VTEC
Thread Starter
Joined: Feb 2007
Posts: 14
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From: Scottsdale, AZ, USA
VTEC
I have a Civic 01 EX Sedan (Auto Transmission) VTEC engine (D17A2)....why can't I hear VTEC??? is there something I should do to enable it or something? or what RPM range should I reach to be able to hear it??? I'm confused...someone tell me what I should do or know about VTEC for this car...thanks.
- Rich
- Rich
Thread Starter
Joined: Feb 2007
Posts: 14
Likes: 0
From: Scottsdale, AZ, USA
do you know if there's any way I can adjust the VTEC to get higher gain?? the only thing I want from my car is the VTEC sound...and I'm not getting it....what do I do???
I already have a AEM V2 Intake and it produces a really nice engine sound, but I don't notice VTEC at all...but of course I heard it in my brother's Prelude...i even installed a 5-bolt AEM cam gear...but I don't hear VTEC still...
...does anyone else that has the same car hear VTEC?
I already have a AEM V2 Intake and it produces a really nice engine sound, but I don't notice VTEC at all...but of course I heard it in my brother's Prelude...i even installed a 5-bolt AEM cam gear...but I don't hear VTEC still...
...does anyone else that has the same car hear VTEC?
B*a*n*n*e*d
Joined: Sep 2006
Posts: 383
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From: Illinois
Re: (toyomatt84)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by toyomatt84 »</TD></TR><TR><TD CLASS="quote">VTEC kicks in at 2700 rpm's. You're probably not hearing it, because there's not a huge gain from when it kicks in.</TD></TR></TABLE>
vtec kicks in at 4400 buddy
this isnt the k20a3
vtec kicks in at 4400 buddy
this isnt the k20a3
B*a*n*n*e*d
Joined: Apr 2006
Posts: 844
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From: Lewisvill, Texas, United States
Re: (sujak)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sujak »</TD></TR><TR><TD CLASS="quote">
vtec kicks in at 4400 buddy
this isnt the k20a3</TD></TR></TABLE>
It is vtec-e tho buddy, I think matt is right. Dont hold me to it tho
vtec kicks in at 4400 buddy
this isnt the k20a3</TD></TR></TABLE>
It is vtec-e tho buddy, I think matt is right. Dont hold me to it tho
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B*a*n*n*e*d
Joined: Sep 2006
Posts: 383
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From: Illinois
Re: (brjhnson)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brjhnson »</TD></TR><TR><TD CLASS="quote">
It is vtec-e tho buddy, I think matt is right. Dont hold me to it tho</TD></TR></TABLE>
no it definatly comes in at 4400
btw it wont "engage" or w/e unless the car is under the right conditions IE right RPM and right temperature
it sounds sad but carefully listetning i can hear mine come in.. (than it whips me to mah seat yO!)
It is vtec-e tho buddy, I think matt is right. Dont hold me to it tho</TD></TR></TABLE>
no it definatly comes in at 4400
btw it wont "engage" or w/e unless the car is under the right conditions IE right RPM and right temperature
it sounds sad but carefully listetning i can hear mine come in.. (than it whips me to mah seat yO!)
Honda-Tech Member
Joined: Oct 2003
Posts: 2,276
Likes: 1
From: Abbotsford, B.C., Canada
Matt is correct about Vtec engagement, if u dont believe him go read the FAQ.
You will never find big gains from out engine, nor will u hear Vtec engage like the old DOHC VTec's. If u want to hear it engage hard.
But an older honda with a DOHC Vtec, or an RSX-S.
You will never find big gains from out engine, nor will u hear Vtec engage like the old DOHC VTec's. If u want to hear it engage hard.
But an older honda with a DOHC Vtec, or an RSX-S.
B*a*n*n*e*d
Joined: Sep 2006
Posts: 383
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From: Illinois
Re: (Vantage)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vantage »</TD></TR><TR><TD CLASS="quote">Matt is correct about Vtec engagement, if u dont believe him go read the FAQ.
You will never find big gains from out engine, nor will u hear Vtec engage like the old DOHC VTec's. If u want to hear it engage hard.
But an older honda with a DOHC Vtec, or an RSX-S.</TD></TR></TABLE>
from the faq
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Miracle »</TD></TR><TR><TD CLASS="quote">]To make VTEC happen, the ECU has to realize the following parameters from the sensors on the motor:
1 Your MAP (Manifold Absolute Pressure) sensor must read 0hg (aka 0 inches of vacuum). When it reads this it will send a 3volt signal to the ECU.
2. Your throttle has to be open 100% because your TPS sensor has to send a 4.5-volt signal to the ECU.
3. Your coolant temp has to be at running temp.
4. Vehicle speed has to be above 20mph.
5. You have to have 65-80 oil psi.
6. The engine must be running at a minimum of 4500 RPM.</TD></TR></TABLE>
dont know why you guys tell me im wrong than point me to a faq that supports what i said. eh...
You will never find big gains from out engine, nor will u hear Vtec engage like the old DOHC VTec's. If u want to hear it engage hard.
