZyI 9tWaujcfvpWoN0jLdKCX2EHPfNlbF8A01JK/7SZhKhdfkJepcgEPotZqDdhZQlDYe7fR S+fT/AZJD1i8EDbbZrR4gviWnlRXuvII2wEbGVLiplRFpKgFnIeCcajNtVUgLs35hZ50 taXw== X-Gm-Message-State: AA+aEWbFB9gEiOBrY1mYEPmX7XdpJ99aXojkUQxuF4F+eRPsljL/X3JM SlAF9vNFt+PZa2+xZSaA7EHF78oBjDagE1wlCWpUmSA= X-Google-Smtp-Source: AFSGD/WCVGJjdME9wZ/9WrOMTIrd2a52nOckhg7PWz2cUELOTQOhZz9tJjTI1dYNAJoiFpHWFFws+h9RttE3ga3N/ws= X-Received: by 2002:a0c:db04:: with SMTP id d4mr940066qvk.114.1544748230019; Thu, 13 Dec 2018 16:43:50 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Date: Fri, 14 Dec 2018 08:43:37 +0800 Message-ID: Subject: Re: [FlyRotary] Re: Hey Neil, To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="00000000000084a031057cf0b92a" --00000000000084a031057cf0b92a Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Turbo 8.8 kgs. Mine came off a ford 666t motor that we swapped out in one of the tractors. Haven't pulled it apart yet to measure it for specs. The diesel flows about the same amount of gas as the 20b so guess it will just spin slower on the 13b. Will try to set up a flow bench to test it for enough boost. Andrew On Fri, 14 Dec. 2018, 5:09 am Neil Unger 12348ung@gmail.com < flyrotary@lancaironline.net wrote: > Andrew, > > yeah, my probes were only 2 inches from the port and > melted quite nicely. All with the microtech ECU which was a fair > "illegitimate" to tune. I tend to suspect that the min dist should be 4 > inches or more. That turbo you suggest -- it was fitted to nearly all IH > machinery, even the old 1480! Does that go back! Do you have any idea = as > to its weight? Neil. > On 12/10/2018 8:48 PM, Andrew Martin andrew@martinag.com.au wrote: > > > Neil. others will know lots more than me as I'm still trying to work this > engine out. > I don't really have enough data to quote reliable numbers, But last fligh= t > the data recorder showed egt 850-950c upto 1030c all at same rpm's > 2200-2300 prop rpm (2.85:1 reduction), seems the egt's are more a factor = of > Afr's than rpm with the cooler temps when afr <12.5, mid range when afr > > 16, high temps afr between 13-16:1 > Have now lost 3 egt sensors, originally all placed 50mm from port. just > too close me thinks. next lot will be further away but this will place th= em > in the tube where gas from both rotors are mixed so not sure if I'll get > individual rotor temps or if that really matters anyway. > Andrew > > > On Mon, Dec 10, 2018 at 3:34 PM Neil Unger 12348ung@gmail.com < > flyrotary@lancaironline.net> wrote: > >> Andrew, Just what EGTs do you see at what revs? Neil. >> On 12/10/2018 10:03 AM, Andrew Martin andrew@martinag.com.au wrote: >> >> Neil, In Aus I=E2=80=99ve found Justraceparts.com in Qld good for qualit= y >> sensors, their Egt sensors are $26 rated to 1300c. Have not tried their >> instrument display though as I just connect to my Efis & Em2. >> Andrew >> >> On Mon, 10 Dec 2018 at 6:24 am, Charlie England ceengland7@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >>> Who was it on the list that was using a Maximite for instrumentation? >>> Shouldn't be too difficult to add a temperature reference & order Chine= se >>> probes from ebay. >>> >>> Charlie >>> >>> >>> Virus-free. >>> www.avast.com >>> >>> >>> On Sun, Dec 9, 2018 at 3:30 PM Neil Unger 12348ung@gmail.com < >>> flyrotary@lancaironline.net> wrote: >>> >>>> Bobby, >>>> >>>> Only reason for an addition to the fueltech is >>>> neatness, but at that cost a stand alone EGT is attractive.Currently >>>> investigating as freight is the killer from the USA. Need a local sup= plier, >>>> >>>> Neil. >>>> On 12/10/2018 8:08 AM, Bobby J. Hughes bhughes@qnsi.net wrote: >>>> >>>> Neil, >>>> >>>> >>>> >>>> I have flown an Eaton