X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=H+OlPNQi c=1 sm=1 tr=0 a=14GokvINpkJphSZQyGHCeQ==:117 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=MeAgGD-zjQ4A:10 a=DK2GG6i_IL4A:10 a=r77TgQKjGQsHNAKrUKIA:9 a=pGLkceISAAAA:8 a=o1OHuDzbAAAA:8 a=K52nfJwJAAAA:8 a=3oc9M9_CAAAA:8 a=Ia-xEzejAAAA:8 a=5sNqLqqMAAAA:8 a=pjdaNNIBAAAA:8 a=UKPAHat8AAAA:8 a=x-75qrxFAAAA:8 a=7g1VtSJxAAAA:8 a=0-_DW8lWmu9XnMc5NmcA:9 a=7Zwj6sZBwVKJAoWSPKxL6X1jA+E=:19 a=QEXdDO2ut3YA:10 a=L-HMpIysA1MA:10 a=U8_vu4WAf7kA:10 a=zCvOmkCl1ggA:10 a=0bY6yrGXpw4A:10 a=Qa1je4BO31QA:10 a=6Dotg1euVKUA:10 a=-E01CgcUZmQA:10 a=ApaIa7XQUSwA:10 a=gvSQh4r-fQ0A:10 a=4PR2P7QzAAAA:8 a=o7t-BV9tAIROJ5FzgU4A:9 a=vXE7h7HjMYJZtAIF:21 a=_W_S_7VecoQA:10 a=5YQ6H4ZxyGn-KoBYtt8s:22 a=WwYJ5yj1iIbjF8xAomz6:22 a=Urk15JJjZg1Xo0ryW_k8:22 a=ULvlhtsD7kEQakS0x_hP:22 a=Fc6xXSS-RxGHxrvp76Qp:22 a=pSfGKr4syse1NfsQC3dY:22 a=grOzbf7U_OpcSX4AJOnl:22 a=4dqwQCo7Po2mVW515mGf:22 From: "Finn Lassen finn.lassen@verizon.net" Received: from sonic301-31.consmr.mail.ne1.yahoo.com ([66.163.184.200] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 13183189 for flyrotary@lancaironline.net; Sat, 16 Nov 2019 08:26:04 -0500 Received-SPF: pass receiver=logan.com; client-ip=66.163.184.200; envelope-from=finn.lassen@verizon.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=verizon.net; s=a2048; t=1573910747; bh=qD+5v2VY/a8eOd72U38PQpUjYk5z5+QM6BcvNsHSSZQ=; h=Subject:To:References:From:Date:In-Reply-To:From:Subject; b=Y8yBJxQsORn9SYUozw0nAiyG+gRmSTuqCvHcebZhxYpERLg4lgE23OAKpRbhVHy9eOFCg4sPoB/4CZnGDzJlZKENvNSmRoU0vv+RfdZ5o3VNRMbv8UAVVEEomhnbTvGujygvQWKMPru8nWphaouVu+Hz82f1qGiUSWZR1B5NtSh0bgyQB+chpnHjoKlji+0WMEARiKc3ihbJKK1Jighuf1iS4f5c+AiSLIvlaxY0JOmVJ/5UGX6J+A6K68/3lZyQwU/UmwsObnpT4TUL0xL5SIsRTEBou8GkyGFQa3Ifw14z2ehMMJXEFuJZ1OW1C4tFzHQPHO33Re02binhAvyU/g== X-YMail-OSG: qIEuKWIVM1nf0TkZfpzaaifLKeWT3wOon3xIDyB2wEwxLEPZKPt619CeY1aB.xc KwtHiAH8y1gJM2O13vloVFVBY6BnJIDtUjAg6RhThoguE52cSuM5sQKf8L0IdSPQzbZAfTMSLTBk 55TKdvje5MJJYOiduI9yv272ZkdYj_wdlJjweJiwVtAW.xUbvx7y_9YjwyGIY72s0i0pKbBSfOgj TBwmwKQ6Uv8Sg37l1eZ8cDMBe4IV3rh9dYKLrtQ8vKEH7ODPndQAuB9ZbAhf1TFikHo31j26Y298 gg0bKieZy90JOfwrZG7ovGBp3YxmNlGXbDz9gyOFUmthRTPHAORLBU68GaOQilNZO5l0N7sn3cbk g4i_DN_hgxoYf2bx4mPnL.4LphUP9qZc3srz19RDFPyZPU8ZnnuSYxibB0t91RWMnZT9nb18y39w YltM0nUz1l4g4aY6TiKirXzRMB.ISWE3I.uYkrOgLW5SZJ7GeK8RyHexbcTv.xLo1WL2slGw92xj rS5fdYEe4_ZkafkDJ9kaz.yVl5OTe6zo9Y.mWnA9arCH00pL2nEMQefsQoQnNWvsX2fN_yuMHRqr YSScTeAVQvyWxgjv1yebI7iYWklBSektUfsuH6i5ISXQWOMzMM9zgBOxFVe7Lwe5lvJZU6YdGn4F ocPfjLlNLzMDs1DRmFqXymAUoCcBx534QOanDVKhW3IGq2PLLFHwb2tigqrpheBAZYlaa_bcIroN 8MTnNs.o28JIA9qRhb4nh_NLY.yxLCWcWPSYAwaiIvJUOuWOkIXcJRaciMckAUPCGi38RHX8N9ON dC.JVMNaYo8UOnlwvBamx0Yt7VXal29Szl9OSYEgwcDVOk9OI5J3LiKQqjhUASgMOXLkHlsY6Zc5 HChLfSVm5IThZY7NQhhIirzl8MxiszjSpH3lzrDXudIh8Kn0iLkCxs75hcEllg5vxofTSoy8Fwxr 9ojlf5ePnRbybyNDQ1zeGYr0up7tL10VCtRqx5Qy5dWTV1fHSrmYFzm08lD8TECrT8JTZNINqYms jFAUW2YQXd730ZRq53f_LvFXVCrIRjKcmoGNCTJy1iQE3d6kyoZX4NfaEsBawvpQssR3u08sV45D 4lUgYpgIBERwoV0UUfeWC9nrNfk1vg01E3Ltfhj0_xLsrbnWjEoK4iZb8d.2rcZJJuxh6IGZ1Vtp prf6ZRMS9uCRZlwzA2Pa0zOBEe.Krn6HmSVqSCXi2OzYdQHW8qHKET3eF.Vqo0sgfCWup9.d0uYr nKgKU87Xw_Yc1bjuhICnGcPOKlCEKRRj6cByR_AfdPGPwOttoYw5fHGL2CkD4RRnNC90nwhdu2Ij OjhANtXqnGwa4sjHlGFvtr2kbYTKEMhdOASu3m2FMHPqyWaFooKsQU19W6LEFX1ombdvvRDaS4Sd Kw3axaFbE Received: from sonic.gate.mail.ne1.yahoo.com by sonic301.consmr.mail.ne1.yahoo.com with HTTP; Sat, 16 Nov 2019 13:25:47 +0000 Received: by smtp416.mail.bf1.yahoo.com (Oath Hermes SMTP Server) with ESMTPA ID 09f56991ba8186198312e6528a5fc8a5; Sat, 16 Nov 2019 13:25:41 +0000 (UTC) Subject: Re: [FlyRotary] Re: Renesis oil pressure To: Rotary motors in aircraft References: Message-ID: Date: Sat, 16 Nov 2019 08:25:39 -0500 User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------12189624651E2976931EAC8E" Content-Language: