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| Forum name | Turbo/Nitrous Tech |
| Topic subject | Why does my 1:1 FPR rise when not under boost? |
| Topic URL | https://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?
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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.
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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
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72972, RE: Why does my 1:1 FPR rise when not under boost? Posted by tim97rs, Jun-22-04 09:29 AM
thanks guys.
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