MP90 4th gen super charger for a little over 500 >>>> hours. No intercooler with the super charger. Turbo FWF is in the work= s and >>>> will have an intercooler. I needed a wider compressor map at a lower P= R for >>>> takeoff than the TO4-50 . I ended up purchasing a Garret GT3076R w/ Ti= al >>>> 1.06 SS housing. I would have preferred a journal bearing turbo but th= is >>>> one is ball bearing. >>>> >>>> >>>> >>>> Do you have a reason for added EGT=E2=80=99s to the fueltech vs an air= craft >>>> engine monitor / efis? >>>> >>>> >>>> >>>> >>>> >>>> Bobby >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net >>>> ] >>>> *Sent:* Saturday, December 08, 2018 2:47 AM >>>> *To:* Rotary motors in aircraft >>>> *Subject:* [FlyRotary] Re: Hey Neil, >>>> >>>> >>>> >>>> Bobby, >>>> >>>> Yes I have the wide band 02, but when I used the >>>> microtech which was the reason I ditched it it was to me impossible to= tune >>>> properly. Then Microtech refused to answer phone calls or were gone t= o a >>>> drag race somewhere--- all queries were to be done by internet. With >>>> microtech as I said before the mixture knob did nothing except occupy >>>> another hole in the dash. EGTs in excess of 1850 degrees were easily >>>> reached. >>>> >>>> Long story short I left Microtech and bought the fueltech. Much easie= r >>>> to tune and actually have backup as required. Did not add an EGT as >>>> nothing seemed to change with the microtech, so simply slept better no= t >>>> knowing what the EGT's actually were. >>>> >>>> Can add EGT to the fueltech but another $1000 AUD. May have to go tha= t >>>> way as intend to get to 8000 RPM if required >>>> >>>> Today at low 30's degrees my water was on the thermostat at 95 degrees >>>> C and oil around 90. Saw your temps and had a heart attack until I >>>> realised you are farenheit. >>>> >>>> What turbo do you run and have you an intercooler? >>>> >>>> Will get to check out the ag turbos shortly as there are hundreds of >>>> them around here. Will get to weigh one shortly. >>>> >>>> Neil. >>>> >>>> On 12/5/2018 9:00 AM, Bobby J. Hughes bhughes@qnsi.net wrote: >>>> >>>> Neil, >>>> >>>> >>>> >>>> Do you have a wideband O2? I have to run in the low 11=E2=80=99s at f= ull power >>>> and under boost for takeoff. 7000 rpm / 30-48=E2=80=9D MP to keep egt= =E2=80=99s around >>>> 1600F. Typical cruise between 4800 =E2=80=93 5200 rpm / <30 =E2=80=9C= MP with F/A 15.8:1 >>>> brings EGT=E2=80=99s into the 1500=E2=80=99s. With an intercooler I wo= uld expect F/A in the >>>> 12=E2=80=99s will keep egt=E2=80=99s below 1600 but that=E2=80=99s jus= t a guess. I have seen EGT=E2=80=99s >>>> at or below 1475F on cold days at altitude. The only time I run >>>> stoichiometric is in the pattern and low MP. >>>> >>>> >>>> >>>> *Information from Pro Formula Mazda * >>>> >>>> >>>> >>>> *Engine Vitals: Exhaust Gas Temperatures *Exhaust Gas Temperatures >>>> (EGTs) are the second most important tuning and troubleshooting channe= l >>>> next to Lambda. EGTs reflect on the injector balance between the front= and >>>> rear rotor Reflects misfires through high readings accompanied by norm= al >>>> lambda Decline in engine performance can be evidenced by the rate of >>>> temperature acceleration between the rotors during a long pull =E2=80= =93 gapping >>>> Emphasis needs put on the condition of the EGTs =E2=80=93 low reading = sensors are >>>> beginning to fail. In order to have an accurate assessment of the >>>> performance, EGT sensors must be replaced often. Generally, one EGT se= nsor >>>> is used per rotor. One sensor bung should be welded on the each the ou= ter >>>> exhaust pipes 3=E2=80=9D from the header flange (the center pipe usual= ly