installed my B&M fpr and guage today, got a couple q's
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From: Charleston, SC
installed my B&M fpr and guage today, got a couple q's
first a little background info. my pressure with just the guage was about 43 psi with the vaccum hose on. i have a obd1 ecu with a jun chip and i was guessing that the fuel pressure was going to be higher, but i guess not. also after i installed the actual fpr and adjusted the fuel back to the 43 psi point i replaced the vaccum hose and the pressure dropped quite a bit. so do i adjust the fpr with the hose on or off? im a little confused. also i have a vafc, but its only initialized, not been messed with at all. any thoughts you guys can lend will be helpful 
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From: Crazy Canuck, Everywhere
Re: installed my B&M fpr and guage today, got a couple q's (andrewasf77)
FPR measurements are ALWAYS done with the vaccum line OFF the regulator. Readings with the vaccum on are meaningless.
Stock FP is 47-54psi (vaccum line off - of course...)
Stock FP is 47-54psi (vaccum line off - of course...)
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From: Charleston, SC
Re: installed my B&M fpr and guage today, got a couple q's (BABY NSX)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BABY NSX »</TD></TR><TR><TD CLASS="quote">FPR measurements are ALWAYS done with the vaccum line OFF the regulator. Readings with the vaccum on are meaningless.
Stock FP is 47-54psi (vaccum line off - of course...)</TD></TR></TABLE>
so i guess i kinda f'ed up. i took the initial reading with the line on, and the second reading with the line off.
on me. but to be sure, i need to set the pressure between 47-54 with the line off, right? then when i put the vaccum line back on, the pressure will drop, but that is normal. how am i doing so far?
Stock FP is 47-54psi (vaccum line off - of course...)</TD></TR></TABLE>
so i guess i kinda f'ed up. i took the initial reading with the line on, and the second reading with the line off.
on me. but to be sure, i need to set the pressure between 47-54 with the line off, right? then when i put the vaccum line back on, the pressure will drop, but that is normal. how am i doing so far?
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From: Crazy Canuck, Everywhere
Re: installed my B&M fpr and guage today, got a couple q's (andrewasf77)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by andrewasf77 »</TD></TR><TR><TD CLASS="quote">
so i guess i kinda f'ed up. i took the initial reading with the line on, and the second reading with the line off. on me. but to be sure, i need to set the pressure between 47-54 with the line off, right? then when i put the vaccum line back on, the pressure will drop, but that is normal. how am i doing so far?</TD></TR></TABLE>
That is correct, your reading will drop once you re-attach your vacume line. That is normal...
so i guess i kinda f'ed up. i took the initial reading with the line on, and the second reading with the line off.
on me. but to be sure, i need to set the pressure between 47-54 with the line off, right? then when i put the vaccum line back on, the pressure will drop, but that is normal. how am i doing so far?</TD></TR></TABLE>That is correct, your reading will drop once you re-attach your vacume line. That is normal...
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From: Charleston, SC
Re: installed my B&M fpr and guage today, got a couple q's (BABY NSX)
thanks for the peace of mind. i think im going to leave it pretty rich for now, untill i get the car on the dyno, just to be safe 
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