X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=G+5i7Os5 c=1 sm=1 tr=0 a=/yKVBM/CKBUu5kGmEPea0Q==:117 a=tJvibCFsorSNjpxMvkubbw==:17 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=xqWC_Br6kY4A:10 a=J70Eh1EUuV4A:10 a=FpeV3yXDDPAvnfcLH5wA:9 a=G4HW8ZfWTMENstiB:21 a=S1PnvTjf_AJ2z6Oc:21 a=QEXdDO2ut3YA:10 a=yMhMjlubAAAA:8 a=SSmOFEACAAAA:8 a=uYbfxicy4mxU7iRqcPMA:9 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 From: "Dennis Haverlah clouduster@austin.rr.com" Received: from [107.14.73.231] (HELO dnvrco-cmomta01.email.rr.com) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 12960493 for flyrotary@lancaironline.net; Sun, 15 Sep 2019 19:36:07 -0400 Received-SPF: pass receiver=logan.com; client-ip=107.14.73.231; envelope-from=clouduster@austin.rr.com Received: from [IPv6:::ffff:192.168.1.198] ([70.113.118.46]) by cmsmtp with ESMTPA id 9e3WipXZfP0889e3ZiMucn; Sun, 15 Sep 2019 23:35:50 +0000 MIME-Version: 1.0 To: Rotary motors in aircraft Subject: RE: [FlyRotary] Re: Evap cores and James Cowl Date: Sun, 15 Sep 2019 18:35:55 -0500 Importance: normal X-Priority: 3 In-Reply-To: References: Content-Type: multipart/alternative; boundary="_B79BEE32-7FB9-4D22-902D-85302B791D17_" X-CMAE-Envelope: MS4wfB4ZWAp3UMjsIjL7qEAcNxyU1JKUqiQX9vvU54DPMKwl1tdalx9pdQzTLL+iTuZSFWuM8hIntkEZ9uQLscrTmZW+EJVz2P7HgyDrp0A1UTbsGZ1/QBqy HUQmAmGRHHoym2WgFAq/Dg37Z7MK1US6rJGkJDbE7bMMEQxCceoitn8iL9oFxRK8skuvNPbcpQ5LhsUKN56hPW35IE+qZqYV9RQ= Message-ID: --_B79BEE32-7FB9-4D22-902D-85302B791D17_ Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Finn, Sorry for the late reply to your 9/7/19 post. I used a James cowl on my RV 7 A with a Renesis 4 port. My water radiat= or was a Scirocco drag race radiator =E2=80=93 core measures 13 in wide x = 22 in long and 2.5 inch thick for 715 cubic inches. For the oil I used a = stock RX-7 oil cooler (2.0 inch thick) with the bypass plugged. The radiat= ors are mounted side by side under the engine motor mount. The aft end of = the radiator assembly is against the cowl bottom and the radiator assembly= is bolted to the motor mount structure at a 30 deg angle with the high end= just above the James cowl air inlet under the spinner. The air flows in= under the radiator assy. up through the rads and out at the firewall. I cut a small opening above the James cowl cooling air inlet to use for e= ngine combustion air. In the cowl under the radiator assembly I built a pi= nched duct to try to distribute the airflow evenly through the radiators. (= Probably could improve it) If it is real hot when I takeoff I reduce thro= ttle as required to control my oil temp to not exceed 220 F. My water temp = is usually 10 deg cooler than the oil temp. I have taken off fully loaded = when the air temp. was 105 deg F. and climbed at 20 inches manifold pressur= e to control temps. =20 I have about 860 hours on the engine. The doner car had about 9,000 miles = on it when it was wrecked. The engine has never had the rotor assembly tak= en apart. Most of my flying now is 10 minute flights from 40XS to GTU to p= lay tennis 3 - 4 times a week. --_B79BEE32-7FB9-4D22-902D-85302B791D17_ Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"

Finn,

&= nbsp;

Sorry for the late reply to your 9/7/19= post.

I= used a James cowl on my RV 7 A with a Renesis 4 port.=C2=A0=C2=A0 My water= =C2=A0radiator was a Scirocco drag race radiator =E2=80=93 core measures = =C2=A013 in wide x 22 in long and 2.5 inch thick for 715 =C2=A0cubic inches= .=C2=A0 For the oil I used a stock RX-7 oil cooler (2.0 inch thick) with th= e bypass plugged.=C2=A0 The radiators are mounted side by side under= the engine motor mount.=C2=A0 The aft end of =C2=A0the radiator assembly i= s against the cowl bottom and the radiator assembly is bolted to the motor = mount structure at a 30 deg angle with the high end just above the James co= wl air =C2=A0inlet under the spinner.=C2=A0 =C2=A0The air flows in under th= e radiator assy. up through the rads and out at the firewall.

I cut a small openi= ng above the James cowl =C2=A0cooling air inlet to use for engine combustio= n air.=C2=A0 In the cowl under the radiator assembly I built a pinched duct= to try to distribute the airflow evenly through the radiators. (Probably c= ould improve it)=C2=A0=C2=A0 If it is real hot when I takeoff I reduce thro= ttle as required to control my oil temp to not exceed 220 F. My water temp = is usually 10 deg cooler than the oil temp.=C2=A0 I have taken off fully lo= aded when the air temp. was 105 deg F. and climbed at 20 inches manifold pr= essure to control temps.=C2=A0

I have about 860 hours on the engine.=C2=A0 The done= r car had about 9,000 miles on it when it was wrecked.=C2=A0 The engine has= never had the rotor assembly taken apart.=C2=A0 Most of my flying now is 1= 0 minute flights from 40XS to GTU to play tennis 3 - 4 times a week.

= --_B79BEE32-7FB9-4D22-902D-85302B791D17_--