But an older honda with a DOHC Vtec, or an RSX-S.</TD></TR></TABLE>
from the faq
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Miracle »</TD></TR><TR><TD CLASS="quote">]To make VTEC happen, the ECU has to realize the following parameters from the sensors on the motor:
1 Your MAP (Manifold Absolute Pressure) sensor must read 0hg (aka 0 inches of vacuum). When it reads this it will send a 3volt signal to the ECU.
2. Your throttle has to be open 100% because your TPS sensor has to send a 4.5-volt signal to the ECU.
3. Your coolant temp has to be at running temp.
4. Vehicle speed has to be above 20mph.
5. You have to have 65-80 oil psi.
6. The engine must be running at a minimum of 4500 RPM.</TD></TR></TABLE>
dont know why you guys tell me im wrong than point me to a faq that supports what i said. eh...
Member
Joined: Jun 2003
Posts: 1,751
Likes: 1
From: Washington, DC, USA
Ok.... having had a couple of these heads torn apart, and had the damn thing on the dyno with the ability to play with it..... it engages somewhere in the 2500-3000 range.
Look at the cam. Its got one big intake lobe, and one effectively useless one (its nearly round). It runs on 1 intake valve down low, then the pins lock the rockers together and it runs on both intake valves following the big lobe.
Mine's set at 2200.... and the curves are perfect.... refer to the bottom line at 7 psi
Compare to this one.... VTEC at 5200, 7 psi
or this one... no VTEC, 7psi
Ignore the dip at the start, its just the dyno picking up the load
Look at where the cam dies.... it would be idiotic to set VTEC at 4K, you'd lose power before you started gaining it.
Bottom line, you will not hear it, the car is in VTEC almost all the time.
Look at the cam. Its got one big intake lobe, and one effectively useless one (its nearly round). It runs on 1 intake valve down low, then the pins lock the rockers together and it runs on both intake valves following the big lobe.
Mine's set at 2200.... and the curves are perfect.... refer to the bottom line at 7 psi
Compare to this one.... VTEC at 5200, 7 psi
or this one... no VTEC, 7psi
Ignore the dip at the start, its just the dyno picking up the load
Look at where the cam dies.... it would be idiotic to set VTEC at 4K, you'd lose power before you started gaining it.
Bottom line, you will not hear it, the car is in VTEC almost all the time.
Re: (sujak)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sujak »</TD></TR><TR><TD CLASS="quote">
vtec kicks in at 4400 buddy
this isnt the k20a3</TD></TR></TABLE>
Nope, you've got the two mixed up.
https://honda-tech.com/zerothread?id=1689966
Check the service bulletins I posted.
vtec kicks in at 4400 buddy
this isnt the k20a3</TD></TR></TABLE>
Nope, you've got the two mixed up.
https://honda-tech.com/zerothread?id=1689966
Check the service bulletins I posted.
Junior Member
Joined: Mar 2007
Posts: 216
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From: Niagara Falls, On, Canada
It is vtec-e, so you wont hear the normal vtec sound when it kicks in, as its designed for fuel economy, not more power. I'm wondering with a stage 1 cam if you'd hear it or not, but its definitely not like a b or k series.
ftw
Joined: Jun 2007
Posts: 15
Likes: 0
From: Chester, UK, UK
You wanna hear tec kick in then buy a vti. The 1.7 coupe is just single cam...no power at all. I have the 1.7. I was gutted too buddy. My mate had a vti and I was like craaaaazy after 5,500rpm but then again the vti revs until about 8,200rpm or in that region. Im sure tec kicks in around 5,500rpm by the way. Type in vtec on youtube. There is a video explaining when it works and how it kicks in...
Re: (gordizzel)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gordizzel »</TD></TR><TR><TD CLASS="quote">You wanna hear tec kick in then buy a vti. The 1.7 coupe is just single cam...no power at all. I have the 1.7. I was gutted too buddy. My mate had a vti and I was like craaaaazy after 5,500rpm but then again the vti revs until about 8,200rpm or in that region. Im sure tec kicks in around 5,500rpm by the way. Type in vtec on youtube. There is a video explaining when it works and how it kicks in...</TD></TR></TABLE>
We don't get a VTi 7th gen. here in the USA.
We don't get a VTi 7th gen. here in the USA.
Member
Joined: Dec 2006
Posts: 1,177
Likes: 0
From: Burbz, of Illinois, Iran
Re: (Curiouz_G)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by homelessEm2 »</TD></TR><TR><TD CLASS="quote">i got an o4 ex and my car never ever comes out of VTAAAAAK!
D17A2 ftw</TD></TR></TABLE>
VTAK lmao well your problem is that ure drivin a sedan lol. i think the newer vtecs xcept for the civic si's are to get beter gas mileage not for performance. the preludes and civic si's have the better vtecs that you can actually hear. yours is proly jus for economy and better gas mileage.
D17A2 ftw</TD></TR></TABLE>
VTAK lmao well your problem is that ure drivin a sedan lol. i think the newer vtecs xcept for the civic si's are to get beter gas mileage not for performance. the preludes and civic si's have the better vtecs that you can actually hear. yours is proly jus for economy and better gas mileage.