Mailing List flyrotary@lancaironline.net Message #13429
From: kevin lane <n3773@comcast.net>
Subject: exhaust help
Date: Fri, 3 Dec 2004 10:02:06 -0800
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
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
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----- Original Message -----
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



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