Mailing List flyrotary@lancaironline.net Message #8679
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Intake
Date: Fri, 28 May 2004 20:09:10 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Hi, The atkins intake arrived today in good shape.  Ahhh, what's the green stuff on the inside?  
 
Beats me.  It looks like paint, and it was like that when I got it.  I'm guessing that Dave Leonard decorated it for Christmas one year :-)
 
Is the bolt pattern for the IDA Weber set up? If not, What TBs will fit, if you know?. 
 
I believe it was for the IDA bolt pattern, and I don't know of any other TB that will fit, but you could probably modify an old IDA carb as nothing more than a pair of butterflies.  You'd have to add two more injectors, but there are bosses on top of the secondary runners that are the correct spacing for a stock secondary fuel rail.  I don't really like the fact that they would be pointing perpendicular to the airflow though.  
  
Do you have such that you would like to part with?  
 
I have one that fits, but it's the one I'm bolting onto my engine tomorrow (hopefully, as a final solution).  Sorry.    
 
TWM has a throttle plate/air horn set up, but it would cost me ~$550 
 
I feel your pain, twice actually, since I have two TWM TB's. 
 
Have you tried the injectors yet?  I hope they work okay!!! 
 
Thanks for sending those, but I won't be trying them immediately.  I'm going to start with the same 550 and 525 injectors that I was using in my last test.  I know the 550's will idle fine, and I also know they're good, so I don't really want to introduce another variable at the moment by installing questionable injectors.  Eventually, I'll probably have them tested, and try them to see if they idle better. 
 
In the past, my 525 MSD injectors always seemed way leaner than the 550 Mazda injectors, but I think that may have been due to proximity to the port, rather than the small difference in the injectors.  Now that they're both about the same distance, I'll be interested to see how they compare.  If the 525 MSD's are still much leaner, then I'll hope the 440's you sent will even them out.    
 
Thanks,
Tommy the Koil Killer---The problem continues and I may have send the EC2 back to TC for a check up.. 
 
Have him install the LS-1 software, and I guarantee you will never kill another Mazda coil on the plane :-) 
 
I finished the fuel rails tonight, and have everything set to bolt back together tomorrow.  I'll at least be able to get a ground run in, so stand by for the report tomorrow night.
 
Cheers,
Rusty (must develop more rpm than Tracy used to make)

 
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster