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Mark,
I think the original question was if a renesis water
pump with it's crude impeller has sufficient flow rate for a
20B? I don't know the flow rate but it works fine for my supercharged
renesis with 3 cu in per hp of radiator. Will it support a 350 hp
p-port 3-rotor? An improved impeller might be useful if it's marginal.
Bobby
Bobby,
As Tracy has said, "Better is the enemy of good enough". So, the
question is, is the stock Renesis water pump "good enough" to do the job we're
asking it to do?
Mark
On Fri, May 7, 2010 at 7:44 PM, Tracy Crook <tracy@rotaryaviation.com>
wrote:
My Renesis pump has a grooved pulley as well. I drive
it in the normal fashion. I think the 3rd gen was driven from the back
side?
Tracy
On Fri, May 7, 2010 at 7:52 PM, Mark Steitle <msteitle@gmail.com> wrote:
Bobby,
Is your Renesis WP driven off the back side of the belt? The
aftermarket pulleys I bought have grooves, indicating that it is driven off
the grooved sided of the belt. I'll have to look tomorrow when I'm out
at the hangar.
Mark
On Fri, May 7, 2010 at 11:20 AM, Bobby J. Hughes
<bhughes@qnsi.net> wrote:
Mark,
I
spoke with Racemate a couple of years back about machining a better
impeller for the renesis. He needed the water pump housing for proper
clearances. He looked at the renesis impeller and thought it was
junk.
Bobby
Hughes
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark
Steitle
Sent: Thursday, May 06, 2010 6:03 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: alternative water
pump
Kelly,
Keep in mind that I'm comparing it to a 20B water pump, not a 13B
water pump. The 20B pump (housing & cartridge, no pulley) weighs
11.8 lbs. The Renesis pump & housing after being cut off the
front cover is 4.5 lbs. So, I potentially can save over 7 lbs.
The big question is if the Renesis WP flow is enough water to cool
the 20B.
At present, I'm still gathering parts for the conversion, so I'm
currently running the stock 20B pump.
Any idea what the Meziere pump weighs? You'll need to add the
weight of brackets too. The Renesis pump will fit onto the front
cover same as the stock pump... well, with a few minor mods.
Mark S.
Michael,
Beautiful pump but did you see a few posts back
that Mark Steitle has
adapted a RX8 aluminum pump to his 20B and reported several lbs
of
weight saving..........Jump in here Mark............Photos welcome
!!.........
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold
-------------- Original message from "Michael Silvius" < silvius@gwi.net>:
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