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Re: what size throttle body for adequate air flow?

Posted: Sun Apr 04, 2010 4:04 pm
by vashon
I am working on fuel injecting a 42 ci twin engine with wasted spark. I.E. Briggs and stratton twin cylinder and am trying to find injector size for that size engine. A simple engine but I am very new to fuel injector fuel feed systems.
Any help would be very welcome. I am planning on using the original carb modified with tps and machining the manifold for the injectors. Hoping to use sequential injection.

Re: what size throttle body for adequate air flow?

Posted: Tue Dec 30, 2014 5:45 pm
by Powerabout
If I went from multiple carb throttle blades to a single large throttle body for efi conversion, should I just match total area for total area?