Ohc 1.5 Vs Ohc Vtec

Sunilb · 16th September 2009, 12:16

My OHC Vtec is not working and has not been working since I bought it. Never knew it was'nt until Viper pointed it out to me.
Tried to get it work by cleaning the solenoid valve and even the circuits were thoroughly checked by an autoelectrical expert but in vain.
What could the error be?? Any advices??

pranavt · 16th September 2009, 15:29

Sunil, perhaps you need a new solenoid. Another thing to check is oil pressure. Buzz me when you're back in Mumbai...

OHC VTEC · 18th September 2009, 00:43

i wanted to know the avg of A/T and M/T 1.5

Shan2nu · 18th September 2009, 11:52

Quote:

But on your VTEC can you make out when it comes on?
I never feel the "surge" or change in pitch as many ppl claim to feel/hear.

All that happens is the increased roar because of higher RPM.

With the stock cam the switch over is very smooth and cannot be heard.

Shan2nu

alpha1 · 18th September 2009, 11:55

So the only way to know whether the vtec is working or not is by checking the diagnostic codes.

Ideally one should not feel the switchover to the aggressive cam from the meeker cam

I guess revving real high, but engine delivering low power (which incidentally will lead to you not touching the top speed at particular gear) is one way to determine whether the vtec is workign or not.
aint it?

pranavt · 18th September 2009, 15:16

The change in engine note is quite obvious actually.

Shan2nu · 18th September 2009, 15:52

Quote:

The change in engine note is quite obvious actually.

Atleast i've never heard it. Heres a vid i had shot when my car was bone stock, VTEC activates at around 35kmph in 1st, but you dont hear any distinct change in engine note.

YouTube - ohc vtec 0-100

In this vid, you can clearly hear the vtec kick in.

YouTube - vtec sound

Shan2nu

Sunilb · 23rd September 2009, 16:06

[quote=Shan2nu;1489980] VTEC activates at around 35kmph in 1st, but you dont hear any distinct change in engine note.

What RPM did the car hit when the Vtec got activated at 35kmph?

alpha1 · 23rd September 2009, 18:00

Quote:

Originally Posted by pranavt

The change in engine note is quite obvious actually.

as I said earlier - is it the VTEC sound or the intake/exhaust/high RPM everthing together that creates the illusion of change in note?

because even i have not really heard any real change in sound while at VTEC RPMs

silver_shadow · 23rd September 2009, 20:25

Quote:

Originally Posted by alpha1

as I said earlier - is it the VTEC sound or the intake/exhaust/high RPM everthing together that creates the illusion of change in note?

because even i have not really heard any real change in sound while at VTEC RPMs

as i understand VTEC kicking in will change the cam lobes. i don't think you can hear that happen

i guess it should be the engine note.

dhiman · 2nd November 2009, 06:48

For argument sake, will it be wise to sell off my 1.5 for a VTEC today considering the damage would be near about 1 lac? Or is it just not worth it?

Shan2nu · 2nd November 2009, 13:12

I dont think its worth it. For 1 lac, you can turn your 1.5 into a real rocket.

Shan2nu

pranavt · 2nd November 2009, 16:53

You could probably buy a VTEC engine for less. Or a VTEC head + ECU + miscellaneous for even lesser. Then turn that into a rocket

ankitahuja · 2nd November 2009, 17:38

Buy a better condition 1.3L and a Vtec engine..

Desmosedici · 8th September 2010, 18:37

bumping up an old thread again as it has been discussed in length.

I want to go for a Vtec but am not able to get too many in the mumbai market.
most models i am getting to se are 2001 models and i read that pre 2002 models have the jerking issue at lower speeds.

My dilemma is whether i should go ahead for a pre 2002 model and will it be ok.

Can the gurus help me please, GTO, Shantanu, your views would help me a lot.

