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Forum nameTurbo/Nitrous Tech
Topic subjectWhy does my 1:1 FPR rise when not under boost?
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=72954
72954, Why does my 1:1 FPR rise when not under boost?
Posted by tim97rs, Jun-22-04 04:53 AM
isn't that the point of a 1:1? to rise 1lb of fuel for every 1lb of boost? yet mine rises 4-8psi when scootin around town and im still in vacuum.

normal?
72957, RE: Why does my 1:1 FPR rise when not under boost?
Posted by DarkOne, Jun-22-04 05:32 AM
Normal. It's vacuum-indexed, too. You're supposed to increase fuel pressure as vacuum decreases to maintain the same flow of fuel into the motor.
72964, RE: Why does my 1:1 FPR rise when not under boost?
Posted by Corbin, Jun-22-04 06:36 AM
If you like MS Paint graphs, then see the first few paragraphs on this page:

http://www.2gnt.com/www/corbin/foolafc.html

I discuss the relationship between vacuum, boost, and absolute pressure.

Corbin

'95 ESI-T
HRC+FMIC+ETC...



Gimme fuel...Gimme fire...Gimme that which I desire
72972, RE: Why does my 1:1 FPR rise when not under boost?
Posted by tim97rs, Jun-22-04 09:29 AM
thanks guys.