i have already seen mixed reviews of changing the vtec engagement point. i have been recently shown that if you send 12v power to the vtec solinoid(i cant spell for ****) you can actually make it engage as low as idle. the only downfall is the cel that comes up, and the fact that for some unknown reason the rev limiter initiates at 5500 rpm instead of 7500. how accurate are the stock tach.s by the way. all this is on a 98 d16y8 stock. only aftermarket is fart can and cheap intake

 

I really dont understand why you would want to do that. VTEC is not like nitrous.

Now after reading that I would think that having VTEC on at a low rpm would make your engine run worse. It engages at a high rpm for a reason. Please someone correct me if im wrong. WikiPedia cant teach you everything!

 

You are absolutely correct, cbaber. Vtec in two words is like having two cams - one for low rpm, and one for high. Using high rpm cam for low rpm is not going to do you any good.

 

i wouldn't mess with ur vtec engagement point. the engineers at Honda have it set at a certain rpm for a reason. optimum performance and reliability.

 

Yeah I never understood why people change the engagment point. It's set where it should be.

 

1. I don't see why ppl do it either.
2. If your going to do it anyway then get a vtec controller, it's got to be safer than trying that 12v trick.

 

Sometimes you just blow the engine to say "well, I guess I shouldnt have dont that"... very effective teaching but hard on the wallet

 

i'll give ya reliabilty but i dont think they engineered all the Civic for high perfromance right outta the factory

but i wouldn't mess with it either man, seems like the more power you got the, the less reliable it is and vice-versa

 

Again, one can try to play with it around original engagement point a few hundreds rpms up or down and see if he likes his middle band power better this way, but moving the point all the way down to the idle does not make any sense at all and effectively eliminates ALL the advantages of vtec.... You might as well get non-vtec head and install racing cam - the same result