en-US X-Mailer: WebService/1.1.14728 hermes Apache-HttpAsyncClient/4.1.4 (Java/1.8.0_181) Content-Length: 31641 This is a multi-part message in MIME format. --------------12189624651E2976931EAC8E Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Thanks Charlie, That makes sense. Finn On 11/15/2019 9:43 PM, Charlie England ceengland7@gmail.com wrote: > For heat exchanger pre/post temps, if you use the same measurement > technique on both ends, the delta-T should be accurate. I plan to > mount my cooling analysis probes on the outside of the tube, as you're > describing. Regular oil & water temps for the engine itself will be > measured at the 'normal' points on the engine. > > I have a bunch of unused CHT/EGT inputs in my EFIS' built-in engine > monitor, so I'll probably just roll my own probes using J & K > thermocouple wire. I'll get free data recording, too. :-) > > Charlie > > On 11/15/2019 5:54 PM, Finn Lassen finn.lassen@verizon.net wrote: >> Thanks Matt. >> >> No clue why I assumed the OMP got the oil before the cooler. So, >> would have to insert some kind of adapter between engine and cooler. >> Right now it's the 10mm (?) to AN8 fitting and a 12" run to the >> 25-row cooler under the engine. >> >> Main reason I wanted to also monitor pressure before the cooler was >> to see what kind of pulses it's exposed to. But if it's only 80 psi >> I'm not as worried.?? I have no idea what year or series engine it is. >> How do I tell? It's a NA 4-port. It does have the rear (same end as >> oil filter pad) regulator. When I had the regulator out to dill/tap >> the PSRU oil return hole in the rotor housing base, I did not notice >> if it was possible to shim it. >> >> Definitely will want before/after oil cooler temps to see how well >> the cooler works. >> >> Same with before/after radiators. Any clue what temperature drop is >> from fluid to outside of alum or brass fittings? If negligible it'll >> be easy to glue/strap a TMP36 to fittings. >> >> Finn >> >> On 11/15/2019 3:47 PM, Matt Boiteau mattboiteau@gmail.com wrote: >>> Based on racing beat's page, the first series of RX8 is 80psi. The >>> second series does away with the rear pressure reg and is rated to >>> 115psi. >>> >>> http://www.racingbeat.com/mazda/performance/rotary-tech-tips/oil-tips.html >>> >>> Finn, it's a good idea to tap the oil pan to get it's temperature. >>> It usually is around 30F hotter then incoming oil, then you get a >>> true reading of how hot the oil is. The OMP pressure will be after >>> the regulators, so no point going there. The stock location to get >>> oil pressure is @ #8 in the picture below. Where it goes out to the >>> oil radiator (just above #9) would be your best spot for a >>> pre-cooler pressure, but I don't think that pressure is worth >>> knowing anyways. >>> >>> Those sensors from Ebay look to be the same I am using. S.S.,1/8npt >>> and comes with pigtail. Can't beat the price, and they seem to be >>> working well so far. >>> >>> - Matt Boiteau >>>> >>>> On 2019-11-15 12:20:27 PM, lehanover lehanover@aol.com >>>> wrote: >>>> >>>> Any early regulator can be shimmed to over 100 PSI. We ran 100 PSI >>>> with Redline 40 weight.?? RX-8 came stock with 110 PSI. Early valves >>>> can be dismantled?? and shimmed to anything you want. RX-8 valves >>>> are welded shut. Most racers have a drawer or box of early valves. >>>> Check your local SCCA for member help. >>>> Lynn E. Hanover >>>> >>>> In a message dated 11/15/2019 10:36:08 AM Eastern Standard Time, >>>> flyrotary@lancaironline.net writes: >>>> >>>> 28? >>>> >>>> Anyway, thank you all for your replies. Sounds like a 150 psi >>>> sensor will be the safest. >>>> >>>> I have no plans to tear down the supposedly brand new Renesis, >>>> so for now no modifications. >>>> >>>> Thinking about a before cooler