---------------------------------------------------------- Engines-List Digest Archive --- Total Messages Posted Tue 07/22/08: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:38 AM - Superior vs. Lycoming; XP-400 vs. IO-390 (Matt Dralle) 2. 09:48 AM - Re: Superior vs. Lycoming; XP-400 vs. IO-390 (Monty Barrett Sr) 3. 10:03 AM - Re: Superior vs. Lycoming; XP-400 vs. IO-390 (Matt Dralle) 4. 12:56 PM - Re: Superior vs. Lycoming; XP-400 vs. IO-390 (Monty Barrett Sr) 5. 01:34 PM - Re: Superior vs. Lycoming; XP-400 vs. IO-390 (Greg Young) ________________________________ Message 1 _____________________________________ Time: 09:38:47 AM PST US From: Matt Dralle Subject: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 Dear Listers, What is the common opinion of Superior XP engines vs. the typical Lycoming engine? In looking over the Superior web site, they have a new 220hp XP-400 engine designed around the basic IO-360 Angle Valve chassis that looks pretty nice. At $30,000 new, its $3-4k cheaper than the Lycoming IO-390 solutions and, if you believe the Superior mantra, a better designed engine in general. What is the real-world quality and reliability of Superior-built engines? Has anyone flown behind one of these new XP-400s? Has anyone Dyno'd the XP-400 to prove the 220hp claim? XP-400 Information: http://www.xp-360.com/index.asp?content=14 Avweb Article: http://www.avweb.com/news/motorhead/189629-1.html?type=pf Thanks for your insight! Matt Dralle RV-8 # 82880 ________________________________ Message 2 _____________________________________ Time: 09:48:21 AM PST US Subject: RE: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 From: "Monty Barrett Sr" BPE has dyno tested the XP-400 engine. Monty Barrett BPE, Inc. -----Original Message----- From: owner-engines-list-server@matronics.com [mailto:owner-engines-list-server@matronics.com] On Behalf Of Matt Dralle Sent: Tuesday, July 22, 2008 10:36 AM Subject: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 Dear Listers, What is the common opinion of Superior XP engines vs. the typical Lycoming engine? In looking over the Superior web site, they have a new 220hp XP-400 engine designed around the basic IO-360 Angle Valve chassis that looks pretty nice. At $30,000 new, its $3-4k cheaper than the Lycoming IO-390 solutions and, if you believe the Superior mantra, a better designed engine in general. What is the real-world quality and reliability of Superior-built engines? Has anyone flown behind one of these new XP-400s? Has anyone Dyno'd the XP-400 to prove the 220hp claim? XP-400 Information: http://www.xp-360.com/index.asp?content=14 Avweb Article: http://www.avweb.com/news/motorhead/189629-1.html?type=pf Thanks for your insight! Matt Dralle RV-8 # 82880 ________________________________ Message 3 _____________________________________ Time: 10:03:19 AM PST US From: Matt Dralle Subject: RE: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 Hi Monty, Well, that's cool. Please share the results! Matt At 09:49 AM 7/22/2008 Tuesday, you wrote: > >BPE has dyno tested the XP-400 engine. > >Monty Barrett >BPE, Inc. > >-----Original Message----- >From: owner-engines-list-server@matronics.com >[mailto:owner-engines-list-server@matronics.com] On Behalf Of Matt >Dralle >Sent: Tuesday, July 22, 2008 10:36 AM >To: engines-list@matronics.com >Subject: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 > > > >Dear Listers, > >What is the common opinion of Superior XP engines vs. the typical >Lycoming engine? > >In looking over the Superior web site, they have a new 220hp XP-400 >engine designed around the basic IO-360 Angle Valve chassis that looks >pretty nice. At $30,000 new, its $3-4k cheaper than the Lycoming IO-390 >solutions and, if you believe the Superior mantra, a better designed >engine in general. > >What is the real-world quality and reliability of Superior-built >engines? > >Has anyone flown behind one of these new XP-400s? > >Has anyone Dyno'd the XP-400 to prove the 220hp claim? > > XP-400 Information: http://www.xp-360.com/index.asp?content=14 > > Avweb Article: >http://www.avweb.com/news/motorhead/189629-1.html?type=pf > >Thanks for your insight! > >Matt Dralle >RV-8 # 82880 > > Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551 925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email http://www.matronics.com/ WWW | Featuring Products For Aircraft ________________________________ Message 4 _____________________________________ Time: 12:56:09 PM PST US Subject: RE: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 From: "Monty Barrett Sr" Matt,The data is proprietary and is not mine to share. The engine is still here for further testing and development. All I can tell you about it is that the HP is close, but not close enough. We ran a WOT- RPM - BHP curve, a