I need to know how to wire up the Vtec in my si , I bought an h22a J-spec and the ecu
now i need some help or info on how to wire the vtec or is the plug already in my car im using my h23 wires and is it true that with the jspec ecu i cant go past 118 mph because of a govner?

 

you have to wire 2 wires, vtec solinoid valve, and vtec oil pressure switch... search i fact for ecu wiring..

And yes, there is a speed limit in the jdm ecu

 

Answered in your duplicated post.

 

you can get rid of the speedlimiter

These are the ways to get rid of the speed cut off in the jdm ecus

1. a fields sfc (which I have one for sale) http://cgi.ebay.com/ebaymotors...d=1,1
2. chip
3. hks sld (speed limiter defencer)
4 switch ecus usdm or hondata
5. apexi rev speed meter

 

so i have to buy the vtec controller and chip my ECU. or can i just get a USDM ECU
which one is better is there going to be a difference in performance if i just get the us ecu

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skylude23 &raquo;</TD></TR><TR><TD CLASS="quote">so i have to buy the vtec controller and chip my ECU. or can i just get a USDM ECU
which one is better is there going to be a difference in performance if i just get the us ecu </TD></TR></TABLE>

US ECU = stock. No gain in performance over the JDM ECU, but at least it'll go 120 if you feel a need to.

 

thats wierd my boy has an 94 h22 and he went 135 on his but that could be because he had a vtec controller ,so getting that will increase your top end speed?

 

Dude.
Usdm P13= no limit
Jdm P13= limit.

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