Is this vtec normal?

[manrag]

I made post earlier about how to make vtec louder, ive got a video to show u guys, is this how the vtec should sound? to me i can hardly hear it coming in...

http://s1224.photobucket.com/albums/ee379/manrag90/?action=view&current=VTEC.mp4

[THEEYA]

It's not very loud, you need to tell us what mods your car has

[manrag]

its got a mugen CAI and exhaust system with headers, thats all i know because i bought the car already modded, heres a pic of the engine:

http://s1224.photobucket.com/albums/ee379/manrag90/?action=view&current=VTEC.mp4#!oZZ2QQcurrentZZhttp%3A%2F%2Fs122 4.photobucket.com%2Falbums%2Fee379%2Fmanrag90%2F%3 Faction%3Dview%26current%3D10531611.jpg

[dougie_504]

Sounds fine. Can you just learn to live with it? As was said B18~ VTEC isn't as loud as B16A VTEC, probably because it produces more torque/better torque curve. A huge VTEC crossover isn't necessarily a good thing.

[manrag]

whats the difference between b18 and b16? and how do you knw which one you have?

[Oz_Striker]

B18 is a 1.8 litre, B16 is a 1.6 litre. As said above you wont usually hear the VTEC crossover as much in a B18 as you will in a B16 depending on modifications due the B18 having more power down low and therefore it has a more linear power band (which basically means when you look at it on a graph the power rises more evenly in a curve), where as the B16 has less power down low and so when VTEC kicks in it there is a large jump in it's power band and so it sounds louder.

There will be an stamped letter and number on your engine block that will tell you which motor you have.

[JDM-EGG]

THJAT IS NOT NORMAL , CHECK UR OIL LEVEL AND UR VTEC SOLINOID .. trust me ive been in many b18 type rs and does not sounds like that .. i cant even hear any vtec kick in. with mugen cai and exhaust u will hear vtec mate..

[anzai]

you might need to adjust ignition timing (distributor angle) and do an ecu reset for the ecu to find the best settings and adapt to the new induction and exhaust system.

to reset the ECU:
http://www.team-integra.net/sections/articles/showArticle.asp?ArticleID=82

to adjust timing:
http://www.hondaclub.com/forum/articles/2960-how-adjust-ignition-timing.html

if you're unsure of how to adjust the timing, speak to your honda mechanic as you don't want it to result in excessive knocking/pinging which can destroy your pistons and valves etc.

[manrag]

sorry im really noob with engines and stuff, where do i check the oil in the engine?

[JDM-EGG]

sorry im really noob with engines and stuff, where do i check the oil in the engine?

lol are u serioues bro..

[dougie_504]

sorry im really noob with engines and stuff, where do i check the oil in the engine?


No offence intended but if you don't know how to check the oil in your engine, or even what engine you have, then I think the volume of your VTEC crossover should be the last thing you address.

[DC2-PWR]

Google it.

[GSi_PSi]

internally stock b16a doesnt have a louder crossover than internally stock b18cR, changing to more aggresive camshafts, bigger throttle body and intake manifold will make your vtec engagement
more pronounced

[migoreng]

B18 is a 1.8 litre, B16 is a 1.6 litre. As said above you wont usually hear the VTEC crossover as much in a B18 as you will in a B16 depending on modifications due the B18 having more power down low and therefore it has a more linear power band (which basically means when you look at it on a graph the power rises more evenly in a curve), where as the B16 has less power down low and so when VTEC kicks in it there is a large jump in it's power band and so it sounds louder.

Before a tune my BB6 stock crossover was noticable in a 2nd gear pull....However after at tune it wasn't.

After tune acceleration video clips.
http://www.youtube.com/watch?v=W_y8VSA_bc4

http://i237.photobucket.com/albums/ff47/migoreng1/dyno/DSC01697.jpg

[Mr.PT]

hey isnt that pic of a fellow members ride before?
i think it was mwaku?

