KIS-List Digest Archive

Wed 01/12/11


Total Messages Posted: 1



Today's Message Index:
----------------------
 
     1. 10:36 PM - Re: Engines (Scott Stearns)
 
 
 


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    Time: 10:36:39 PM PST US
    From: Scott Stearns <sstearns2@yahoo.com>
    Subject: Re: Engines
    Hi Graham... - My IO-360 weighs about 300 pounds.- The angle valve engines are-little heavier.- The 320 is 20-30 pounds lighter.- Lycoming's website has a ch art that shows the wieghts of all their engines. - My engine makes 220+ HP at sea level, but I don't normally operate the engi ne over the 180HP-factory rating.- I usually takeoff and climb at 25" M P which is roughly 180HP.- I look at it as a 'turbo normalized' engine wi thout the turbo.- I built the engine for cross country performance at alt itude, so I'm not really looking at power at sea level as much as power at altitude.- I'm using dual P-mags for ignition and am very happy with them .- The engine doesn't need any electrical power from the airplane once it 's running which was important to me.- - I think it would be hard to beat a mid time used-320 with a top overhaul with ported heads and high compression pistons.- - Scott - --- On Tue, 1/11/11, Graham Brighton <gbrighton@skymesh.com.au> wrote: From: Graham Brighton <gbrighton@skymesh.com.au> Subject: KIS-List: Engines -Scott ...-- thx for ur reply ..was really looking for ur actual engi ne weight ...- My previous Subaru engine (156hp) gave good performance 14 0kts cruise and 1000ft per min climb @ 100kts .... but was working the engi ne pretty hard ...so went to the ej25 engine to get some extra performance gains at the same time running the engine a little easier ... inlet valve f ailure is still unexplained . - Only got- 5 hrs from that engine but was getting 2000 fpm climb etc which was great ... ( bought that engine from a Helicopter build guy who gave up on his project ... but i checked with his engine rebuild shop-and all se emed ok ) - Currant engine plan is ... I have a turbo subaru sti block that produces 27 0 hp in stock form ....i'm wanting to de-rate it by running without the tur bo at about 180 -200hp ...- Hung up with finding a shop that will blue pr int the crank with-opened-bearing clearances to race specs ..the local shop only does big block engines and another good shop won't touch an aircr aft job ... so having to to look away from home .. grrr - I like ur idea of upping the HP of say the lyc 320 but .... i'm trying to g o de-rated rather than the other way ... - Are u running Mags ..or have u gone electronic ..? - Graham - . - - - ----- Original Message ----- From: Scott Stearns Sent: Tuesday, January 11, 2011 6:25 AM Subject: Re: KIS-List: to those that still have matco brakes... Hello, - I have carbon wings, cowl and control surfaces, a parallel valve IO-360, an d a wood/composite prince prop and it weighs about 850 lbs.- - -If I were looking for the same performance as the subaru-I'd buy a mid to high time-O-235 and pull the cylinders and have the heads ported and put in high compression pistons.- You could get at least 130HP out of it. - I'd recommend lycon in CA-for the head-work and pistons.- - You could do the same with a 320 and get 180-190 HP.- My "180 HP" 360 did 227 HP on the test cell with ported heads and 10:1 pistons and some other minor stuff.- It's a great engine, but cooling it at high power has been a big project. - The 360 requires major cowl work for induction and increase cooling and it just bearly fits under the cowl.- I have about 1/8" on each side.- - Scott - - --- On Mon, 1/10/11, Graham Brighton <gbrighton@skymesh.com.au> wrote: From: Graham Brighton <gbrighton@skymesh.com.au> Subject: Re: KIS-List: to those that still have matco brakes... Hey there Scott, ------------------------- ---- I have the Matco brakes ..so thx will check out the 'kit' ... - Back last April-while test flying a rebuilt Subaru transplant ..a inl et valve head broke off and caused a-forced landing ....have since been h ung up with finding an engine build shop that i'm confidant with ..-to bu ild another Subaru engine -that i'd fly behind ......Am looking at a mid time IO-360 .... Can u tell me the weight of urs (all up complete with acce ssories but no prop )- ... - Would be a big turn around for me to go this way .. but am presently 'looki ng' at all possibilities ...!! - Cheers Graham- (TR1 # 80 ) - . - - href="http://www.matronics.com/Navigator?KIS-List">http://www.matronics.c om/Navigator?KIS-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c =nofollow target=_blank>http://www.matronics.com/Navigator?KIS-List et=_blank>http://forums.matronics.com llow target=_blank>http://www.matronics.com/contribution href="http://www.matronics.com/Navigator?KIS-List">http://www.matronics.c om/Navigator?KIS-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c =0A=0A=0A




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