prelude2.2

my civic is a 00 si bone stock besides my greddy evo2 cat back and my problem is my vtec does not sound that loud even if i open my air box i looked under my car and noticed that my muffler pipeing is super pinches looks like a worm can berly squeeze by could that be my problem?

Dc4LsTeG

iTrader: (7)

Uhh yea does your car drive weird? You have a pic of how pinched it is?

jbpnoman

Please tell me we're being trolled.

VTEC isn't a BOV. VTEC isn't an afterburner. You're running a cat back on stock piping. You're running a stock intake. No, it isn't going to be loud, period.

furious94ls

purgat0ry

iTrader: (3)

furious, I lolled hard.

Thanks, now my coworkers think im a lunatic

Serious though, if VTec engages, it's working, Don't expect warp speed.

Red_Army

warp speed? i always go plaid when vtec kicks in.

if you can hear it, it works. but that pinching is bad. take pics of it. and most likely replace those sections.

jbpnoman

Money says the pinching is from OP either slamming his car, or jumping it and slamming the ground.

Bix VT

Take a picture of the damage and post it up. But VTEC isn't the kick of nitrous that some people think, and if your car is unmodified, it won't be very loud either.

deving916

iTrader: (2)

are you using synthetic vtec fluid?

RT_NEWYORK

I have an actual bone stock (survivor) 2000 em1 . I can hear vtec engage at 5600 rpms. If you are not hearing a change over check your oil also if the engines cold it might not engage.

gold_pwr_r4ng3r

lmfao

grumblemarc

iTrader: (4)

If you can get it past 5600 RPMs there's nothing wrong with it. I've never heard of "weak" VTEC. It either engages or it does not.

prelude2.2

U can hear it berly my boy has a si bone stock and it rips way harder

ritesh

LOL

jdmcx

get you one and you might be able to turn it up (sideeye)

grumblemarc

iTrader: (4)

And this makes what difference to the performance?

jdmcx

your boy is lying to you

doood

iTrader: (1)

you and your boy are idiots

Dc4LsTeG

iTrader: (7)

Of course, everyone knows that the louder your vtec is the faster your car is.

gold_pwr_r4ng3r

i laughed so hard when i read this

2LEM1

iTrader: (1)

It's possible your high lobe isn't engaging. Do you have and check engine lights on? How's your oil level?

nealnanoHX

LOL so does mine, it cracks hard and loud. LS Vtec stock motor stock B16 head, B16 cams, IHE and Vtec is very noticeable when it kicks in.
On a stock car with no header or intake and a quiet exhaust like the Evo2 your Vtec will be quiet. Remember cars are made to be as silent as possible, most consumers dont want a loud car.

Red_Army

you have 2mm more of piston in comparison to even the biggest stock vtec motor. so of course yours hits hard.

furious94ls

LOL, glad you guys liked that pic.

Anyway, VTEC should be a smooth transition. You are making the most amount of power on the primarly lobes until the very last second, then the cam switches to the higher profile and builds power.

If you are hearing or feeling a big difference in VTEC you aren't properly tuned. On a stock car you really shouldn't be able to hear/feel it. If you have bolt ons the transition is louder and can be heard.

Considering the car has an improper exhaust setup it will definatly hinder performance. Take pics of the exhaust. Sounds like you have a crush bent system that may be too small for your motor.

RT_NEWYORK

I literally just got home from work and was thinking about this post. I put my Em1 into vtec numerous times on the ride home. To me, vtec engagement is very distinct and loud. I can hear clearly when it switches. My car is stock. If you cant hear your vtec engage its probably not switching over, or your music is too loud lol