G'day Ben !
Subject: Re: O-235 horsepower
Howdy Rick,
Thanks for the info. I've wondered what electronic ignition does for
a Lyc.
LSE is Light Speed Engineering, right?
Yep ! .... Jon Johanson (the Aussie who's now flown around the world 3
& 1/2 times in his RV 4) has an engine dyno (and he is the OZ agent for
LSE) .... he says the FIRST LSE unit gives a 15% boost to the HP output
.... and the second gives about 1 (one) more percent !
When you fit an LSE unit , ... it is SO powerful , that when you do
your mag drop tests .... nothing happens when you turn the magneto off !
(Be warned - there is SOME talk of the added "pulse" from the bigger
bang causing metal props to fail !!!!! .................... thats
ANOTHER reason why I run a wooden prop ... wood has hysteresis - "self
dampening properties !
I am now intending to replace the remaining magneto with one of those
"self powering"
E-mags .... gives a BIG capacitor discharge spark - but is totally
seperate from ANY batery / wiring needs within the plane. That way ,
there will be two BIG sparks happening - independant of each other.
My 2 cents worth .... stick to the 0-235 L2c or L1A - both are 8.5:1
compression ratio and give 118 HP .... THEN fit the LSE .... you should
be getting around 130 HP ... (when you use the 9.7:1 pistons - you'll
get 140 HP ... but maybe also get a failed centre main bearing as well !
:o(
I once checked his web page and he
seems to be pretty conservative in what he claims for improvement. Of
course
that is aside from the power you are also getting from higher
compression.
Regarding weight, the lighter starter and alternator would also be
good in
the O235, keeping the weight diff about the same. But yeah, I'll want
the
oomph, somehow. Lately it seems there is just lots of lousy news from
Subaru
builders and Lyc has my attention.
Thanks again,
PS: coast to coast on two tanks???!! Holy cow, what is/was your tank
capacity?
230 litres
At 80 knots - consumption is about 14 lts / hr : a tank full = 1300
plus miles ( and a DEAD ASS !!!)
at 90- 95 knots - consumption is around 18 to 20 lts / hr
at 105 knots - consumption is 35 lts / hr
at 120 KNOTS - consumption is around 50 lts / hr !!! : a tank full =
550 miles :o(
So .................. "Speed COSTS - so how fast do you want to SPEND
!"
Rick
-Ben
On 11/17/2004 11:31 AM,
RJWH@OPTUSNET.COM.AU wrote to REBEL-BUILDERS:
G'day Ben ...
Sorry for the delay (been out last night at our Sport Aircraft
meeting ) ...
I sent you a reply "direct" .. which you should now have
Yes .... I too wanted to fit something OTHER than a LYCOSAURUS
....
but at the end of the day, when you do the HP vs WEIGHT vs INITIAL
INSTALLATION COST .... the Lycosaurus is nearly impossible to beat
:o(
Rick
PS The Rebel is probably a "nicer / sweeter" plane with a good 0-235
in
it ..... but the IO-320 gives
it extra OOOmpfff for those short strips & heavy payloads !
Our Rebel now weighs 1,000 Lbs & will LIFT 1,000 Lbs .... a VERY
nice
thing to be able to do (and it's now called a "Rebel PLUS" by the
way)
I can carry two large people, ALL their gear & we have enough fuel
to
get right across Australia (the same distance as coast to coast in
the
US of A) , in less than 2 tankfuls !
----- Original Message -----
From:
bransom@dcsol.com
To:
rebel-builders@dcsol.com
Sent: Thursday, November 18, 2004 3:55 AM
Subject: O-235 horsepower
Hi Ben
I'm not Rick but Hjalmar Rebel 308
Trying again here ...I mean this to go to Rick Harper on private
mode
--
forgot to hit private, but still don't know how it ended up going
to
Hjalmar. BTW Rick, part of what got me going on this was that I
contacted
the person (Gary) you mentioned in Sidney that had just put a WRX
2.0
turbo
in a Mustang. He said his final dry weight was 387. Good grief.
Thus my
return to thinking about Lycomings. :)
-Ben
Hi Rick,
I'm somehow in another one of my rounds of thinking about engines.
I
think I
saw -- maybe on the Murphy Builders list -- that you have an O235
and
are
getting about 130hp out of it. That's more than stock isn't it?
I'm
wondering what you've done to get that bigger HP. Also, people say
the
0320
isn't much more weight. Do you know more specifically what the
weight
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