prop load curve, and a mixture sweep with 2 different injection systems. The bore and stroke is 5 1/4 X 4 5/8 respectively. The compression ratio is 8.5:1. The engineer who was working on that with SAP is no longer there. MB -----Original Message----- From: owner-engines-list-server@matronics.com [mailto:owner-engines-list-server@matronics.com] On Behalf Of Matt Dralle Sent: Tuesday, July 22, 2008 11:00 AM Subject: RE: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 Hi Monty, Well, that's cool. Please share the results! Matt At 09:49 AM 7/22/2008 Tuesday, you wrote: > >BPE has dyno tested the XP-400 engine. > >Monty Barrett >BPE, Inc. > >-----Original Message----- >From: owner-engines-list-server@matronics.com >[mailto:owner-engines-list-server@matronics.com] On Behalf Of Matt >Dralle >Sent: Tuesday, July 22, 2008 10:36 AM >To: engines-list@matronics.com >Subject: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 > > > >Dear Listers, > >What is the common opinion of Superior XP engines vs. the typical >Lycoming engine? > >In looking over the Superior web site, they have a new 220hp XP-400 >engine designed around the basic IO-360 Angle Valve chassis that looks >pretty nice. At $30,000 new, its $3-4k cheaper than the Lycoming IO-390 >solutions and, if you believe the Superior mantra, a better designed >engine in general. > >What is the real-world quality and reliability of Superior-built >engines? > >Has anyone flown behind one of these new XP-400s? > >Has anyone Dyno'd the XP-400 to prove the 220hp claim? > > XP-400 Information: http://www.xp-360.com/index.asp?content=14 > > Avweb Article: >http://www.avweb.com/news/motorhead/189629-1.html?type=pf > >Thanks for your insight! > >Matt Dralle >RV-8 # 82880 > > Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551 925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email http://www.matronics.com/ WWW | Featuring Products For Aircraft ________________________________ Message 5 _____________________________________ Time: 01:34:50 PM PST US Subject: Re: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 From: "Greg Young" The SAP site specs now show 220hp but at 8.7/1. Would that close the "not close enough" gap? Greg Sent via BlackBerry from T-Mobile -----Original Message----- From: "Monty Barrett Sr" Subject: RE: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 Matt,The data is proprietary and is not mine to share. The engine is still here for further testing and development. All I can tell you about it is that the HP is close, but not close enough. We ran a WOT- RPM - BHP curve, a prop load curve, and a mixture sweep with 2 different injection systems. The bore and stroke is 5 1/4 X 4 5/8 respectively. The compression ratio is 8.5:1. The engineer who was working on that with SAP is no longer there. MB -----Original Message----- From: owner-engines-list-server@matronics.com [mailto:owner-engines-list-server@matronics.com] On Behalf Of Matt Dralle Sent: Tuesday, July 22, 2008 11:00 AM Subject: RE: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 Hi Monty, Well, that's cool. Please share the results! Matt At 09:49 AM 7/22/2008 Tuesday, you wrote: > >BPE has dyno tested the XP-400 engine. > >Monty Barrett >BPE, Inc. > >-----Original Message----- >From: owner-engines-list-server@matronics.com >[mailto:owner-engines-list-server@matronics.com] On Behalf Of Matt >Dralle >Sent: Tuesday, July 22, 2008 10:36 AM >To: engines-list@matronics.com >Subject: Engines-List: Superior vs. Lycoming; XP-400 vs. IO-390 > > > >Dear Listers, > >What is the common opinion of Superior XP engines vs. the typical >Lycoming engine? > >In looking over the Superior web site, they have a new 220hp XP-400 >engine designed around the basic IO-360 Angle Valve chassis that looks >pretty nice. At $30,000 new, its $3-4k cheaper than the Lycoming IO-390 >solutions and, if you believe the Superior mantra, a better designed >engine in general. > >What is the real-world quality and reliability of Superior-built >engines? > >Has anyone flown behind one of these new XP-400s? > >Has anyone Dyno'd the XP-400 to prove the 220hp claim? > > XP-400 Information: http://www.xp-360.com/index.asp?content=14 > > Avweb Article: >http://www.avweb.com/news/motorhead/189629-1.html?type=pf > >Thanks for your insight! > >Matt Dralle >RV-8 # 82880 > > Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551 925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email http://www.matronics.com/ WWW | Featuring Products For Aircraft ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message engines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Engines-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/engines-list Browse Digests http://www.matronics.com/digest/engines-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.