randy Posted August 1, 2002 Share Posted August 1, 2002 Is there a way to increase the fuel pressure on our jap spec stock fuel system? Is the stock fuel Pressure Regulator adjustable and where exactly is it located? Quote Link to comment Share on other sites More sharing options...
GavinL Posted August 1, 2002 Share Posted August 1, 2002 Originally posted by randy Is there a way to increase the fuel pressure on our jap spec stock fuel system? Is the stock fuel Pressure Regulator adjustable and where exactly is it located? I don't beleive it is adjustable as I had an adjustable one fitted on my car ..... I don't know where the original one was located regrettably. Quote Link to comment Share on other sites More sharing options...
Ian C Posted August 1, 2002 Share Posted August 1, 2002 The stock FPR is located on the fuel rail, front of the car end (just above injector #1). The fuel rail nestles between the intake manifold and the cylinder head. It's a long narrow metal thingy with six fuel injectors stuffed in it. It's attached by two bolts, has a fuel hose going in the side, and a 1/4" vacuum hose going in the round UFO-shaped bit. It's not adjustable. The question is - why do you want to adjust it? -Ian Quote Link to comment Share on other sites More sharing options...
randy Posted August 1, 2002 Author Share Posted August 1, 2002 Originally posted by Ian C It's not adjustable. The question is - why do you want to adjust it? -Ian So there is no way I could increase the fuel going through! Basically I feel I am running lean at a specific RPM. I am planning to get the Apex S- AFC and will be upgrading my fuel pump to a bosch 223 litre/hr capacity. Quote Link to comment Share on other sites More sharing options...
GavinL Posted August 1, 2002 Share Posted August 1, 2002 Originally posted by GavinL I don't beleive it is adjustable as I had an adjustable one fitted on my car ..... your not paying attention...go to the back of the class Quote Link to comment Share on other sites More sharing options...
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