Why dont all cars have vtec? (or equilvilent)

[loltim]

I've never owned a car that doesn't have VTEC

lmao what car is that?

an older Civic or CRX EF by the looks of it, and he's just holding it on the revs then nailing it before VTEC, VTEC doesn't kick that hard.

VTEC comes in at 6000rpm on mine, 5800 on most other Civics and as Si said, 6200 on the S2000.

edit: oh older Integra?

 

[Jonny69]

Put into perspective I have a single cam in my Anglia engine set to develop max power at 8000rpm. It's at the expense of the bottom end power. It idles rough and noisily, can be hard to start and it's undoubtedly got a lot less power than a standard engine at low revs. VTEC lets you keep that smooth easy running at low end but also have the mad power at the top.

 

[ssharp59]

dont misti have mivec or somthing..

Personally give me a carbed turbo (renault 5) anyday.

 

[Admetos]

This is why the VTEC systems have two cam profiles - to maintain low end performance when driving normally.

VTEC operates at 6200rpm on the S2000, one thing to remember is the higher revs allows shorter gears, they are not crap lowe down and will happily pull from 30mph in 5th.

And the low gearing improves torque at the tyres, this is why a high revving engine with low gearing requires less engine torque. F1 cars have like 800bhp but I think 200 ft torque, yet still able to light their tyres up, it's down to the gearing.

Who was it that said, give me a leaver long enough and I will move the Earth, gearing (levarage) you see.

 

[BigglesPiP]

one thing to remember is the higher revs allows shorter gears, they are not crap lowe down and will happily pull from 30mph in 5th.

How does this make them on the motorway?

One of my main complaints about my Alfa is that 5th is low enough that if I try to cruise at 90 I'm doing over 4500RPM, and it's deafening.

 

[Admetos]

How does this make them on the motorway?

One of my main complaints about my Alfa is that 5th is low enough that if I try to cruise at 90 I'm doing over 4500RPM, and it's deafening.

Simons S2000 has 6 gears, but my Integra has 5.

It's not great in terms of sound levels, lack of sound proofing also. 70mph is about 4.3k rpm. At 90mph in 5th Vtec kicks in.

When I first moved to Integra I kept reaching for an extra gear (on motorway), you get use to it and it's not an issue if you like that type of car.

Other things you notice is the cars engine brake much more than normal cars - when I picked mine up my Uncle followed me in a Vectra and everytime I lifted my foot he had to apply brakes. Again even on long journeys you get use to keeping your foot still for long periods.

You may think the car is tiring, but I would have no problem driving many hundreds of miles in it.

Also, a higher revving engine will wear more. If i'm doing 4.5krpm, then a Vectra V6 is doing 2k rpm. Honda engineering is good, but you need to keep ontop of oil changes more. Same goes for high performance sports bikes, by there nature they will wear at quicker rate. Saying this I know someone with an Integra thats over 180k miles!

 

[Simon]

How does this make them on the motorway?

One of my main complaints about my Alfa is that 5th is low enough that if I try to cruise at 90 I'm doing over 4500RPM, and it's deafening.

About the same, but 4500rpm is only 50% of my max revs

 

[BigglesPiP]

You may think the car is tiring, but I would have no problem driving many hundreds of miles in it.

I'm no wuss about this sort of thing, I can happily do 300 miles non stop at high speed in the Alfa, so the noise wouldn't put me off an S2000, which I'd seriously consider in the future (when I have a little more cash). I like the seats in them too, Lord_Mike's is pretty comfy.

 

[Admetos]

I'm no wuss about this sort of thing, I can happily do 300 miles non stop at high speed in the Alfa, so the noise wouldn't put me off an S2000, which I'd seriously consider in the future (when I have a little more cash). I like the seats in them too, Lord_Mike's is pretty comfy.

Compared to modern cars, I find i'm more aware in the Integra. I think this stops you from being tired. It's also not a tiring car - everything is in the correct place, switches, the steering wheel, not constantly adjusting a seat. Even the A pillor is designed for max visibility.

So even with like the noise, the feedback from seat (suspension), because the working environment is designed for the driver it's not really a tiring car to drive. Bit like your desk / PC at work, if it's all layed out good (with good monitors), you should be more productive - hope that makes sence..

 

[james.miller]

This is why the VTEC systems have two cam profiles - to maintain low end performance when driving normally.

VTEC operates at 6200rpm on the S2000, one thing to remember is the higher revs allows shorter gears, they are not crap lowe down and will happily pull from 30mph in 5th.

yeah, which is something my 1.8 xsara cant do

 

[Clarkey]

dont misti have mivec or somthing..

Personally give me a carbed turbo (renault 5) anyday.

Yes, the original MIVEC is almost identical to the original VTEC, many owners claim they drive better than VTEC too. They only ever made 1600cc ones though (by that I mean 4 pot ones, the v6 2l isn't really directly comparable) and they are nothing like as reliable as the VTEC.

The modern day MIVEC is just variable cam phasing.

 

[Jonnycoupe]

How does this make them on the motorway?

One of my main complaints about my Alfa is that 5th is low enough that if I try to cruise at 90 I'm doing over 4500RPM, and it's deafening.

My VTEC is doing 3k at 90mph.

Honda do NA engines so well, or atleast used to, that the only really need to stick VTEC on the performance variants. Which gives more fuel for the comments appearing in this thread.

My 1.8 VTEC SiR-G Integra absolutley sleighed my Focus 1.8 anywhere in the revs and gave better MPG as it wasn't the bonkers type R valvetrain and even had a dual stage intake manifold.

 

[L0rdMike]

Think mine does around 5k or so in 6th at 80/90?