THANKS, = Dennis.

It really didn’t hurt too = much turning 70 {:>). =A0=A0

Terrible to hear about your sister = with cancer, keep hoping that medical progress will banish that as well as = its done small-pox.

Fly = safely.

Ed Anderson

Rv-6A N494BW Rotary = Powered

Matthews, NC

eanderson@carolina.rr.com

http://www.andersonee.com

http://www.dmack.net/mazda/index.html

http://www.flyrotary.com/

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.r= otaryaviation.com/Rotorhead%20Truth.htm

From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Dennis Haverlah
Sent: Saturday, February = 13, 2010 3:46 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = rpm vs Power was : Throttle limits was Re:N.A.Renesis to = turbo

Thanks Chris,
I'll be going into Pearland so probably won.t see you. The last = time I landed at Pearland the airport was
in town and not as good as a pot holed 2 lane country = road!

Happy BIG 70 = th. Birthday ED ANDERSON!!

Dennis H.

Chris Barber wrote:

Dennis,

I am sorry to hear about your = sister.

I should be at the hangar most the day on = Saturday at Ellington (EFD) if'n you need someone to watch your plane = <g>

Chris

Hangar Alpha = Papa

832-818-CELL = (2355)

From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of Dennis Haverlah [clouduster@austin.rr.com] Sent: Friday, February = 12, 2010 9:53 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = rpm vs Power was : Throttle limits was Re:N.A. Renesis to = turbo

I'm flying the RV to Houston Saturday morning to visit my sister - she has a very bad cancer. = I'll get you more info on my intake Monday.

Dennis H.

Bryan Winberry wrote:

Mike,

I found it. Here it = is.

Bryan

From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mike = Wills
Sent: Friday, February = 12, 2010 8:47 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = rpm vs Power was : Throttle limits was Re: N.A. Renesis to = turbo

Dennis,=

So for that RPM, how long = did your intake runners end up being?

For what its worth, I = tried to emulate Tracy's dynamically tuned intake as well. But cowl constraints probably = compromised the intake at the point where the TB is mounted. This is something I want to = modify anyway. As it is things are tight enough that I cant even run any sort = of air filter, so I do need to make some changes here - may as well try to do = it right.

I know I had a picture of = your intake - saw it just recently. But cant find it now. Could you re-post = it?

Mike

From: Dennis Haverlah =

Sent: Friday, February 12, 2010 11:19 AM

To:= Rotary motors in aircraft =

Subject: [FlyRotary] Re: rpm vs Power was : Throttle limits was Re: N.A. Renesis = to turbo

I used the = same 65 mm Mustang throttle body on both my original and new intakes. = If I remember correctly, I believe I had a longer unused throttle = travel with the original intake but I never measured it. I don't know the = static rpm increase with the new intake - probably have that in my notes some where = but my max. rpm at high altitude (8,000 - 10,000) increased 400-500 rpm. = I estimated I went from 165 -170 HP with the old intake to about 185 HP = with the new intake. This in in line with Ed Anderson's recent note that = Mazda got about a 16% power increase at 6000 rpm with the DIE effect. I felt = much improved acceleration the first time I took off with the new intake. =

the new intake is based on dynamic = intake effect (DIE) where the closing of an intake valve = caused the moving intake air to bounce off the valve creating a pressure = wave. The wave travels at the speed of sound to the other intake valve and arrives = there just before that valve closes. This increases the amount of air = and fuel that enters the combustion chamber. (As we know the rotary has no = valves but uses the sides of the rotor for opening and closing the = intakes.) I designed my intake to give max. performance at 6300 rpm.

If I had cut down my prop to 74" it would give me more clearance = for the prop on my RV-7A and increase my top end rpm. Max rpm is = about 6400 rpm with the new intake and the 76" prop. I'm really not = needing higher RPM now.

Dennis Haverlah

Bill Bradburry wrote:

Dennis,

Did your static rpm increase with the new manifold? How much? Did you before and do you now have any = unused throttle travel like Mike describes? Are you using the same throttle body on the new manifold? What is the MM opening of the = Mustang body?

My manifold is very similar to your old = one. My tubes are cut just above the injector bosses, which makes them a little = (maybe an inch) shorter than your old ones. I have a 76 X 88 Performance = prop which I am considering having cut down to 74” like Tracy and Ed = when I send it in for final finish. I am using an aftermarket throttle body that = is 75MM in throat diameter. This is the same size as the stock Renesis = throttle body which is why I picked it. I had intended to use the Renesis = body, but didn’t wait for Tracy to get the fly by wire done. I am not flying, but my static is = 52-5300 rpm and I have a lot of throttle left at that rpm. The last = probably =BC of the travel is not used.

Bill B

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