does not >>>> receive a sensor). The sensor depth should be enough to where the tip = of >>>> the sensor is in the centerline of the exhaust flow. *Operational >>>> Range: Front Rotor: 1450F =E2=80=93 1600F, Rear Rotor: 1400F =E2=80=93= 1550F* >>>> >>>> >>>> >>>> >>>> >>>> *Engine Vitals: Lambda * >>>> >>>> Lambda is the measure of the amount of oxygen in the exhaust stream. >>>> The value expressed is a percentage of the stoichiometric air/fuel rat= io >>>> 14.7:1. >>>> >>>> Air/fuel ratio can be calculated by multiplying the lambda value >>>> monitored by data system by 14.7 >>>> >>>> (ex: .90 Lambda translates as (.9 x 14.7 =3D )13.23 Air/fuel ratio >>>> >>>> *Operating Range =3D .87 - .91, aim for .90* >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> Bobby >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net >>>> ] >>>> *Sent:* Tuesday, December 04, 2018 1:30 PM >>>> *To:* Rotary motors in aircraft >>>> *Subject:* [FlyRotary] Re: Hey Neil, >>>> >>>> >>>> >>>> Ok, interesting stuff, but how do you keep the exhaust temp below 1600 >>>> degrees without losing a lot of power? I no longer have an EGT as it = just >>>> worried me with 1800 degrees and the cost of burnt off egt probes. Fr= om >>>> memory 1600 degrees goes out the window at about 6000 rpm or less? >>>> >>>> Neil. >>>> >>>> >>>> >>>> On 12/4/2018 2:30 AM, Jeff Whaley jwhaley@datacast.com wrote: >>>> >>>> Hi Andrew, I know next to nothing about turbo technology so have staye= d >>>> clear of them; IIRC this is the first time I=E2=80=99ve heard of using= a turbo from >>>> the agricultural industry and advice to stay clear of the automotive t= ype >>>> ... seems to make sense =E2=80=93 tractors use turbos that last for de= cades. >>>> >>>> Jeff (13B, RD1-C, 144 hrs) >>>> >>>> >>>> >>>> *From:* >>>> *Sent:* December-03-18 5:14 AM >>>> *Subject:* Re: [FlyRotary] Re: Hey Neil, >>>> >>>> >>>> >>>> Neil, Type Turbo selection Into search of flyrotary archives, >>>> you=E2=80=99ll get about 30 posts from 2002 to 13 that are worth readi= ng, other >>>> searches will give more. >>>> >>>> >>>> >>>> Basically you want something the size of a T04 60-1, keep the A/R >1, >>>> something like 1.15 or 1.30 >>>> >>>> T04=E2=80=99s are plentiful from all the older diesels like 2wd tracto= rs from >>>> last century. you probably got a few parked up around you that will st= ill >>>> be servicable. If you can find one without a intercooler on it, chance= s are >>>> that it might have the right compressor. Otherwise they are easy to ch= ange. >>>> >>>> Steer clear of automotive turbo=E2=80=99s, they will overspeed at alti= tude & >>>> disintegrate, need waste gates & blow off valves. Stuff thats not requ= ired >>>> on an aeroplane. >>>> >>>> >>>> >>>> When installing. Put a normally open solonoid valve in the oil supply >>>> line. Allows you to close the oil supply if the turbo blows its seal. >>>> >>>> >>>> >>>> Always bugged me why turbo shops charge so much for such a simple part= . >>>> >>>> >>>> >>>> Andrew >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> -- >>>> >>>> Homepage: http://www.flyrotary.com/ >>>> >>>> Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/= List.html >>>> >>>> >>> >>> Virus-free. >>> www.avast.com >>> >>> >> -- >> Regards Andrew Martin Martin Ag >> >> --00000000000084a031057cf0b92a Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Turbo 8.8 kgs. Mine came off a ford 666t motor that we sw= apped out in one of the tractors. Haven't pulled it apart yet to measur= e it for specs. The diesel flows about the same amount of gas as the 20b so= guess it will just spin slower on the 13b. Will try to set up a flow bench= to test it for enough boost.
Andrew