[l33t]

Yeah it was mwaku. Dude trust me, vtec should be way louder, get it checked man.

[Oz_Striker]

Before a tune my BB6 stock crossover was noticable in a 2nd gear pull....However after at tune it wasn't.

After tune acceleration video clips.
http://www.youtube.com/watch?v=W_y8VSA_bc4

http://i237.photobucket.com/albums/ff47/migoreng1/dyno/DSC01697.jpg

Look at the power band, thats what i was talking about. Because of your mods and the tune, you've got more mid range power out of the engine before vtec kicks in, and so there is a smoother crossover when it does. Different engine though, but the same concept

[migoreng]

Look at the power band, thats what i was talking about. Because of your mods and the tune, you've got more mid range power out of the engine before vtec kicks in, and so there is a smoother crossover when it does. Different engine though, but the same concept

the question is, does the OP have a stock ecu or is it tuned? Ask mwaku for more details cause I think that's his old car...I remember seeing pics of the mugen intake and stuff at JDMyard....the OP also needs to learn the basics such as checking oil level... lol

If it's not tuned then it shouldn't have a power curve as straight as mine so the VTEC engagement should be noticable.

[GSi_PSi]

every motor is different, ive found vtec is loud when the temperature is cold and its softer when its hotter

[dougie_504]

every motor is different, ive found vtec is loud when the temperature is cold and its softer when its hotter


Not so sure about louder when cold in my experience, but I agree it's quieter when hot so by comparison yes.

[Oz_Striker]

the question is, does the OP have a stock ecu or is it tuned? Ask mwaku for more details cause I think that's his old car...I remember seeing pics of the mugen intake and stuff at JDMyard....the OP also needs to learn the basics such as checking oil level... lol

True, OP certainly does need to learn a bit about the car, or about cars in general lol


If it's not tuned then it shouldn't have a power curve as straight as mine so the VTEC engagement should be noticable.

Agreed :thumbsup:

[jeremydawg]

No offence intended but if you don't know how to check the oil in your engine, or even what engine you have, then I think the volume of your VTEC crossover should be the last thing you address.

+1.
If you want a louder crossover if you like i can swap you my 93 b16 civic for your ITR

[davidvtec]

No point discussing this thread if OP doesnt know anything about checking his own oil lol

[Zilli]

ok... you have a problem mate... there is no cutover. a B18c7 will have a noticable swapover from low to high cam at about 5700... there should be a chanGe in engine note, and there isn't.

Now, you either have an oil pressure problem, check your oil level (although if it was low enough to affect high cam engagement you'd probably seen your engine oil light)... try it anyway. Look in your manual to see how to check, otherwise the dipstick is found in the front of the engine near the headers, pull that stick out, give it a wipe down, then put it back in and take our. There are two lines, your oil level should read between those lines, if it isnt, go and get some appropriate oil, and top it up. The amount of oil between the two lines is 1 litre for your information.

The next question is, was that video recorded when the engine was at operating temperature? (ie. the water temp needle is as just under halfway?). If it was, then you need to check your VTEC Solenoid.

Now, given your inexperience with vehicle maintenance, i recommend you take it to a mechanic and explain the issue you are having. A specialised Honda mechnic like Hanny's etc would be your best bet.

In the meantime, take some time to learn about your car and cars in general, best way to do it is read, and try.

In the meantime, this is going to be a second thread of yours that has gone to shit, and unfortunately it's not your fault. I am leaving this open, but will be viewing it over the next 24 hours waiting for your response. anyone who contributes rubbish here will get an instant infraction.

Stay on topic, be helpful, or piss off somewhere else... first and final warning

[jeremydawg]

In the "noob forum" thread you can find useful information about cars, read up on there to get some knowledge about how things work

http://www.ozhonda.com/forum/showthread.php?47304-New-to-cars-see-here

Also if you want to learn things for yourself check out the DIY section, theres heaps of useful info on things you can do to maintain your car.

For now try and figure out whats wrong, like zilli said your better off taking it to a mechanic.

