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Draw through turbo VS vacuum fuel pump

Old 05-01-2016, 07:46 AM
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Default Draw through turbo VS vacuum fuel pump

Hi! I have a question; I am building a small 200cc 4stroke DOHC engine with draw through turbo (carb direct on intake Turbo). Now I want to use a vacuum fuel pump, which should normally be mounted to the intake manifold.

My question is now; does this work in combination with a turbo? Because there is no specific vacuum, but a compressed mixture with steeples build up pressure? Am i correct? Or can I mount a vacuum port between the carb and the turbo for example instead of between the turbo and the engine head?

Cant figure out by search, maybe i missed something because english is not my native language, please keep in mind when answering

Looking forward to good information on this matter

Kind regards, Gilles
Amsterdam, Holland
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Old 05-02-2016, 11:31 AM
Join Date: Feb 2012
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How exactly does this fuel pump work? It doesn't sound appropriate for a turbo application even if mounted between the turbo and the carb.
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Old 05-02-2016, 11:50 AM
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Hi! It works on vacuum or boost pulses. Normally when you connect this to the air intake manifold, the engine produces pulses... But i am not sure if the pulses are there anymore between carburetor and the turbo?
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