OK tonight i tookout my sub box so I could test to see how much 'peppier' my car would feel(that **** is staying out) .. well i ran into a civic and when we were racing I swear I felt my engine lose power right before it hit vtec... like your normal engine would sound like this wahhhhhhhhhhhhhhh-AHHHHHHHHHHHHHHHH .. the second part being when vtec kicks in.. well my car was sounding like this wahhhhhhhhhhhhh-ah-AHHHHHHHHHHHHHHH...

any ideas what could be wrong?

bad tuning or what?

I have i/h/e, cam gears, v-afc, denzo plugs..

 

FYI

the audible change in intake/exhaust noise are the intake runners, not cam crossover. You can hear the cam crossover, but it's just not as distinct.

 

well what I'm saying is it doesn't sound like it should.. it seems like there is a slight loss in power for a second...it doesn't seem normal.. that's all i'm saying.. is it a fuel problem? is my v-afc messing something up? is it a problem with oil? i'm clueless i don't need to be informed of what the REAL sound is from.. i feel a loss in power where my engine almost sounds like it cuts off for 1/2 a second..

 

Your VTEC engagement point is probably too early.. what RPM does it kick in at?

 

i'll have to check the v-afc i remember they lowered it when i got it dynoed.. guess they don't know what they are doing.. i'll get back to you on that..

 

no no no, there's nothing wrong with your v-afc. I've noticed the same thing happening with my car sometimes. It feels like a dip in the powerband right before you hit VTEC (at least in my car, since I've got the b17a). The only explanation I can come up with is that it usually happens when its extremely humid outside, so I attribute the power loss to the weather.

 

Have you checked your maintenance? How many miles are on the car?

 

haha I aint sure about the problem but just wanted to make a quick comment on your post.. haha I love the way you explained the vtec part.. wahhhhhhhh-AHHHHHHHHHH~~~!! i love that sound

 

yes I am at 38000 miles and I got my 30k maintenence.. around 33k.. and about the vtec engaging too early.. i didn't remember the exact numbers but it was like 4500-4800?
seems kinda low.. but that's what they set it at when I got my car dyno-tuned

 

Look @ your dyno graph and see if there are any dips on the curve. If you still have the stock GSR cams you should leave your vtec x-over point stock. That would be 4400 rpm. Go to your V-AFC and set L->H 4400 & H->L 4000, that's about stock I think. You should only use a different vtec point if you upgrade cams. Good luck.

 

check yer oil pressure.....are u due for an oil change? vtec has a lot to do with oil.....good luck