Marc,
The stock Chevrolet 5.7 TB is about 10mm bigger than the stock 5.0 Ford unit.  I went a bit bigger and bought a Holley 104mm high-performance Ford unit.  It was pricey, but nice and light.  Since you're building a 20B, I'm not sure a 5.0 Ford or LS1 TB will provide adequate flow.  If you're interested, I still have my LS1 TB that I would let go for $25. 

Mark S.


    At 08:49 PM 2/14/2004 -0500, you wrote:

What it the area/dia in mm of those tb s? Need airflow for 20B&..

 

Marc Wiese

 

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bartrim, Todd
Sent: Tuesday, February 03, 2004 2:01 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: nonEFI fuel systems

 

Bruce Terrentine told me to get a Throttle valve from a 5 ltr. Ford, or one

off a V-6 Toyota.

Hi John;
        I just went down to the wreckers to find mine and coincidentally the one that I chose is from a Ford 5.0 liter Triton. It has worked very well and was easy to adapt to my installation.

S. Todd Bartrim
Turbo 13B
RX-9endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm

        "Imagination is more important than knowledge"
                                        -Albert Einstein