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Old 08-18-2008, 01:32 AM   #183 (permalink)
JohnStranahan
Junior Member
 
Join Date: Dec 2004
Posts: 98
Default Re: Suzuki GSXR 750 quad Throttle Body Install on 2.3 L Duratec

Thanks for the posts and positive comments guys.

The question is mostly answered above. I'll add a bit. I plan to use a larger Cosworth Mass Air Flow Sensor (MAF) tube with the stock Ford Computer and MAF plus a tune. The single inlet is thus required to meter the air. To have multiple inlets in say an oval air filter housing you would need an expensive after market computer to replace the stock computer; this computer would use a fuel map alone to run the motor and would not need a mass air flow sensor.
In addition I plan to keep most of the emissions features of the stock engine including EGR, idle air turbulence, ability to run in a closed loop where the engine computer uses output of the O2 sensors to continuously remap the fuel curve. In other words the computer learns as you drive.

Right Now I am working on a vacuum chamber that I plan to plastic weld into the upper portion of the inlet housing right where the housing has a stock chamber for the motorcycle crankcase ventilation. This will have a large port to engine vaccum from each manifold runner and will include positive crankase ventilation air and possibly idle air motor air. It will hold the combined Absolute Manifold Pressure/ inlet air temperature sensor through a hole at the top.
I am still thinking about this a bit. I am looking for some vacuum hose barbs that would be suitable to use in the plastic manifold on the bottom side. I don't like the 1/4 inch hose barbs that require a huge (1/2 inch or so) threaded hole much.
john

Last edited by JohnStranahan; 08-18-2008 at 01:17 PM.
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