On Fri, 14 Dec. 2018, 5:09 am Neil Un= ger 12348ung@gmail.com <flyrotary@lan= caironline.net wrote:
=20 =20 =20

Andrew,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0 yeah, my probes were only 2 inches from the port and melted quite nicely.=C2=A0 All with the microtech ECU which was a fair "illegitimate" to tune.=C2=A0 I tend to suspect that t= he min dist should be 4 inches or more.=C2=A0 That turbo you suggest -- it was fitted to nearly all IH machinery,=C2=A0 even the old 1480!=C2=A0 Doe= s that go back!=C2=A0 Do you have any idea as to its weight?=C2=A0 Neil.

On 12/10/2018 8:48 PM, Andrew Martin andrew@martinag.com= .au wrote:
=20

Neil. others will know lots more than me as I'm still trying to work this engine out.
I don't really have enough data to quote reliable numbers, But last flight the data recorder showed egt 850-950c upto 1030c all at same rpm's 2200-2300 prop rpm (2.85:1 reduction), seems the egt's are more a factor of Afr's than rpm with the cooler temps when afr <12.5, mid range when afr > 16, high temps afr between 13-16:1
Have now lost 3 egt sensors, originally all placed 50mm from port. just too close me thinks. next lot will be further away but this will place them in the tube where gas from both rotors are mixed so not sure if I'll get individual rotor temps or if that really matters anyway.
Andrew


On Mon, Dec 10, 2018 at 3:34 PM Neil Unger 12348ung@gmail.com <flyrotary@lancaironline.net> wrote:

Andrew,=C2=A0 Just what EGTs do you see at what revs?=C2=A0 = Neil.

On 12/10/2018 10:03 AM, Andrew Martin andrew@martinag.com.au wr= ote:
Neil, In Aus I=E2=80=99ve found Justraceparts.com in Qld good for quality sensors, their Egt sensors are $26 rated to 1300c. Have not tried their instrument display though as I just connect to my Efis & Em2.
Andrew

On Mon, 10 Dec 2018 at 6:24 am, Charlie England ceengland7@gmail.com <flyrotary@lancairon= line.net> wrote:
Who was it on the list that was using a Maximite for instrumentation?=C2=A0 Shouldn't be too difficu= lt to add a temperature reference & order Chinese probes from ebay.=C2=A0

Charlie

3D"" Virus-free. www.avast.com

On Sun, Dec 9, 2018 at 3:30 PM Neil Unger 12348ung@gmail.com <flyrotary@lancai= ronline.net> wrote:

Bobby,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Only = reason for an addition to the fueltech is neatness, but at that cost a stand alone EGT is attractive.Currently investigating as freight is the killer from the USA.=C2=A0 Need = a local supplier,

Neil.

On 12/10/2018 8:08 AM, Bobby J. Hughes bhughes@qnsi.net wrote:

Neil,

=C2=A0

I have flown an Eaton MP90 4th gen super charger for a little over 500 hours. No intercooler with the super charger. Turbo FWF is in the works and will have an intercooler. I needed a wider compressor map at a lower PR for takeoff than the TO4-50 . I ended up purchasing a Garret GT3076R w/ Tial=C2=A0 1.06 SS housing. I would ha= ve preferred a journal bearing turbo but this one is ball bearing.

=C2=A0

Do you have a reason for added EGT=E2=80=99s= to the fueltech vs an aircraft engine monitor / efis?

=C2=A0

=C2=A0

Bobby

=C2=A0

=C2=A0

=C2=A0

=C2=A0

=C2=A0

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Saturday, December 08, 2018 2:47 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Hey Neil,

=C2=A0

Bobby,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Yes I ha= ve the wide band 02, but when I used the microtech which was the reason I ditched it it was to me impossible to tune properly.=C2=A0 Th= en Microtech refused to answer phone calls or were gone to a drag race somewhere--- all queries were to be done by internet.=C2=A0 With microtech as I said before the mixture knob did nothing except occupy another hole in the dash.=C2= =A0 EGTs in excess of 1850 degrees were easily reached.

Long story short I left Microtech and bought the fueltech.=C2=A0 Much easier to tune and actually have backup as required.=C2=A0 Did not add an EGT as nothi= ng seemed to change with the microtech, so simply slept better not knowing what the EGT's actually were.

Can add EGT to the fueltech but another $1000 AUD.=C2=A0 May have to go that way as intend to get to 8000 RPM if required

Today at low 30's degrees my water was on the thermostat at 95 degrees C and oil around 90.=C2=A0 Saw your temps and had= a heart attack until I realised you are farenheit.

What turbo do you run and have you an intercooler?

Will get to check out the ag turbos shortly as there are hundreds of them around here.=C2=A0 Will get to weigh one shortly.

=C2=A0 Neil.

On 12/5/2018 9:00 AM, Bobby J. Hughes b= hughes@qnsi.net wrote:

Neil,

=C2=A0

Do you have a wideband O2?=C2=A0 I have to run in the low 11=E2=80=99s at full pow= er and under boost for takeoff. 7000 rpm / 30-48=E2=80=9D MP to keep egt=E2= =80=99s around 1600F. Typical cruise between 4800 =E2= =80=93 5200 rpm =C2=A0/ <30 =E2=80=9C MP wi= th F/A 15.8:1 brings EGT=E2=80=99s into the 15= 00=E2=80=99s. With an intercooler I would expect F/A in the 12=E2=80=99s will keep egt= =E2=80=99s below 1600 but that=E2=80=99s just a gu= ess. I have seen EGT=E2=80=99s at or below 1= 475F on cold days at altitude. The only time I run stoichiometric is in the pattern and low MP.

