Fuel Pressure Dropping @ WOT
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Fuel Pressure Dropping @ WOT
While dynoing my car. I notice the my FP dropped from 60 - 40 psi. Even on the street at part-throttle, it drops to 50.
Before I install an inline pump. Is this normal and expected for the power I have??
Before I install an inline pump. Is this normal and expected for the power I have??
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You are running out of pump. I would do an intank Walbro pump before an inline pump. The inline pump will help with keeping the pressure up but it will not give you any extra fuel. The inline just can not pull anymore fuel through the stock pump.
Nate
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You guys have been doing this alot longer that me. I am convinced. If I cannot change the order, I will just order an intake. Anything special I need to order? Or just go through one of the sponsors?
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I tend to patronize the sponsors here, since they try to accomadate our needs, even if it is a few dollars more (as long as they have it in stock or can get it to me when I need it).
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They do not make an easy kit for our cars to install the pumps. I have the pump and a install kit in stock. I am also offering them installed in the sender as an exchange basis.
Nate
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Hmm, if my pressure is dropping from 62 to 56 would an inline help me? I've got a walbro intank and 42# injectors feeding a 427. Would a vacuum referenced regulater be better? Which one is easier to install?
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Originally Posted by Ed Blown Vert
While dynoing my car. I notice the my FP dropped from 60 - 40 psi. Even on the street at part-throttle, it drops to 50.
Before I install an inline pump. Is this normal and expected for the power I have??
Before I install an inline pump. Is this normal and expected for the power I have??
Try changing the filter, cheapest and easiest thing to do.
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ED I hate to say it but I had the same problem. Does yours drop just sitting in park revving the engine? mine did. I checked everything. I already had a t-rex fuel punp inline. I added a walbro pump in the tank and it did nothing. I even disconnected my fuel lines and blew them out to make sure something wasnt stuck. I bypassed the filter, the pump and nothing. I tried everything. I gave up and bought rails, braided lines, aremotive eliminator pump, regulator and a sumped tank. problem solved. and it cost around $2,000 to do.