which variable valve control system is ur favourite?

**fpv_gtho** · 05-14-2003, 03:22 AM

out of Ferrari's system, Porsches VARIOCAM, BMW's VALVETRONIC, subaru's new system, toyota's VVT-I, Honda's VTEC, Mazda's S-VT and Ford Australia's VCT, which variable valve technology is ur favourite. If ur favourite isnt listed, vote for other and list it in the forum

**Kudosdude** · 05-14-2003, 05:07 AM

I haven't looked at them all but in my opinion it has to be the Ferrari system -> it is very simple (and ingenious).
This is how it works.

**fpv_gtho** · 05-15-2003, 02:14 AM

i heard somewhere that BMW's valves are organised as 1 exhaust valve/3 intake valve. can anyone confirm that? which manufacturer do u think will be the first to come up with a 5 valve, direct injection, twin spark engine with each valve individually controlled by computer?

**KnifeEdge_2K1** · 11-06-2004, 12:59 PM

Originally Posted by fpv_gtho

i heard somewhere that BMW's valves are organised as 1 exhaust valve/3 intake valve. can anyone confirm that? which manufacturer do u think will be the first to come up with a 5 valve, direct injection, twin spark engine with each valve individually controlled by computer?

... the head would weigh more then the block crank and pistons combined ..

**gtrjazz** · 11-06-2004, 05:56 PM

VVT,VCT lets not get mixed up .My preference would be the electrically controlled Hydraulic system by Lotus.

**fpv_gtho** · 11-06-2004, 10:30 PM

Originally Posted by KnifeEdge_2K1

... the head would weigh more then the block crank and pistons combined ..

and thats supposed to deter people from doing it?

**jcp123** · 11-07-2004, 12:37 AM

Originally Posted by fpv_gtho

and thats supposed to deter people from doing it?

well sorta, i mean you don't wanna raise the center of gravity in a car. DOHC already does this pretty badly, i think carmakers probably shy away from this because it adds even more to the head. but who knows...

**NSXType-R** · 02-02-2006, 02:07 PM

No VVT system is better than Honda's VTEC system in my opinion.

**kingofthering** · 02-07-2006, 07:30 PM

Originally Posted by jcp123

well sorta, i mean you don't wanna raise the center of gravity in a car. DOHC already does this pretty badly, i think carmakers probably shy away from this because it adds even more to the head. but who knows...

then why don't you see integras roll over as much as suv's? they have Dohc and Vvt.

**ewingss** · 05-15-2003, 04:41 PM

all systems have advanteges and disadbantages but the best is the honda.

see all the information in

www.CanadianDriver.com

**ewingss** · 05-15-2003, 04:50 PM

all engineers agree hondas vtec is the best by now.

read the articles of jim kerr . canadiandriver.com

**Kudosdude** · 05-16-2003, 01:20 AM

I don't

Ewingss

Anyway you may want to have a look here at wards for the top 10 engines in depth

**fpv_gtho** · 06-10-2003, 04:15 AM

if hondas vtec is as good as u all make it out to be then why hasnt anyone woted for it yet then

**piledriver** · 06-10-2003, 07:16 AM

Honda has the best relation power/litre for NA engines in the world with the 2.0 VTEC of the S2000...

***henk4*** · 06-11-2003, 01:04 PM

Originally posted by Kudosdude
I don't Ewingss

Anyway you may want to have a look here at wards for the top 10 engines in depth

Slightly off topic, but American visitors might check the Ford Diesel mentioned in the top ten. Somebody appears to be waking up over there.

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