Vtec - HondaClub.com

frankjt96 · 11-06-2006, 04:19 PM

I know the idea of Vtec, a cam that has the extra lob on it for more intake valve thingy, but im not 100% sure if thats what it actually is

. could someone please thorughlly (sp?) explain it to me? thanks.

**TJ213** · 11-06-2006, 04:28 PM

Basically, from what I understand, it lets more air into the engine in both intake and exhaust.

The old systems used oil pressure to activate. I think the new ones use some sort of computer system.

for a complete understanding go to http://auto.howstuffworks.com/question229.htm

frankjt96 · 11-06-2006, 04:41 PM

does vtec come in only dohc or sohc too? also ive heard that its possible to take a non vtec engine and just replace the cam shaft with a vtec cam shaft, is this true?

**TJ213** · 11-06-2006, 05:26 PM

There are VTEC sohc engines, like that in the del sol si

I think you have to replace the head, which involves a lot of other work as well.

The best way to get VTEC is to do an engine swap, or just buy a car with VTEC in it.

frankjt96 · 11-06-2006, 05:54 PM

yeah i was just confused as to what it was, i don't plan on doing anything further with my honda. the way it is is the way its gonna stay. i just bought a real nice golf 4 door with a vr6 swap. it'll whoop on anything. you name it... ferrari's, porche, lambo's, lol. jk. i wish that would be awesome.but the car has a real nice amount of power. 190 whp. 0-60 in my guess of 7-9 seconds, ive gotten it up to 160, got scared, and slowed down. lol it was in low RPM 5th gear and still had power to keep accelerating.

AP1fun · 11-06-2006, 07:30 PM

VTEC changes the cam profiles on each cam by a computer controlled sensor. You do need to have enough oil pressure to be able to engage VTEC and if the air is to dense VTEC will not engage either. Howstuffworks.com is the best place to look for your understanding. I believe they have a diagrap of how it works.

boxcarracer0260 · 11-08-2006, 02:16 PM

i am getting ready to do a mini-me swap....let you guys know how it comes out and i will have lots of pics too.

white94accordex · 11-11-2006, 07:06 PM

http://videos.streetfire.net/search/...52f982ed3a.htm
this is a video of vtec working it is actually very interesting....

**TJ213** · 11-11-2006, 10:42 PM

So thats how it works, I never thought that that is actually what happens, good video

F20A4 · 12-21-2006, 06:31 PM

That link doesnt work for me

11-06-2006, 04:19 PM	#1 (permalink)
frankjt96 Member Join Date: Aug 2006 Location: twin cities, Minnesota United States Posts: 40	Vtec I know the idea of Vtec, a cam that has the extra lob on it for more intake valve thingy, but im not 100% sure if thats what it actually is . could someone please thorughlly (sp?) explain it to me? thanks. __________________ -Tyler

11-06-2006, 04:28 PM	#2 (permalink)
TJ213 I've earned a Custom Title Join Date: Oct 2006 Location: Carlisle, Pennsylvania United States Posts: 1,635	Basically, from what I understand, it lets more air into the engine in both intake and exhaust. The old systems used oil pressure to activate. I think the new ones use some sort of computer system. for a complete understanding go to http://auto.howstuffworks.com/question229.htm __________________ Comma Club Member #1 Last edited by TJ213; 11-06-2006 at 04:31 PM.

11-06-2006, 04:41 PM	#3 (permalink)
frankjt96 Member Join Date: Aug 2006 Location: twin cities, Minnesota United States Posts: 40	does vtec come in only dohc or sohc too? also ive heard that its possible to take a non vtec engine and just replace the cam shaft with a vtec cam shaft, is this true? __________________ -Tyler

11-06-2006, 05:26 PM	#4 (permalink)
TJ213 I've earned a Custom Title Join Date: Oct 2006 Location: Carlisle, Pennsylvania United States Posts: 1,635	There are VTEC sohc engines, like that in the del sol si I think you have to replace the head, which involves a lot of other work as well. The best way to get VTEC is to do an engine swap, or just buy a car with VTEC in it. __________________ Comma Club Member #1

11-06-2006, 05:54 PM	#5 (permalink)
frankjt96 Member Join Date: Aug 2006 Location: twin cities, Minnesota United States Posts: 40	yeah i was just confused as to what it was, i don't plan on doing anything further with my honda. the way it is is the way its gonna stay. i just bought a real nice golf 4 door with a vr6 swap. it'll whoop on anything. you name it... ferrari's, porche, lambo's, lol. jk. i wish that would be awesome.but the car has a real nice amount of power. 190 whp. 0-60 in my guess of 7-9 seconds, ive gotten it up to 160, got scared, and slowed down. lol it was in low RPM 5th gear and still had power to keep accelerating. __________________ -Tyler

11-06-2006, 07:30 PM	#6 (permalink)
AP1fun I've earned a Custom Title Join Date: Sep 2006 Location: Huntsville, Alabama United States Posts: 683	VTEC changes the cam profiles on each cam by a computer controlled sensor. You do need to have enough oil pressure to be able to engage VTEC and if the air is to dense VTEC will not engage either. Howstuffworks.com is the best place to look for your understanding. I believe they have a diagrap of how it works. __________________ [/quote]

11-08-2006, 02:16 PM	#7 (permalink)
boxcarracer0260 Senior Member Join Date: Aug 2006 Posts: 302	i am getting ready to do a mini-me swap....let you guys know how it comes out and i will have lots of pics too. __________________ Check out me 1993 EG6 "Under Construction"

11-11-2006, 07:06 PM	#8 (permalink)
white94accordex Junior Member Join Date: Nov 2006 Posts: 5	http://videos.streetfire.net/search/...52f982ed3a.htm this is a video of vtec working it is actually very interesting....

11-11-2006, 10:42 PM	#9 (permalink)
TJ213 I've earned a Custom Title Join Date: Oct 2006 Location: Carlisle, Pennsylvania United States Posts: 1,635	So thats how it works, I never thought that that is actually what happens, good video __________________ Comma Club Member #1

12-21-2006, 06:31 PM	#10 (permalink)
F20A4 Junior Member Join Date: Dec 2006 Posts: 9	That link doesnt work for me

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