Ano advatage ng vtec zone?

[Ryant]

New with my honda SIR 99, i just want to know in layman terms anu ung vtec zone na bumabatak at around 5krpm? Di ko pa natry umabot ng 5krpm. lahat ba ng gear meron nito?

[istan]

It doesn't have anything to do w/ the gear and has everything to do w/ RPM. Even pag neutral ka, tapus nagrev ka ng above 5k, engine activates "VTEC".

[Ryant]

What does it do?

[Snapshot021]

^
it shifts to a more aggressive cam profile.

[Ryant]

So kayang kaya ko ang corolla 1.6gli same year model sa highway? Lagi ako nauunahan eh. hehehe

[SiRvtec]

So kayang kaya ko ang corolla 1.6gli same year model sa highway? Lagi ako nauunahan eh. hehehe

damn paps! yakang yaka mo yun. you won't break a sweat defeating a corolla,even a stock of your engine and a stock silver top engine or also known a 4age engine of toyota. you can smoke that in a drag race. don't you look at your engine?? how big it is?? hehe

[nuts]

I suggest you install a vtec light din para malaman mo kung naka-engage na yung vtec. Remember lang na pag nasa-vtec zone ka, mas mataas yung gas consumption mo.

[RustyXIII]

Napansin ko lang na walang nag-correct sa first reply sa thread na to. Hindi papasok sa 2nd cam profile ang B16 (o kahit anong VTEC na makina) kapag nasa neutral.

VTEC needs several factors for it to engage: the engine has to be in normal operating temperature (warmed up and not from a cold start), there has to be sufficient oil pressure since VTEC engagement is hydraulic, and the engine has to be loaded (in gear).

[Type 100]

What does it do?

VTEC is how Honda can extract 160 HP from a humble 1.6L naturally aspirated engine in an equally humble sedan. In a nutshell VTEC basically gives the engine two characteristics - a quiet refined Dr. Jekyll in everyday driving, but a fast and noisy Mr. Hyde at high RPM.

Previously these two could not be married due to the limitations of valve and camshaft design - it's either you had a smooth idling engine with good emissions but no power, or a powerful engine with a noisy idle and bad emissions.

In daily driving, the added power helps with acceleration in overtaking situations.

The advantage of VTEC is more evident when you drive aggressively at a racetrack. Because one frequently drives at high RPM on the track, the added power helps you drive faster...as long as you know how to keep the engine in the VTEC operating zone (which is 5500 RPM or higher)

Indirectly, VTEC also helped cement Honda's reputation for bulletproof engines. To accommodate the extra power and load, the engine parts have been built with good design and advanced materials previously unheard of for such small engines - they're basically over-engineered for the job. No matter how often you hit VTEC and rev the engine to high heaven, you will not have to worry about it breaking.

If you're into engine modification you'll learn that stock Honda engine parts can handle 600+ wheel HP without a sweat.

[Ryant]

Nakakatuwa naman, I never thought that i have that powerful car. I'd like to give it a try. I never dont dare to rev so much bec i fear i might break it.

[isa1023]

Yes please, and don't let Corollas, the Civic's archrival, smoke an SiR... But just beware that they too, even Sentra, can have this swapped JDM 1600 cc engines that are equally or more powerful than yours.

The SiR's engine is a rev-happy one. Lucky you.

[moQ_]

Nakakatuwa naman, I never thought that i have that powerful car. I'd like to give it a try. I never dont dare to rev so much bec i fear i might break it.

doble ingat lang with your powerful engine..

[Type 100]

Nakakatuwa naman, I never thought that i have that powerful car. I'd like to give it a try. I never dont dare to rev so much bec i fear i might break it.

Honda has been making VTEC for 20 years now - they started with the Japan-only DA-chassis Integra XSi in 1989. So yes they know what they're doing. Incidentally, that very first VTEC engine is almost the same unit you have in your EK Civic SiR: the (in)famous B16A.

Regarding taking corners properly - Scharnhorst said it all really. I suggest you enroll in a trackday in Subic, Clark or BRC (take your pick) and learn it in the proper venue. No oncoming traffic, no pedestrians, no problem. It's fun too.

The important thing as my instructor JP Castellano says is "you have to show the car who's boss." You should never be a slave to the machine - the machine should follow you. In order to properly do that, you have to understand how it works and behaves especially in extremis. Eventually your confidence and car control skills will increase.

[ghosthunter]

New with my honda SIR 99, i just want to know in layman terms anu ung vtec zone na bumabatak at around 5krpm? Di ko pa natry umabot ng 5krpm. lahat ba ng gear meron nito?

The SiR's VTEC engine lets you be able to do this:

[Ryant]

*jedi13
Feeling ko nga may break pag apak ko sa accelerator. Pag mataas na apak ang bagal ng acceleration. Pag napadiin ako para naman hinahatak ako sa upuan sa lakas. Hirap manantya sa lalo na sa 1st/2nd gear. Mukhang kelangan ko pa sanayin driving skills ko.

[jeDi13]

*ryant

yan nga, ganun pala SiR mo. siguro nga ganyan pag stock. can't still conclude though since 2 stock SiRs palang naman ang nagpapakita ng same behavior. but still, some kind of relief na rin. para kasi talagang ang tigas niya. parang may resistance talaga sa first inch ng diin sa accelerator. pag diniinan mo naman na mas malakas sa resistance, biglang uungol. so release dapat ng clutch para umabante. kaso pag dikitan, hindi advisable baka mabangga yung nasa harap. kaya alalay talaga.. medyo mahirap nga 1st and 2nd gears. yun din napansin ko. hirap timplahan.

[renzo_d10]

Try some minor uphill roads. Suggestion would be the road to Antipolo church. I`ve done it several times using my stock 1.3L sedan, no sweat. What more if you're using an SiR ?

I`ve overtaken some vehicles during the uphill drive, just a little press on the accelerator pedal is needed. And, I never reach 4th gear during the uphill trip. 1-2-3-2-1 lang. :bwahaha:

And, yeah there are some corners too during the trip ... some sharp some are not. Great place to test your skills.

[Ryant]

Ako I never had a problem uphill with my SiR. Walang nginig at lakas pa din humatak basta steady sa isang gear pero pag gear 1 to 2 hirap timplahin.