V-tec Wiring

[speedyinteg]

anyone have an idea how to run a vtec with the summit racing rpm activated switch (part#83449)? I heard you have to convert the negative trigger to +12V because the output the rpm switch put out is negative...does anyone know to conect the five cable (red,black,white,yellow,gray) and make the vtec work?
thanks

 

[physician]

i have just one question for you. if you activate your vtec with a rpm sswitch, how will you have the right timing and gas when the vtec comes in? if you don't give more fuel, you will running to lean. correct me if i'm wrong.

 

[D16z6CrxDx]

you will be running lean but u will get a more power just not all the power that vtec gives....

 

[E_SolSi]

if you lean out too much your going to detonate and fuck your engine up
do it the right way

the cheap way is never less expensive in the end

 

[lilthom]

 

[D16z6CrxDx]

you CANT blow the motor becaseu of starving it fues at vtec just because the fuel diff is a jump but not a huge one that will make u detonate...add on more things like bolt ons NOS or boost..and there u have a point, but all motor there is now way u will blow the motor unless ur using an HF ecu which i higly highly doubt he is using