i just installed the walbro fuel pump and the car was tuned with stock fuel pump.

and do i need to re-tune the car after this mod or ??

any ideas?

 

Fuel Pressure Regulator adjustment will be needed.

Correct me if I'm wrong.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by neo_ &raquo;</TD></TR><TR><TD CLASS="quote">Fuel Pressure Regulator adjustment will be needed.

Correct me if I'm wrong. </TD></TR></TABLE>

you're right.

i had to lower the pressure a little bit.

i had it set at 55-56 psi and after the new pump it was at 60+

 

why did you install walbro to begin with? its probably best to retune.. i ran stock injectors and ecu on walbro, car had no problems but i just needed to get from A to B

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtec.dc2 &raquo;</TD></TR><TR><TD CLASS="quote">why did you install walbro to begin with? its probably best to retune.. i ran stock injectors and ecu on walbro, car had no problems but i just needed to get from A to B</TD></TR></TABLE>

Nitrous??
Plan to upgrade to bigger injectors?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtec.dc2 &raquo;</TD></TR><TR><TD CLASS="quote">why did you install walbro to begin with? its probably best to retune.. i ran stock injectors and ecu on walbro, car had no problems but i just needed to get from A to B</TD></TR></TABLE>

i had the pump sitting around in my room and i had my motor done last summer and got it tuned.. and i thought i might as well install it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itr1244 &raquo;</TD></TR><TR><TD CLASS="quote">

i had the pump sitting around in my room and i had my motor done last summer and got it tuned.. and i thought i might as well install it.

</TD></TR></TABLE>

so if you don't have any problems using stock fuel pump.. go back to using stock fuel pump..

can this mess up your a/f if you don't retune.. probably..

on same hand.. i wouldn't waist money for retune just because i added walbro pump, wait until you get some more mods, then install walbro pump and retune at once.

 

yeeh that makes sense but i need my car retuned some time soon anyways..

i think it might make the car run a little rich overall but i am not sure.. dyno should tell me the answer