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fuel pressure control valve





Is there somebody who knows of a fuel pressure control valve with a fixed value of about 3,5bar against the intake manifold, perhaps from another manufacturer or model, that can replace the original 3bar control valve, fits properly and is much cheaper than the adjustable controllers???

Thanks.

Oliver
 


you can try a bosch 3bar pressure regulator and set it up at 3.5

why do u want to increase fuel pressure?

gm

. Quote: Originally posted by Oliver-K4M on 27 January 2004
Is there somebody who knows of a fuel pressure control valve with a fixed value of about 3,5bar against the intake manifold, perhaps from another manufacturer or model, that can replace the original 3bar control valve, fits properly and is much cheaper than the adjustable controllers???Thanks.Oliver
 


I use a 1.8l ECU with a 2.0l engine. Therefore I need factor 1.1 more fuel per injection. Using this formula: >fuel mass factor = square root (new fuel pressure devided by old fuel pressure)<

1.1 is about >square root (3.5/3.0)<

And also higher pressure means better spray quality....
 


spray pattern isnt really affected, the pintle caps make the difference.

IIRC the F3Ps ran a 3.5 bar regulator.
 


Hi Oliver

not sure the increase should be linear like that. perhaps the two engines have different power deliveries/cams timing. however the pressure calculation is correct.

u can source a bosch regulator from any scrapped fiat/lancia/alfa romeo which uses the weber marelli injection. u might have to fabricate a bracket though.

gm

Quote: Originally posted by Oliver-K4M on 27 January 2004
<FONT style="BACKGROUND-COLOR: #407db6">I use a 1.8l ECU with a 2.0l engine. Therefore I need factor 1.1 more fuel per injection. Using this formula:  >fuel mass factor = square root (new fuel pressure devided by old fuel pressure)<1.1 is about >square root (3.5/3.0)<And also higher pressure means better spray quality....
 


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