----- Original Message -----

From: Marc Wiese

To: Rotary motors in aircraft

Sent: Friday, December 03, 2004 2:04 PM

Subject: [FlyRotary] Re: exhaust help

Very dicy to find one for a 20B. I did find one from the Japanese RE Amyeia (sp?) but the wastegate goes the “wrong way” toward the prop…..and you will need a spacer to get the turbine housing away from the engine as well……..……I think Bob Darrah welded his own up out of inconel……kudos to him, wish I could do that! Best bet-when ready to fit to engine with mount all done, make up your own from 321 ss with expansion bellows and make sure it fits…with an external wastegate….unlike the one Racing Beat did for experimentation pictured here as it has no wastegate…..

Marc Wiese

 

 

 

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of kevin lane
Sent: Friday, December 03, 2004 12:02 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] exhaust help

 

I am at the stage of designing my exhaust layout for my 20B.  what direction would a stock exhaust manifold exit?  I'm guessing that I will have to have one in hand to see how the clearances are around the engine mount.  that may force me to have one fabricated.  any idea on the availability a 20B exhaust manifold?

Kevin Lane  Portland, OR
e-mail-> n3773@comcast.net
web-> http://home.comcast.net/~n3773
(browse w/ internet explorer)

----- Original Message -----

From: Russell Duffy

To: Rotary motors in aircraft

Sent: Thursday, December 02, 2004 1:35 PM

Subject: [FlyRotary] Re: Bernie Update, Good news& bad, empty weight and injectors

 

Yep, Tracy listened to them click and they all sounded good when he was here 2 weeks ago. I have pulled them and currently thinking of ways to test them off the airplane at the minute. They are 195500-1350's and if you do have some that I could try, would appreciate you mailing them to me. I'll be happy to reimburse you the mailing cost!

 

I'm sure Tracy also checked the impedance?  Were they high or low (with external resistors)?  The number you have came in two flavors, one was red, low impedance and came in the 86-87 NA engines.  The other was purple, high impedance, and came in 88 NA engines.  I believe I have two of the 88 high impedance version at the hanger.  If that's what you have, I'll sent them your way, though it will probably be Monday before I can mail them. 

 

Rusty

 

 

Mazda RX-7(Gen 1 and 2) Fuel injector identification guide

 

Year | type | impedance | plug style | plug notch position | flow rating | color | part number

 

------------------------------------------------------------------------

 

84-85 | 13B NT | low  | square | center  | 680cc | orange | 195500-0900
86-87 | 13B NT | low  | square | center  | 460cc | red       | 195500-1350
86-87 | 13B T    | low  | square | center | 550cc  | tan       | 195500-1370
88       | 13B NT | high | square | offset  | 460cc | purple  | 195500-1350
88       | 13b T    | high | square | offset  | 550cc | purple  | 195500-1370
89-91 | 13B NT | high | oval      | center | 460cc | red       | 195500-2010
89-91 | 13B T    | high | oval     | center  | 550cc | purple  | 195500-2020

 

---

>>  Homepage:  http://www.flyrotary.com/
>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html