I know everyone talks about how great Vtec is, and that many ppl say the have won races because of it, but is Vtec usless when it comes to the performance world? I see it as extra wight and something that you can get the same results with by just adding a cam. What are you thoughs? ? ?

 

read more on what vtec is and then revise what you just said.


sorry, i dont mean to sound liek an *** (icon) but people misunderstand what vtec is. use the zero search ( https://honda-tech.com/zerosearch ) and just type in vtec and you will get a shitload of results. and as for waste of weight....no.

 

http://auto.howstuffworks.com/question229.htm
This should help you understand

 

i know how it works. I have many friends with hondas. But the thing is when your raceing, vtec is always useing the Most aggressive cam lob. So whats the point of it (in the racing world)?

 

You need to read the topics the people above posted for you, because you clearly don't understand VTEC, much less how an engine performs. There are disadvantages of using a small camshaft, and disadvantages of using a large one. VTEC allows the use of both, to give you a very smooth idle with excellent top end power.

 

I hate when I see people compare cars of the same hp but favor one because it has VTEC.

For example: 99-00 Civic Si and 4th gen prelude Si. ThE CiViC WiLL 0wN WiT 3rd g34r VTEK y0!!

Just my .02

 

Actually in a road race, or a drag drace, where the powerband of the engine is pretty narrow as it is, VTEC technology IS pretty useless, what do you think VTEC killer cams mean? when the low-end power is of little concern and lopey idle is ok, lighter valvetrains is of an advantage, VTEC is removed, a huge cam(s) is installed and idle is set at 1500 RPMs.
stan

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90crxsi &raquo;</TD></TR><TR><TD CLASS="quote">Actually in a road race, or a drag drace, where the powerband of the engine is pretty narrow as it is, VTEC technology IS pretty useless, what do you think VTEC killer cams mean? when the low-end power is of little concern and lopey idle is ok, lighter valvetrains is of an advantage, VTEC is removed, a huge cam(s) is installed and idle is set at 1500 RPMs.
stan</TD></TR></TABLE>
In road racing, you're not in VTEC range all the time.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SuperStreetRX7 &raquo;</TD></TR><TR><TD CLASS="quote">
In road racing, you're not in VTEC range all the time.</TD></TR></TABLE>

Perhaps not, but my point is, race motors have a completely different working environment than a street motor. and having a high speed cam engaged all the time is, as a rule, more common than the low speed cam.
stan

 

I agree with the others now.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90crxsi &raquo;</TD></TR><TR><TD CLASS="quote">

Perhaps not, but my point is, race motors have a completely different working environment than a street motor. and having a high speed cam engaged all the time is, as a rule, more common than the low speed cam.
stan</TD></TR></TABLE>

but who uses a honda in road racing? people who take it serious don't use honda's cuz they have money for a better base car to start with. honda's aren't really road racing cars...well atleast they dont seem like they should be to me...

 

Question. Were these cars designed by Honda to be race cars (other than type R's) in the first place ? vtec allows more power in the lower and higher points of the powerband by having two diffrent cam profiles.

 

dont see TOO many (there are some) non-vtec drag cars do you now...

 

alot of ppl who do solely race their hondas, especially w/ FI, don't use vtec. problem is, most ppl you run into on these boards and everywhere else will probably see quite a few track days, but, they still drive their cars everyday. That being the case, bad idea to lose the vtec.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by icelarry27 &raquo;</TD></TR><TR><TD CLASS="quote">

but who uses a honda in road racing? people who take it serious don't use honda's cuz they have money for a better base car to start with. honda's aren't really road racing cars...well atleast they dont seem like they should be to me...</TD></TR></TABLE>

More than you might think or might be aware of. Honda's make excellent race cars mostly due to the fact that they are well engineered from the factory and do not require a lot of development. You can throw a few parts at them, but for the most part the OEM stuff holds up extremely well to the rigors of racing. Outside of the Type R there was/is the 600, Civic 1200, CRX, SiR, NSX, and S2000. All of those were/are good race cars.

To answer the question at hand... If performance is your only goal, and the rules allow for it, I would opt not to have VTEC. It is one less system worry about, one less variable to account for, one less thing to tune around.

Ausmith - who still has Vtec on his race car and street car

 

This is kind of like saying, "Since a screwdriver makes a very bad hammer, it is defective."

I mean, where does your pointing out of shortcomings end? Does the lack of a turbocharger also mean it won't do well "in the performance world." Since it doesn't come with racing slicks, does that mean it can't compete either?

Sure we can all come up with *some* situation where any car won't do well. So what? What's the point. Try putting a 4 x 8' sheet of plywood into your Ferrari 355. Guess it isn't very good then huh?

Ask yourself what the car was designed for and how well it meets those requirements. For you to arbitrarily ask "is this type of motor useless for X" is meaningless.

How about answering this: Just what car *is* good for the performance world. I bet we can come up with a situation where this car doesn't do well either.

 

I take my Type R to the track and I am always in VTEC when I'm on the track. If I built a purpose built race car I would not run VTEC. No need for it. Just my 4 cents (inflation and cost of gas)

 

well if your ultimate goal was performance then you wouldnt need VTEC or cams for that matter! Youd have hydraulic valves and youd be able to control the amount of lift and duration at any rpm and have your top end able to rev to 15+rpm!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by liquid51 &raquo;</TD></TR><TR><TD CLASS="quote">alot of ppl who do solely race their hondas, especially w/ FI, don't use vtec. problem is, most ppl you run into on these boards and everywhere else will probably see quite a few track days, but, they still drive their cars everyday. That being the case, bad idea to lose the vtec.</TD></TR></TABLE>
but 99% of these non-vtec FI cars dont make the power one with it would