Ok I friend of mine had a JDM D15 Vtec and he had dpfi on it. And it also had a toggle switch to engage vtec. I was wondering if its safe to run a vtec head with a dpfi set up? Im going to convert it to mpfi soon but I cant till my friend helps me. Will the dpfi give enough fuel to be safe? Thanx for the input.

 

DPFI on a vtec head ....I would think 2 injectors are not going to provide enough fuel for one that was designed to run four. Especially on a vtec engine that makes around 120hp compared the the dx that makes only 92

 

You can do it but disable vtec..If you hit vtec with dpfi,and dx ecu you'll run real lean and probably blow up the motor..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civic &raquo;</TD></TR><TR><TD CLASS="quote">makes around 120hp compared the the dx that makes only 92 </TD></TR></TABLE>

Not like this it won't..... it's running the fuel and ignition curve that go along with the DPFI.... Hell, it's even a 1.5 liter like the stock motor.....

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">You can do it but disable vtec..If you hit vtec with dpfi,and dx ecu you'll run real lean and probably blow up the motor.. </TD></TR></TABLE>