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 Post subject: 1.0 injector flow rate?
PostPosted: Tue Sep 14, 2010 5:10 pm 
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Joined: Mon Jun 14, 2010 8:21 pm
Posts: 22
Location: Cleveland
I can't seem to find the flow rate for these injectors anywhere. I'm using an aftermarket inline fuel pump in a buggy application and need to make sure my pump flows enough. The engine is from a '99.


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PostPosted: Tue Sep 14, 2010 5:26 pm 
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Location: columbus, ohio
290cc/ min. they are the red ones aren't they?

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PostPosted: Thu Sep 30, 2010 6:13 pm 
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Joined: Sat Sep 05, 2009 12:10 am
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Location: the holy city of hopewell junction

pull off the return line and replace it with a loop of clear plastic tube
run the engine
if there are no bubbles in the return line , AND the fuel pump can maintain correct fuel pressure
it is up to the job

the fuel pump flow should never change , it is flowing at max for the system all the time , the fuel pressure regulator just dumps excess fuel back to the tank
all the time the engine is running or the fuel pump is "on" .
as long as the return flow is uninterrupted AND fuel pressure is at spec . the system has enough fuel for it's needs.


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PostPosted: Fri Sep 30, 2011 12:21 pm 
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Joined: Thu Sep 29, 2011 8:43 pm
Posts: 5
Location: Ft Hood, TX
mwebb wrote:

pull off the return line and replace it with a loop of clear plastic tube
run the engine
if there are no bubbles in the return line , AND the fuel pump can maintain correct fuel pressure
it is up to the job

the fuel pump flow should never change , it is flowing at max for the system all the time , the fuel pressure regulator just dumps excess fuel back to the tank
all the time the engine is running or the fuel pump is "on" .
as long as the return flow is uninterrupted AND fuel pressure is at spec . the system has enough fuel for it's needs.


not all fuel systems have a return line, and need fuel pump voltage adjustable based on fuel needs for the motor

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PostPosted: Fri Sep 30, 2011 1:47 pm 
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Joined: Fri Feb 13, 2009 7:10 pm
Posts: 880
Location: Vancouver, WA
true but none of these cars use returnless fuel systems with a PWM pump. so the advice given in this thread is valid.


it wont take much pump to keep up with a 1.0 just install a pressure gauge and if it falls below spec at high rpm/load youll need a bigger pump.

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PostPosted: Sun May 27, 2012 1:23 am 
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Joined: Sun Mar 07, 2010 12:56 pm
Posts: 6
Location: Florida
290cc at what psi?


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