Hey,

Is there any way to make VTEC kick in earlier?

 

vafc vtec controller i believe apexi makes it.

 

can i make vtec kick in at say 3500 rpm?? is it safe? can the engine handle it?

 

If I remember correctly from old posts/threads,

Changing the Vtec range with the Apex-i controller does not provide much of a gain, a mere 1-3 horses. I believed the reasoning was that Acura tuned our cars optimally from the factory already.

 

I believe 4700 or 4800 is the lowest you can do it without having the CEL light turn-on. It shouldn't damage the engine because all you are doing is just forcing the more aggressive cam-lobe but who knows

 

I dont think the horsepower gain is the benefit. Rather, you increase the power-curve by having the aggressive cam-lobe engage earlier.

 

oh well i have a CLP, i think it kicks in at 5500, i can feel the power increase, thats why i was wondering if i can get it to do the same at 3500

 

You could but CEL light well come-on whether it causes damage i can't say for sure.

 

this might be a stupid questoin, but whats CEL?

 

Woops, i'm really sorry. Check Engine Light

 

u wouldn't really want it to kick in earlyer. it's not like a turbowhere u can up the boost. basicly, when the vtec kicks in, the valves stay open longer. at low rpm, if the valve stays open to long, u can bend a valve and ruin ur engine. Vtec gives u the best of both worlds, low end torque and high end power. Ever hear a hot rod? it sounds like shit because they are set for high end power.

 

i think the earlyest u can sent the vtec controller is 5000 rpm

 

Changing the VTEC switchover point to a lower engagement point will not do much at all in terms of performance as the system operates on a low cam lobe and high cam lobe principle. The ECU fuel delivery and timing for the low cam lobe is different from the High cam lobe, thus switching to 3500 rpm will only waste fuel and may throw a CEL, although I have not experienced this code error when tuning my previous Lude.

 

ooooo okie, thanks guys. I guess i'll just have to get a CAI then...

 

lol I just got my new tl the first time I took it out to see what the power felt like my cell was going nuts scenes then if I fell like smoking a ricer it does not come on but then again if it flash thears to much load that's all nothing to worry about its just the ecu telling you to calm down a bit cus it can't keep up with motor idk my tl is kinda crazy for be stock

 

sick bump

 

Hooked on phonics worked for me.

And, yes, fantastic first post!

 

WhaaaaaDaFuck u just say??

 

we need a translator!!!!WTF

 

I blame social media.

 

Means you'll lose some torque down low which is what you need at that time. The people that engineered these engines know what they're doing. There isn't a huge advantage to bringing it on earlier and the amount of work and money required simply isn't worth it. I'd spend my money elsewhere.

 

Why don't you drink everything beneath the kitchen sink..

 

Also.. for the hundreds of derps who find this thread now.. engage vtec earlier by doing this:



Warning.. you might not be prepared to handle the power.. yo.

 

its actually been shown that it makes more power by raising it, not lowering it.

 

Believe it or not my phone auto corrects what ever I type and makes me sound like I have all of three teeth and I drink antifreeze