pressure sensor too. I suppose >>>> the only (easy) option is to drill and tap the oil metering >>>> pump supply hole (which I've already plugged)? >>>> >>>> I would like to also have a before oil cooler temperature >>>> sensor. I guess I need to find a spot in the oil pan? >>>> >>>> I suppose a 30 psi sensor is adequate for water pressure >>>> (assuming I don't go with Evans non-pressurized system)? >>>> >>>> Trying to source sensors, I looked in the places I had >>>> purchased them decades ago (Newark, DigiKey, Allied) and was >>>> dismayed at the availability and prices. In my original RV-3 I >>>> had used the solid state MPX-5999 with barb from NXP USA. >>>> >>>> A Google search finally lead me to a posting which led me to >>>> Aircraft Spruce and a "Swift" pressure sensor. That led me to >>>> eBay where there now is a wide selection of 5V (amplified) >>>> solid state sensors with 1/8-27NPT housings. >>>> >>>> These solid state sensors have (amplified) output voltages from >>>> 0.5 to 4.5 volts with a 5 volt supply (they even come in 12V >>>> (10-25V) supply version for a bit more). >>>> Yes, your engine monitor has to subtract (offset) the bottom by >>>> 0.5 volts (0 psi = 0.5 volts). >>>> >>>> http://www.zenith.aero/forum/topics/swift-solid-state-oil-pressure-sensor >>>> >>>> https://www.ebay.com/itm/Pressure-transducer-or-sender-Stainless-Steel-for-oil-fuel-air-water-Multichoice/272759060859?hash=item3f81b4f97b???mTKFrDgAsPLl-bZmKbUTKgQ >>>> >>>> >>>> When searching note that oil pressure switches are often called >>>> sensors too. >>>> >>>> Finn >>>> >>>> On 11/15/2019 7:36 AM, Bobby J. Hughes bhughes@qnsi.net >>>> wrote: >>>> >>>> Thermal pellet and carb jets with racing beat race >>>> regulator. Idle at 28 warm and 88-92 psi at 4800-7000 rpm.?? >>>> >>>> Bobby?? >>>> >>>> Sent from my iPhone >>>> >>>> On Nov 15, 2019, at 2:43 AM, Matt Boiteau >>>> mattboiteau@gmail.com >>>> >>>> wrote: >>>> >>>> ??? >>>> I installed an RX7 rear regulator and shimmed the front >>>> reg with 2 washers. Also installed thermal pellet and >>>> weber jets in the e-shaft. Average around 110-115psi >>>> during cruise, so I went with an 150psi sensor. >>>> >>>> https://www.atkinsrotary.com/store/Competition-Eccentric-Shaft-Oil-and-Weber-Jet-Kit-ARE103.html >>>> https://www.atkinsrotary.com/store/79-11-Rx7-and-Rx8-Increased-Oil-Pressure-Kit-ARE401.html >>>> https://www.atkinsrotary.com/store/86-11-Rx7-and-Rx8-Atkins-Thermal-Pellet-ARE50.html?category_id=1275 >>>> >>>> - Matt Boiteau >>>> >>>> On 2019-11-14 11:53:30 PM, Neil Unger >>>> 12348ung@gmail.com >>>> >>>> wrote: >>>> >>>> Fin,?? My renesis starts cold at 150 PSI.?? I let >>>> it idle at 2200 rpm >>>> until after a few minutes it settles to 80 psi (plus). >>>> >>>> Neil. >>>> >>>> On 11/15/2019 10:45 AM, Finn Lassen >>>> finn.lassen@verizon.net >>>> wrote: >>>> > I'm starting to look at engine monitor sensors >>>> for my RV-4. >>>> > >>>> > In his Renesis report, Tracy mentioned 100 psi >>>> oil pressures. Not >>>> > clear if they dropped after the engine got some >>>> hours on it. >>>> > >>>> > What kind of oil pressures are you seeing? >>>> > >>>> > Should I go with a 150 psi or a 100 psi pressure >>>> sensor? >>>> > >>>> > Finn >>>> > >>>> > >>>> > -- >>>> > Homepage:?? http://www.flyrotary.com/ >>>> > Archive and UnSub: >>>> > >>>> http://mail.lancaironline.net:81/lists/flyrotary/List.html >>>> >>>> >>>> -- >>>> Homepage: http://www.flyrotary.com/ >>>> Archive and UnSub: >>>> http://mail.lancaironline.net:81/lists/flyrotary/List.html >>>> >>>> >>>> >>> >>> >>> -- >>> Homepage:http://www.flyrotary.com/ >>> Archive and UnSub:http://mail.lancaironline.net:81/lists/flyrotary/List.html >> >> > --------------12189624651E2976931EAC8E Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit
Thanks Charlie,

