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1. 02:03 PM - Engines (Graham Brighton)
2. 10:10 PM - Re: to those that still have matco brakes... (Bill Schertz)
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Scott ... thx for ur reply ..was really looking for ur actual engine
weight ... My previous Subaru engine (156hp) gave good performance
140kts cruise and 1000ft per min climb @ 100kts .... but was working the
engine 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 failure 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 seemed ok )
Currant engine plan is ... I have a turbo subaru sti block that produces
270 hp in stock form ....i'm wanting to de-rate it by running without
the turbo at about 180 -200hp ... Hung up with finding a shop that will
blue print 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 aircraft 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 go de-rated rather than the other way ...
Are u running Mags ..or have u gone electronic ..?
Graham
.
----- Original Message -----
From: Scott Stearns
To: kis-list@matronics.com
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, and 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...
To: kis-list@matronics.com
Date: Monday, January 10, 2011, 3:16 AM
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 inlet valve head broke off and caused a
forced landing ....have since been hung up with finding an engine build
shop that i'm confidant with .. to build 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 accessories but no prop ) ...
Would be a big turn around for me to go this way .. but am
presently 'looking' at all possibilities ...!!
Cheers
Graham (TR1 # 80 )
.
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Message 2
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Subject: | Re: to those that still have matco brakes... |
It cost $443 for the changes. Is this a discount? I don=99t know
what a whole new set from Grove would cost, probably more =93 and
I already had the Matco system installed.
Bill Schertz
KIS Cruiser #4045
N343BS
Phase I testing
From: John Forster
Sent: Monday, January 10, 2011 9:40 AM
Subject: RE: KIS-List: to those that still have matco brakes...
Bill,
Did they offer some discount for the upgrade process? I am still
leaning toward replacing everything with Grove, but I am interested in
the positive changes that Matco made.
And congrats on the testing milestone!
John
-------------------------------------------------------------------------
-------
From: owner-kis-list-server@matronics.com
[mailto:owner-kis-list-server@matronics.com] On Behalf Of Bill Schertz
Sent: Monday, January 10, 2011 9:27 AM
Subject: Re: KIS-List: to those that still have matco brakes...
I have a TR-4, that came with Matco Brakes. At first start-up and taxi,
the braking action was very poor, and uneven. I could not turn right.
Diagnosis revealed that one caliper had leaked, contaminating the
surface. I cleaned that up, and it was =98better=99 but
still not good. Did the exercise of pulling the plane and riding the
brakes to =98burn them in=99 and that helped quite a bit.
Found that one caliper was still leaking, so contacted Matco.
Turns out that they had been bought out by a new owner since my original
brakes were made. several changes were available.
1. a larger caliper cylinders
2. a more aggressive brake pad, and
3. they changed the material that the rotor was made of , and when I
removed my calipers to send them back to be retrofit, I found that one
of the rotors had a crack in it. Discussion with Matco revealed that
the original rotors (which I had) were made from an easily machined
material that contained graphitic carbon (which can act as a lubricant
=93 good for machining and bad for braking), and the new rotors
were made of a different alloy. Bottom line =93 I upgraded the
caliper cylinders, and the rotors.
I have great braking now. Will hold the plane at full throttle on the
ground (if the tires don=99t slide on the pavement). I paid
attention to the geometry at the master cylinders from the Matco
literature, and did not use the wimpy brake pedals that KIS supplied.
By the way, I completed my 40 hour test requirement yesterday.
Bill Schertz
KIS Cruiser #4045
N343BS
From: Graham Brighton
Sent: Monday, January 10, 2011 5:16 AM
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 inlet valve head broke off and caused a forced
landing ....have since been hung up with finding an engine build shop
that i'm confidant with .. to build 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 accessories but no prop ) ...
Would be a big turn around for me to go this way .. but am presently
'looking' at all possibilities ...!!
Cheers
Graham (TR1 # 80 )
.
----- Original Message -----
From: Scott Stearns
To: kis-list@matronics.com
Sent: Monday, January 10, 2011 5:10 AM
Subject: KIS-List: to those that still have matco brakes...
Matco makes a 'brake intensifier kit' for the master cylinders.
It's basically a sleeve that lets you use a smaller piston so you get
more brake pressure per foot pressure.
I got the kit and installed it. It's not a night and day
difference, but a noticable improvment. Without the kit my matco brakes
were inadequate, but I would call them acceptable with the kit.
The kit is complete, but for some reason that I don't understand
they make the customer trim down the sleeve to fit. The kits are only
$16 so I'd recomment buying and extra one in case the sleeve trimming
doesn't go well on one.
Scott
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