Focaljet - Ford Focus Forums - View Single Post - Suzuki GSXR 750 quad Throttle Body Install on 2.3 L Duratec

**JohnStranahan** · 12-20-2007, 12:14 PM

Focus WRC07
I would have thought that everyone with a Cosworth manifold would have a plastic one for sale. This is not the case. I could not find one. Nor could I find one in the junkyards that they would sell. I did find two complete engines. Instead I will make a short manifold from ABS plastic that I described in my previous post. My original plan was to make a short 2-3" manifold out of the Ford plastic one.

I received the adhesive today. It is on the expensive side, but you get a small drinking glass full of glue (6 ounces, 200 mL). This should be more than enough for the whole project. I also received the Spectre 4 inch plastic inlet tube with flange. The height of the tube is insufficient to use alone. Instead I plan to invert this part and glue it to the box with the 4240 3M Plastic Repair. This will make a nice solid mount for the Aluminum inlet. The goal is not to have constant vibration open up any seams that I made in this box.

The combined inlet area of these 42 mm throttle bodies is about 84mm if it were a single. This should be more than enough. What upgrade were you thinking about. If you make the throttle bodies or ports too big in diameter you will lose your charge velocity that helps the midrange out.

12-20-2007, 12:14 PM	#76
JohnStranahan Junior Member Join Date: Dec 2004 Posts: 75	Re: Suzuki GSXR 750 quad Throttle Body Install on 2.3 L Duratec Focus WRC07 I would have thought that everyone with a Cosworth manifold would have a plastic one for sale. This is not the case. I could not find one. Nor could I find one in the junkyards that they would sell. I did find two complete engines. Instead I will make a short manifold from ABS plastic that I described in my previous post. My original plan was to make a short 2-3" manifold out of the Ford plastic one. I received the adhesive today. It is on the expensive side, but you get a small drinking glass full of glue (6 ounces, 200 mL). This should be more than enough for the whole project. I also received the Spectre 4 inch plastic inlet tube with flange. The height of the tube is insufficient to use alone. Instead I plan to invert this part and glue it to the box with the 4240 3M Plastic Repair. This will make a nice solid mount for the Aluminum inlet. The goal is not to have constant vibration open up any seams that I made in this box. The combined inlet area of these 42 mm throttle bodies is about 84mm if it were a single. This should be more than enough. What upgrade were you thinking about. If you make the throttle bodies or ports too big in diameter you will lose your charge velocity that helps the midrange out.