That makes sense.

Finn

On 11/15/2019 9:43 PM, Charlie England ceengland7@gmail.com wrote:
For heat exchanger pre/post temps, if you use the same measurement technique on both ends, the delta-T should be accurate. I plan to mount my cooling analysis probes on the outside of the tube, as you're describing. Regular oil & water temps for the engine itself will be measured at the 'normal' points on the engine.

I have a bunch of unused CHT/EGT inputs in my EFIS' built-in engine monitor, so I'll probably just roll my own probes using J & K thermocouple wire. I'll get free data recording, too. :-)

Charlie

On 11/15/2019 5:54 PM, Finn Lassen finn.lassen@verizon.net wrote:
Thanks Matt.

No clue why I assumed the OMP got the oil before the cooler. So, would have to insert some kind of adapter between engine and cooler. Right now it's the 10mm (?) to AN8 fitting and a 12" run to the 25-row cooler under the engine.

Main reason I wanted to also monitor pressure before the cooler was to see what kind of pulses it's exposed to. But if it's only 80 psi I'm not as worried.?? I have no idea what year or series engine it is. How do I tell? It's a NA 4-port. It does have the rear (same end as oil filter pad) regulator. When I had the regulator out to dill/tap the PSRU oil return hole in the rotor housing base, I did not notice if it was possible to shim it.

Definitely will want before/after oil cooler temps to see how well the cooler works.

Same with before/after radiators. Any clue what temperature drop is from fluid to outside of alum or brass fittings? If negligible it'll be easy to glue/strap a TMP36 to fittings.

