switched to a aftermarket manifold and wondering if i still need this?

 

no, it is for the secondaries. vacuum activation

 

no but u need a diff ecu though or a vafc fyi

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC2SiR &raquo;</TD></TR><TR><TD CLASS="quote">no but u need a diff ecu though or a vafc fyi</TD></TR></TABLE>

no you dont.
Why?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by numbnuts22715 &raquo;</TD></TR><TR><TD CLASS="quote">

no you dont.
Why?

</TD></TR></TABLE>
because vtec kicks in too early for an aftermarket IM on a stock ECU which causes it to bog

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC2SiR &raquo;</TD></TR><TR><TD CLASS="quote">
because vtec kicks in too early for an aftermarket IM on a stock ECU which causes it to bog </TD></TR></TABLE>



obdI [gsr ecu] will work fine

 

I think you need that for smog..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B series FTW &raquo;</TD></TR><TR><TD CLASS="quote">I think you need that for smog..</TD></TR></TABLE>
negative

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B series FTW &raquo;</TD></TR><TR><TD CLASS="quote">I think you need that for smog..</TD></TR></TABLE>
The canister is under the battery

 

Yeah the air/fuel maps for a GS-R w/ dual-runner intake manifold are going to be totally wrong for use with a single-runner manifold. You'll definitely need some sort of provision for tuning, either a V-AFC or Hondata, or even a different ECU.

 

I put a new IM on my 99 GSR last year...i kept the stock ECU and it ran fine without the secondaries

 

you do not need it if you have a new i.m. just take the plastic canister out and bypass the vacume hoses

 

no it doesnt,ive inslatted plenty of aftermarket im's,