[string]

I hear VTEC at 5700 as expected.

A B18C on the low-cam does not get faster after 5000rpm.

[Bludger]

I can hear the cross over in that video.

sounds like a perfectly normal functioning engine.

Like string said @ 5700. The difference in tone is very pronounced.

[dougie_504]

Yep I can hear it too

[anzai]

i just noticed you dont seem to be accelerating quite quickly, so you must be in a higher gear?

with my dc2r vtec isnt as loud on third gear in contrast to first or second. lets say youre creeping up from 40 to 80, if i do it in second gear i can hear more crossover compared to if i was to do it in third

[EG8 CIVIC]

my single cam AUTO vtec cross over is louder than that (no offence but im being realistic) mite wana start at a lower gear and film again.

good luck with this

[dougie_504]

my single cam AUTO vtec cross over is louder than that (no offence but im being realistic) mite wana start at a lower gear and film again.

good luck with this


As said earlier (I guess you didn't read the thread), this is due to your engine being a 1.6L and therefore producing less torque at the low-end, so when your auto VTEC kicks in bro there's a bigger 'jump' in torque. Because the B18C makes more torque the 'jump' is less noticeable and so the VTEC crossover is smoother.

This is why B16A's also have a loud crossover.

[Vvvtec]

This VTEC is fine, sounds quiet good actually :)

[Bludger]

As said earlier (I guess you didn't read the thread), this is due to your engine being a 1.6L and therefore producing less torque at the low-end, so when your auto VTEC kicks in bro there's a bigger 'jump' in torque. Because the B18C makes more torque the 'jump' is less noticeable and so the VTEC crossover is smoother.

This is why B16A's also have a loud crossover.
single cam = very quiet

[dougie_504]

single cam = very quiet

My D16Y1 is very distinguishable, but the tone is not as high pitched or aggressive as a DOHC B.

[aznstyler]

doesnt sound like vtec is crossing over at all. check your solenoid

[Vvvtec]

What is with everyone? Crossover is clear as...

[Bludger]

What is with everyone? Crossover is clear as...
Everyone is Vtec y0~

[Vvvtec]

Seems like it.

[Chernoby1]

Also seems people havent mentioned it, but using premium unleaded makes a considerable difference in my car =]

[Vvvtec]

You shouldn't be using anything other than premium unleaded in a B series anyway.

:)

[V73C]

umad posted this on another thread, just thought i'd share it, but listen cos its not CRAZY VTAK YO like how your expecting

http://www.youtube.com/watch?v=LMVGz4eZgZA&NR=1&feature=fvwp

[Super-DA9]

I can hear it, sounds fine to me. trust me dude if it wasn't working you'd feel a big power loss up top as apposed to before. I definitely noticed when mine stopped engaging lol.

[TheSaint]

hrm its hard to tell from the video - i would make one from a solid stand still and hit full throttle and redline in first and second gears (staying within the speed limit of course)

VTEC will only engage when the engine is warmed up - it relies on oil pressure - therefore VTEC will just not operate for about the first 15mins of running the car
a general rule of driving is to warm the car up for 15mins before pushing it hard anyway

u could take it to honda and get the vtec solonoid and wiring for vtec checked up too

u can read up on resetting the ECU and see if that helps

u could check the oil and make sure u are running a good quality oil - Honda FEO 10w30 is a good place to start lol

from what i can hear in that video either the clutch slipped or u clutched in before vtec engaged and it free-reved up
either that or the video is just such bad quality its hard to tell whats happening

[Bludger]

this is getting annoying.

can hear CLEARLY

[Vvvtec]

this is getting annoying.

can hear CLEARLY

I'm not kissing Bludger's arse here, but he's soooo right.

Ffs it's plain as day. Close your eyes and just listen you can DISTINCTLY hear it crossover.

Rather than listen for the crossover, just listen for the change in tone.

[MWAKU]

LOL @ this thread. check ur inbox bro

[TheSaint]

closed