Finn

On 11/15/2019 3:47 PM, Matt Boiteau mattboiteau@gmail.com wrote:
Based on racing beat's page, the first series of RX8 is 80psi. The second series does away with the rear pressure reg and is rated to 115psi.

http://www.racingbeat.com/mazda/performance/rotary-tech-tips/oil-tips.html

Finn, it's a good idea to tap the oil pan to get it's temperature. It usually is around 30F hotter then incoming oil, then you get a true reading of how hot the oil is. The OMP pressure will be after the regulators, so no point going there. The stock location to get oil pressure is @ #8 in the picture below. Where it goes out to the oil radiator??(just above #9)??would be your best spot for a pre-cooler pressure, but I don't think that pressure is worth knowing anyways.??

Those sensors from Ebay look to be the same I am using. S.S.,1/8npt and comes with pigtail. Can't beat the price, and they seem to be working well so far.

- Matt Boiteau

On 2019-11-15 12:20:27 PM, lehanover lehanover@aol.com <flyrotary@lancaironline.net> wrote:

Any early regulator can be shimmed to over 100 PSI. We ran 100 PSI with Redline 40 weight.?? RX-8 came stock with 110 PSI. Early valves can be dismantled?? and shimmed to anything you want. RX-8 valves are welded shut. Most racers have a drawer or box of early valves. Check your local SCCA for member help.
Lynn E. Hanover

In a message dated 11/15/2019 10:36:08 AM Eastern Standard Time, flyrotary@lancaironline.net writes:

28?

Anyway, thank you all for your replies. Sounds like a 150 psi sensor will be the safest.

I have no plans to tear down the supposedly brand new Renesis, so for now no modifications.

Thinking about a before cooler pressure sensor too. I suppose the only (easy) option is to drill and tap the oil metering pump supply hole (which I've already plugged)?

I would like to also have a before oil cooler temperature sensor. I guess I need to find a spot in the oil pan?

I suppose a 30 psi sensor is adequate for water pressure (assuming I don't go with Evans non-pressurized system)?

Trying to source sensors, I looked in the places I had purchased them decades ago (Newark, DigiKey, Allied) and was dismayed at the availability and prices. In my original RV-3 I had used the solid state MPX-5999 with barb from NXP USA.

A Google search finally lead me to a posting which led me to Aircraft Spruce and a "Swift" pressure sensor. That led me to eBay where there now is a wide selection of 5V (amplified) solid state sensors with 1/8-27NPT housings.

These solid state sensors have (amplified) output voltages from 0.5 to 4.5 volts with a 5 volt supply (they even come in 12V (10-25V) supply version for a bit more).
Yes, your engine monitor has to subtract (offset) the bottom by 0.5 volts (0 psi = 0.5 volts).

http://www.zenith.aero/forum/topics/swift-solid-state-oil-pressure-sensor

https://www.ebay.com/itm/Pressure-transducer-or-sender-Stainless-Steel-for-oil-fuel-air-water-Multichoice/272759060859?hash=item3f81b4f97b???mTKFrDgAsPLl-bZmKbUTKgQ

When searching note that oil pressure switches are often called sensors too.

Finn

On 11/15/2019 7:36 AM, Bobby J. Hughes bhughes@qnsi.net wrote:
Thermal pellet and carb jets with racing beat race regulator. Idle at 28 warm and 88-92 psi at 4800-7000 rpm.??

Bobby??

Sent from my iPhone

On Nov 15, 2019, at 2:43 AM, Matt Boiteau mattboiteau@gmail.com <flyrotary@lancaironline.net> wrote:

???
I installed an RX7 rear regulator and shimmed the front reg with 2 washers. Also installed thermal pellet and weber jets in the e-shaft. Average around 110-115psi during cruise, so I went with an 150psi sensor.

- Matt Boiteau

On 2019-11-14 11:53:30 PM, Neil Unger 12348ung@gmail.com <flyrotary@lancaironline.net> wrote:

Fin,?? My renesis starts cold at 150 PSI.?? I let it idle at 2200 rpm
until after a few minutes it settles to 80 psi (plus).

Neil.

On 11/15/2019 10:45 AM, Finn Lassen finn.lassen@verizon.net wrote:
> I'm starting to look at engine monitor sensors for my RV-4.
>
> In his Renesis report, Tracy mentioned 100 psi oil pressures. Not
> clear if they dropped after the engine got some hours on it.
>
> What kind of oil pressures are you seeing?
>
> Should I go with a 150 psi or a 100 psi pressure sensor?
>
> Finn
>
>
> --
> Homepage:?? http://www.flyrotary.com/
> Archive and UnSub:
> http://mail.lancaironline.net:81/lists/flyrotary/List.html

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Homepage: http://www.flyrotary.com/
Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html 




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