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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. =20 =20 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? =20 =20 Cheers, Rusty (no flying today, due to work that sucks)=20 =20 =20 ------_=_NextPart_001_01C57023.1A0C9288 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

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

I would like to look at an electronic waste = gate controller=20 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 = motors=20 in aircraft
Subject: [FlyRotary] normalized supercharger? Was = Re: Is=20 common sense dead (rant mode on)

I=20 will have a normalized Renesis, supercharged.

Hi=20 Mike,

How were = you planning to=20 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 of=20 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 throttle=20 opening, and perhaps you can even do it via engine computer almost like = a sort=20 of rev limit. What's your plan?

Cheers,

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

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