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) on the RV-3, somewhere down the road. One of the drawbacks to the supercharger is the lack of boost control. I asked the ATI guys about controlling the boost via a valve on the outlet of the blower, but they said not to do that because it was bad to unload the blower. You can certainly control boost via throttle opening, and perhaps you can even do it via engine computer almost like a sort of rev limit. What's your plan? Cheers, Rusty (no flying today, due to work that sucks) ------=_NextPart_000_0030_01C56FFD.110F94D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message

Bobby,

before you pluck down the money for the Eaton, = check out=20 the Whipple/KenneBell/Lysholm.

In the last 5.0-Mustang mag (sometimes I fall = back to old=20 habits, sorry.... :) ), there was an advertisement for a KenneBell = setup=20 as a direct replacement for the Eaton ( there was some factory offer = with a=20 Eaton charger, probably from the Motorsports department...), which = claims more=20 power/efficiency with the same setup (bolt in...)

I know that the Whipple is pricier than the = Eaton, but not=20 that much!

Thomas J.

----- Original Message -----
From:=20 Bobby J. = Hughes=20
To: Rotary motors in = aircraft

Sent: Monday, June 13, 2005 = 9:20 AM

Subject: [FlyRotary] Re: = normalized=20 supercharger?

I am planning to use an Eaton M62 blower for=20 normalization. Basically the same configuration the Egg Subi's are = running=20 without the automatic waste gate controller only one size larger. In = this=20 configuration the TB goes in front of the SS and the waste gate is = built into=20 the blower. The waste gate will be controlled by a cable and will have = to fly=20 by MP. I calculated I would need to make 3.78 # of boost to = achieve sea=20 level pressure at 8000 ft. 4.5 #'s with an intercooler. So,,, I am = going to=20 install a larger SS pulley and a smaller crank pulley to limit the = boost to=20 4.5 psi at 6500 rpms. No need to spin the SS any faster than = necessary. My=20 goal is to have a fuel efficient plane at cruse so boost above this = altitude=20 would be wasting fuel. This also putt's the Renesis and IO540 at about = the=20 same performance level at and above 8K.... only 125#'s lighter with a = faster=20 cowl. :)

I would like to look at an electronic waste = gate=20 controller but have not figured out how to build it = yet.

Bobby
RV10

From: Rotary motors in aircraft=20 [mailto:flyrotary@lancaironline.net] On Behalf Of Russell=20 Duffy
Sent: Sunday, June 12, 2005 7:14 PM
To: = Rotary=20 motors in aircraft
Subject: [FlyRotary] normalized = supercharger? Was=20 Re: Is common sense dead (rant mode on)

I=20 will have a normalized Renesis, supercharged.

Hi=20 Mike,

How = were you planning=20 to normalize with the supercharger?

I'm planning to put either a = supercharger=20 (what I'd prefer), or another turbo (shut up John <g>) on the = RV-3,=20 somewhere down the road. One of the drawbacks to=20 the supercharger is = the lack=20 of boost control. I asked the ATI guys about controlling the = boost via a=20 valve on the outlet of the blower, but they said not to do that = because it was=20 bad to unload the blower.

You can certainly control = boost via=20 throttle opening, and perhaps you can even do it via engine computer = almost=20 like a sort of rev limit. What's your plan?

Cheers,

Rusty (no flying today, due to = work that=20 sucks)

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