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1. 03:43 AM - Fw: Engines (Graham Brighton)
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Subject: Re: KIS-List: Engines
G'Day back Scott,
And i reckon u could just about make
it to Australia with all that fuel .... of course u'd have to
'super-size' .er ..that Bottle ...!!
I looked at my Subaru engine weights again ... 2.5 sti engine running
non turbo .. ( turbo 270 hp ... but looking for derated at close to 200
hp )
Engine long block 80kg
Engine exhaust x2 4kg
Alternator 70amp 5kg
Engine mounts 3kg
Intake/coil/leads/TB 7kg
Redrive 1:1.82 ratio 26kg
Total .......... 125kg (275 lbs
Belly Scoop Radiator ... ?kg
Plumbing ........................ ?kg
Water coolant...................?kg
So pretty line ball with the IO 360 by the looks ..?!
Cost well ..... Auto conversions can cost anything ...cost Larry his
plane ... sob ...cost me a forced landing and some busted parts ... has
cost others much more hey ..? BUT .... If u find the rite engine
builder (finally i think i have ) who specializes in only my engine
(subaru) type and is fair dinkum ( not blowing smoke) ... well not much
money ... I'v managed to track down bout the best subaru man in
Melbourne ...$ 2-3 K for engine preparation (blue printing crank
clearances,forged pistons ,line boring ,s/s x-rayed valves , etc etc ..
i supplied the block and core heads and Delta cams .. His short block
(factory new) price $1600 .. ( bugger i already paid $2000 for the same
factory block grr ..!?)
Haven't settled on engine management ... has to be not subaru though
(limp mode etc etc ..) The engine builder is looking at SDS and Tracy
Cook etc ...
Running knock sensors allows timing rite up to Peck Power .. and without
it the engine is just missing out on available power ...!
Redrives ... are a real headache i think .... Harmonics vary with each
individual engine type combo ... so danger there ...
Electric's ...well i didn't build the plane so there is gaps in my
knowledge how some things are set up .. i have two 17 amp hr (34 amp
hrs)Batteries and two Buss's ..engine runs on either or both !! .. and
will run on the Alternator alone ..!!! ...not as good as running Mags
...but ur Mag timing is set off for detonation safety ... so loosing
power hey !!
Anyway ...blowed if i know ... i specially DON'T like getting milked by
the certified engine so and so's ...!!!
Engine guy thinks i'm a little conservative ... ! but a turbo is a
possibility in the future ..far off though ...( car turbo rotors are
not suitable for aero use though )
So ..as Bill says ...not for everybody ..!!
Cheers
Graham
Ps Have friends coming to CA in 3 wks time ..wish it was me ..sob ..!
.
.
----- Original Message -----
From: Scott Stearns
To: kis-list@matronics.com
Sent: Tuesday, January 18, 2011 7:26 PM
Subject: Re: KIS-List: Engines
Hi Graham,
I don't mind using a relief bottle. Also going multiple legs
without refueling can be useful. For instance I was flying down in the
Bahamas over the summer and it would have saved a good amount of money
to have been able to fill up with $4 gallon gas in the US and not have
to buy the $6+/gallon gas in the Bahamas.
Basically I can do two 3 hour legs and land with full main tanks
(40 gallons), but I would have to do it solo. For instance I'll flying
from California to Florida at some point. Right now there are some
airports in texas that are selling 100LL for $3.50/gallon. I could fly
from Texas to Florida and half way back with the cheap gas even if I
wanted to stop a couple times.
Good luck with the subaru engine. What kind of power are you
expecting and at what cost? What kind of electical system are you
running to have backup power for the engine computer?
Scott
--- On Mon, 1/17/11, Graham Brighton <gbrighton@skymesh.com.au>
wrote:
From: Graham Brighton <gbrighton@skymesh.com.au>
Subject: Re: KIS-List: Engines
To: kis-list@matronics.com
Date: Monday, January 17, 2011, 3:30 AM
Scott,
My Internet has been interrupted lately (flooding
up north) ..so couldn't get back straight away .. Good thinking on
being able to hold HP up high ..have to wonder about 'watering the
horse' though with all that fuel endurance .... My 'endurance' due
bladder ..!!! is only a couple of hrs though ..!!!
On my engine build ... well the engine is in some ways the
easy part and i do like water for head cooling etc ...but the Redrive
with an auto conversion is much more problematic .. !!! Should come in
under 300lbs ... will re total the weights this week ..
Hey ..Bill Schertz ...how bout chiming in with some back up
with ur Cruiser .... it has a Rotary rite ..or ..or ..?
Cheers
Graham
(TR1 #80)
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