i heard contrasting sides and listened to vids and read up on vtec but to keep it short, i need some confirmation on a single question.. does vtec have nothing to do with giving you more HP ?

 

Variable Valve Timing and Lift Electronic Control = When VTEC engages a more agressive cam profile is used. ECU fuel, timing, and ignition maps are changed to correspond with the cam profile change. It increases horsepower, by allowing more fuel and air to be combusted. In less this is a trick question, i think there's your answer.

 

im going to need more answers and confirmation, cause someone i spoke to told me its not!!!!

 

it does not give you more hp....to say but then again it does.. just as the post says above it just kicks in a more aggressive side of the engine...

 

so are you saying it does or it doesnt, but it just feels like it does ?

 

vtec is not always engaged. on the orginal vtec engine the cams switch over by oil pressure feed. when vtec engages your horsepower increases. just having vtec doesn't give you "more" horsepower, but when it engages you do.

not to sound harsh, but whoever you are talking to...stop. it seems to me they are missing their basic principles of how an engine operates.

horsepower is identified as 33,000lbs. /min. This is called work. Work is defined as enrgy transferred from one object to another. 33,000lbs./min is the amount of work or "energy" produced. with a 1hp engine the work that that engine can produce over one minute of time 33,000lbs. of force. You ask, well where does this energy come from. Combustion is an exothermic reaction. An exothermic reaction produces heat and when confined to a specific space pressure. This heat and pressure is energy which drives the piston down causing the crankshaft to rotate and on down the assymbly line. Well, what does vtec have anything to do with this? Combustion requires (in this engine case) gasoline and oxygen. non-vtec has a set standard of how much fuel and air is combined into the combustion chamber. This is controlled by the ecu and cams. When vtec engages, the cams allow more air into the chamber. In addition more fuel is allowed into the chamber. Therefore, greater energy is produced by the "new" settings (controlled by the engagement of vtec), creating more power which in turn is more horsepower.

Sorry it's a little mumbo-jumbo, but it's late and I am running off of little sleep. It's really simple math and physics.

Math and physics say "when vtec engages you create more horsepower."

 

thats what im saying ... HP = units of watts = J/S.. this person has been saying "vtec doesn't generate HP noob. if you deavtivated vtec and just ran the aggressive profile. guess waht. the motor would make the same amount of hp"...
vtec broadens your power band. if you disabled vtec on the motor. it would make the same amount of horsepower but with a peaky powerband, but if you just ran the less aggressive cam it would be driveable with no topend, that's what they mean by the motors shortcomings. " thats what he said

well if thats what he states, vtec is going to help regardless in making that hp because its work/ time... because without vtec cross over we would not reach our powerband sooner... so regardless HP = work/time hes wrong right ?

 

vtec is not an item. you can't say "pass me the vtec over here." for lack of better words, it's a system of complementary parts acting together to create more power. if you want to get super stupid and nit picky the word vtec doesn't create more power, but it's the "chain of events that do."

Your guy says that you just put in a more agressive cam, and you got the same hp as with vtec, well that true. vtec is a more agressive cam profile. so obviously, if it's more agressive, then you create more power with vtec engaged. so what if you just put a more agressive cam to run all the time? It's like what you said, vtec creates a cleaner smoother power curve. it is meant for daily drivers to cruise without chugging gas, but if you want that extra kick, shoot the rpms up and let a more agressive cam profile engage.

well, that's all i got to say, i'm going to bed.

 

it makes more in contrast to non-vtec. but it does not make more than itself (aggressive profile) The best way I can describe when a car is in VTEC vs. when it's not is this, VTEC allows for more hp than when not in VTEC... ? lol

what your friend is describing is probably something like a motor w/ VTECkillercams, in highprofile 100% of the time.. when compared to a VTEC motor it will run similarly as the car w/ stock cams in VTEC I believe. Which is the only scenario I can think of where there's only 1profile on the cams in the VTEC engine.. and the reason that these 1profile cam exist is mainly to stay within regulation for a certain race class. (im not in the track/drag scene yet, so i can't give any first-hand experience)

If your friend is truly 100% saying that VTEC doesn't make horsepower and calls you a noob for that, he simply doesn't understand. Does he drive an Integra LS by chance?

 

no he doesnt even drive a honda and hes in a honda forum trying to "teach" what vtec is... i already know what vtec is... itsjust that he blatantly soo admits it.. its actually scared me and shocked myself into thinking that i was wrong. i second guessed myself. as long as i can remember, i know vtec is not a thing but an event caused by high profile cams, rockers, combinations of things in the engine that causes a longer intake of oxygen into the engine... vtec has to do with HP increase..

 

same engine: vtec vs. no vtec

 

thank you blake... you are the man!!! im from SHO trying to direct someone that vtec does help... i knew you would pull through again...

 

ohh btw, got some questions... uhm do you think 269.00 is worth installation of adjustable shocks & springs + alignment ? just your thought on it ?

 

yeah blake's the man w/ the plan!

but OP, ur friend will most likely say that he meant the more aggressive cams etc. etc. bs

 

ohh... he said it in BOLD WORDS many times.. i was soo awe struck, and he wouldnt even believe the honda vtec video... the only other reliable sources.. ( that i know ) blake !!! and hondatech


btw what motor is that ? producing 188? s2000 ? its to the wheels right ?

 

don't think it's an s2000... s2000's are usually above 200whp stock.. if that's a honda, ill bet its an H series

 

thats my h22a

 

stock ?!!!!

 

JDM H22a
super short ram intake with BPI flowstack
Gen1 RMF narrow
2.5" carsound cat
2.25" exhaust
s2000 throttle body
PS, AC removed
EuroR IM
p28 / NepTune RTP

dude dont waste your time trying to argue minuscule meanings. Fact is that if you take a vtec motor and disable its use. You will lose significant power. In that sense, vtec's function is to create more power.

 

thanks now back to the above question? what do you think ? do you think 269.00 is worth installation of adjustable shocks & springs + alignment ? just your thought on it ?

 

i dont know, ive never really paid anyone to work on my car.

take someones labor as 50-55 an hour. Likely to be listed as 3-4 hour job. + the price of an alignment. I'd say its a decent deal.

 

thanks blake !!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dagle &raquo;</TD></TR><TR><TD CLASS="quote">don't think it's an s2000... s2000's are usually above 200whp stock.. if that's a honda, ill bet its an H series</TD></TR></TABLE>

usually the 00-01 s2k's dyno pretty low...they average about 190-200 stock where as the 02+ and ap2's dyno a good amount higher 210-220 stock...