http://members.home.net/crush/reality-check/

This guy says basically that VTEC only is good at high revs, and that it is not used unless you trash your car.

Of course, he makes no mention of the fact that the VTEC system at high revs allows for a fatter torque 'curve' at lower revs.

Consider an engine w/ only one camshaft profile: it peaks low, mid or high only, depending on the tuning of the car. VTEC allows this band to effectively occur twice (not really, but I'm too lazy to explain here), allowing for good high rev power along with low rev power as well.

I say lets flood his mailbox with hate mail!

------------------
'01 White Diamond Pearl 3.2TL
-Wing, tint, cop-finder
'88 White RX-7 Convertible
-Permanent tinitus courtesy of Rockford-Fosgate

 

Oh my god that guy is such an idiot. look at the first news piece on his board. "eibach steals 'reality check' concept." Eibach was not even talking about vtec, they just used the phrase "reality check" which has been around for ages. Then he says that eibach has stolen his "reality check" concept. What a sped.

 

If VTEC Sucks, why do so many manufacuters adopt the "variable valve timing" in their later engines, after Honda has been doing it for years?

------------------
'00 White Diamond Perl w/Nav
Wings West Spoiler
Rear Comptech Sway bar

 

Of course, he's only using the whole lame argument to show how cool his non-variable valve timing Ford Probe (oops, Mazda MX-6) is.

What a yutz.

------------------
'01 White Diamond Pearl 3.2TL
-Wing, tint, cop-finder
'88 White RX-7 Convertible
-Permanent tinitus courtesy of Rockford-Fosgate

 

what a dumbass! of course the SI makes all its horse power over 5,500 rpm! all cars do! because horse power is equal to torque x RPM divided by 5252 any engine that has a redline above 5252 will have more HP than torque and any engine with a redline lower than 5252 RPM will make more torque than HP. its a mathmatical fact! and just because a SI only makes 111 ft LBS of torque dont mean anything! that is what the transmission is there for. the transmission makes torque out of HP the lower the gearing the more torque you get to the wheels and the fact that you can run the SI motor up to 8K RPM allows you to have sufficent torque to move the car in city traffic.
the bottom line is that the honda VTEC engine is just designed to operate at a higher RPM under normal driving conditions.
I would send this to the dude in an email but i dont he would understand it anyway.

here is an example of my old prelude SH it was rated at 156 foot lbs of tourque at 5,250 that is where it peaks but at 7k rpm it is about 150 foot lbs of torque. so take 150x7000/5252= 200HP that is exactly what the prelude is rated at 200 hp at 7k rpm!

hope this helps someone!

------------------
formerly 98 prelude type SH

Currently 2001 Acura 3.2 TL With Navigation Black/Ebony

 

Probe-POS! If it was that good i wonder why they don't build them anymore!

 

because Probes are POS!!! They were replaced by the crappy Mercury Cougar. Never drove one of either one, but then again I wouldn't be caught dead in one.

God I love my TL, what an ignorant bastard. I've driven other American cars before, and let me tell you they are all POS's.

------------------

2001 Acura 3.2TL w/ Navi Black ext. Ebony int., Sunroof Visor,
35% Smoke Metallic Tint, Burlwood Shiftknob and more to come!

Stereo System Coming!

 

comon guys....he drives a ford prob....enough said

------------------
Bad ass TL...but...
Cant afford Mods.....

 

I've seen that guy's site before. Typical of people who don't fully understand VTEC (or much else). Horsepower is not directly measurable - it's the rate at which torque is applied to the crankshaft. Since we all know these motors (B16A's, B18C's) rev high as hell, you can understand why they have so much more hp than torque. The implementation of VTEC in the DOHC VTEC motors found in the Civic Si, Prelude SH, S2000, Integra GS-R and NSX is to wring as much hp per liter as possible. Sure you have to rev them high to get to the power -- but that's the fun. You buy a sports car to have fun with. That's why there's no 8500 rpm motor in the TL -- it's a relatively large family sedan that no one (read: most people) wouldn't want to rev to hell to get power. I think that guy suffers from ignorance sparked by jealousy.

Also, preludeshfan: Your formula is right, but your theory is not. Not every car that redlines above 5252 RPM will have more horsepower than torque. The Lexus 4.3L V8 revs to ~6300 and produces about 30 more foot-pounds of torque than it does horsepower. In the LS430 I believe the figures are 290/325. It's got a lot to do with not so much total displacement as it does engine geometry. In general, a longer stroke will afford you more torque but limit the speeds to which the engine can rev. Rather than go any further let me post a few quotes:

"Any internal-combustion reciprocating engine, regardless of configuration will defy every physical, and chemical law that has ever been written and applied to it". -- Keith Duckworth

and

"...The workings of an internal combustion engine verge on pure chaos. There are so many variables, so many interconnected phenomena, and so many immeasurable forces at work that not even a Cray supercomputer could sort them all out..." "...The determination of whether something works is printed on the timing slip in black and white. If the facts disagree with the theory, believe the facts and invent a new theory". -- Warren Johnson, World Prostock engine builder.

Sorry for the long post.

------------------
2000 WDP 3.2TL non-NAV