Cheers,
Raj

16th September 2009, 12:16	#91
Sunilb BHPian Join Date: Mar 2009 Location: Dubai-Mumbai Posts: 85 Thanked: 4 Times View My Garage	My OHC Vtec is not working and has not been working since I bought it. Never knew it was'nt until Viper pointed it out to me. Tried to get it work by cleaning the solenoid valve and even the circuits were thoroughly checked by an autoelectrical expert but in vain. What could the error be?? Any advices??
	() Thanks

16th September 2009, 15:29	#92
pranavt Senior - BHPian Join Date: May 2008 Location: Mumbai Posts: 1,682 Thanked: 641 Times View My Garage	Sunil, perhaps you need a new solenoid. Another thing to check is oil pressure. Buzz me when you're back in Mumbai...
	() Thanks

18th September 2009, 00:43	#93
OHC VTEC BHPian Join Date: Aug 2009 Location: DUBAI-MUSCAT-MUMBAI Posts: 66 Thanked: 3 Times	i wanted to know the avg of A/T and M/T 1.5
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18th September 2009, 11:55	#95
alpha1 Senior - BHPian Join Date: Apr 2007 Location: LandOfNoWinters Posts: 2,093 Thanked: 2,605 Times	So the only way to know whether the vtec is working or not is by checking the diagnostic codes. Ideally one should not feel the switchover to the aggressive cam from the meeker cam I guess revving real high, but engine delivering low power (which incidentally will lead to you not touching the top speed at particular gear) is one way to determine whether the vtec is workign or not. aint it? Last edited by alpha1 : 18th September 2009 at 11:58.
	() Thanks

18th September 2009, 15:16	#96
pranavt Senior - BHPian Join Date: May 2008 Location: Mumbai Posts: 1,682 Thanked: 641 Times View My Garage	The change in engine note is quite obvious actually.
	() Thanks

23rd September 2009, 16:06	#98
Sunilb BHPian Join Date: Mar 2009 Location: Dubai-Mumbai Posts: 85 Thanked: 4 Times View My Garage	[quote=Shan2nu;1489980] VTEC activates at around 35kmph in 1st, but you dont hear any distinct change in engine note. What RPM did the car hit when the Vtec got activated at 35kmph?
	() Thanks

2nd November 2009, 06:48	#101
dhiman BHPian Join Date: Nov 2006 Location: Kolkata Posts: 95 Thanked: 4 Times	For argument sake, will it be wise to sell off my 1.5 for a VTEC today considering the damage would be near about 1 lac? Or is it just not worth it?
	() Thanks

2nd November 2009, 13:12	#102
Shan2nu Senior - BHPian Join Date: Feb 2004 Location: Hubli - Karnata Posts: 5,533 Thanked: 125 Times View My Garage	I dont think its worth it. For 1 lac, you can turn your 1.5 into a real rocket. Shan2nu
	() Thanks

2nd November 2009, 16:53	#103
pranavt Senior - BHPian Join Date: May 2008 Location: Mumbai Posts: 1,682 Thanked: 641 Times View My Garage	You could probably buy a VTEC engine for less. Or a VTEC head + ECU + miscellaneous for even lesser. Then turn that into a rocket
	() Thanks

2nd November 2009, 17:38	#104
ankitahuja BHPian Join Date: Oct 2006 Location: Gurgaon Posts: 921 Thanked: 94 Times View My Garage	Buy a better condition 1.3L and a Vtec engine..
	() Thanks

8th September 2010, 18:37	#105
Desmosedici Senior - BHPian Join Date: Nov 2009 Location: White Village Posts: 1,484 Thanked: 586 Times View My Garage	bumping up an old thread again as it has been discussed in length. I want to go for a Vtec but am not able to get too many in the mumbai market. most models i am getting to se are 2001 models and i read that pre 2002 models have the jerking issue at lower speeds. My dilemma is whether i should go ahead for a pre 2002 model and will it be ok. Can the gurus help me please, GTO, Shantanu, your views would help me a lot. Cheers, Raj Last edited by Desmosedici : 8th September 2010 at 18:38.
	() Thanks