=C2=A0

Information from Pro Formula Mazda

=C2=A0

Engine Vitals: Exhaust Gas Temperatures Exhaust Gas Temperatures (EGTs) are the second most important tuning and troubleshooting channel next to Lambda. EGTs reflect on the injector balance between the front and rear rotor Reflects misfires through high readings accompanied by normal lambda Decline in engine performance can be evidenced by the rate of temperature acceleration between the rotors during a long pull =E2=80=93 gapping Emphasis ne= eds put on the condition of the EGTs =E2=80= =93 low reading sensors are beginning to fail. In order to have an accurate assessment of the performance, EGT sensors must be replaced often. Generally, one EGT sensor is used per rotor. One sensor bung should be welded on the each the outer exhaust pipes 3=E2=80=9D from the header flange (= the center pipe usually does not receive a sensor). The sensor depth should be enough to where the tip of the sensor is in the centerline of the exhaust flow. Operational Range: Front Rotor: 1450F =E2=80=93 1600F, Rear Roto= r: 1400F =E2=80=93 1550F

=C2=A0

=C2=A0

Engine Vitals: Lambda

Lambda is the measure of the amount of oxygen in the exhaust stream. The value expressed is a percentage of the stoichiometric air/fuel ratio 14.7:1.

Air/fuel ratio can be calculated by multiplying the lambda value monitored by data system by 14.7

(ex: .90 Lambda translates as (.9 x 14.7 =3D )13.23 Air/fuel ratio

Operating Range =3D .87 - .91, aim for .90

=C2=A0

=C2=A0

=C2=A0

Bobby

=C2=A0

=C2=A0

=C2=A0

=C2=A0

From: Rotary motors in aircraft [<= a href=3D"mailto:flyrotary@lancaironline.net" rel=3D"noreferrer noreferrer = noreferrer" target=3D"_blank">mailto:flyrotary@lancaironline.ne= t]
Sent: Tuesday, December 04, 2018 1:30 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Hey Neil,

=C2=A0

Ok, interesting stuff, but how do you keep the exhaust temp below 1600 degrees without losing a lot of power?=C2=A0 I no longer have an EGT as i= t just worried me with 1800 degrees and the cost of burnt off egt probes.=C2=A0 From memory 1600 degrees goes out the window at about 6000 rpm or less?=C2=A0 <= /p>

Neil.

=C2=A0

On 12/4/2018 2:30 AM, Jeff Whaley jwhaley@datacast.com wrote:

Hi Andrew, I know next to nothing about turbo technology so have stayed clear of them; IIRC this is the first time I=E2=80=99ve heard of = using a turbo from the agricultural industry and advice to stay clear of the automotive type ... seems to make sense =E2=80=93 tractors use turbos that last for decades.<= /p>

Jeff (13B, RD1-C, 144 hrs)

=C2=A0

From:
Sent: December-03-18 5:14 AM
Subject: Re: [FlyRotary] Re: Hey Neil,

=C2=A0

Neil, Type =C2= =A0 =C2=A0Turbo selection =C2=A0 =C2=A0= Into search of flyrotary archives, you=E2=80=99= ll get about 30 posts from 2002 to 13 that are worth reading, other searches will give more.

=C2=A0

Basically you want something the size of a T04 60-1, keep the A/R >1, something like 1.15 or 1.30

T04=E2=80=99s ar= e plentiful from all the older diesels like 2wd tractors from last century. you probably got a few parked up around you that will still be servicable. If you can find one without a intercooler on it, chances are that it might have the right compressor. Otherwise they are easy to change.

Steer clear of automotive turbo=E2=80=99s, they will overspeed at altitude & disintegrate, need waste gates & blow off valves. Stuff thats not required on an aeroplane.

=C2=A0

When installing. Put a normally open solonoid valve in the oil supply line. Allows you to close the oil supply if the turbo blows its seal.

=C2=A0

Always bugged me why turbo shops charge so much for such a simple part.

=C2=A0

Andrew

=C2=A0

=C2=A0



--
Homepage:=C2=A0 =
http://www.flyrotary.com/
Archive and UnSub:=C2=A0=C2=A0 http://mail.lancaironline.n=
et:81/lists/flyrotary/List.html

3D"" Virus-free. www.avast.com
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Regards Andrew Martin Martin Ag
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