This Is How Vtec Works!!

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02-07-2008, 11:46 PM

tonyd3773

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This Is How Vtec Works!!

This is for those who are having trouble understanding the VTEC idea. Hope this helps!!!

YouTube - How VTEC works

02-08-2008, 03:11 AM

claymore

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It sure DOESN'T HELP your confusing more people that is NOT Vtec on a Fit/Jazz. It's from some other Honda.

02-08-2008, 01:09 PM

tonyd3773

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Quote:

It's from some other Honda.

Which is why it is posted in the OTHER HONDA RELATED discussion. Sorry if you did not think it was benefical.

02-08-2008, 01:35 PM

cojaro

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Quote:

Originally Posted by claymore

It sure DOESN'T HELP your confusing more people that is NOT Vtec on a Fit/Jazz. It's from some other Honda.

If it's SOHC VTEC, then I would deem it relevant to the the Fit's 1.5L VTEC.

02-08-2008, 02:52 PM

Sugarphreak

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I believe the VTEC for the Fit is different than the traditional VTEC used in other Honda engines.... here is a blurb I picked up...

Quote:

The VTEC mechanism on the L15A VTEC is that of a 1-valve/2-valve system for the intake side only. The exhaust side always functions as a 2-valve system. So the L15A VTEC is a 12valve/16valve system. Here again, misunderstandings and prejudice abounds. Firstly because the original B16A engine that pioneered VTEC was a 3 rocker/cam-lobe design, while the first 12valve/16valve VTEC implementation was on the VTEC-E D15B engine, many have since labelled the 12v/16v VTEC mechanism as the 'economy VTEC' version while reserving the 3-rocker arm mechanism as the 'true power' version.

You guys can read the full thing here, this is continued near the bottom
The Truly Amazing Honda Fit/Jazz

Last edited by Sugarphreak; 02-08-2008 at 03:02 PM.

02-08-2008, 03:15 PM

tonyd3773

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Quote:

If it's SOHC VTEC, then I would deem it relevant to the the Fit's 1.5L VTEC.

I understand it might be a different Vtec but isn't Vtec in general the same concept? Thx

02-09-2008, 12:11 AM

cojaro

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Quote:

Originally Posted by tonyd3773

I understand it might be a different Vtec but isn't Vtec in general the same concept? Thx

Ja.

For the 1.5L VTEC, the exhaust always has two valves per cylinder. The intake side has only one valve per cylinder until around 3.5k rpm (VTEC engagement) when the secondary intake valves open.

02-09-2008, 12:03 PM

tonyd3773

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Quote:

For the 1.5L VTEC, the exhaust always has two valves per cylinder. The intake side has only one valve per cylinder until around 3.5k rpm (VTEC engagement) when the secondary intake valves open.

O.K, see we are learning! So we can turn this thread into the difference between L15a Vtec and other Vtec. Something postive will come out of this!!! Thx for the info, gotcha!