V Tech Transition

I am not trying to say the Busa and the 6th Gen vfr are the same and I am not a vfr basher. They do fill a bit of the same sport touring niche though. They both cost about the same, similar comfort with the right mods, handle well, reliable, and all that. My dad really loves the vfr. He is happy as can be. And I was not looking for a vastly different bike going to the busa. I did want more power and going from the vfr which I never had dyno tested but have a good idea of where it was at to the busa which puts out 175 hp and over 100 ft pounds of torque to the rear wheel the difference there is really clear. Back to the vtech I would rather have a 6th gen non vtec I think. I still would have moved on though.

 

well, i have an "02" 1st of the VTEC and it kicks in at 7200rpm and i love it, hang on no, I LOVE IT!!!!!
the reviews i have read say that the 02' model is the harsh one with 03' onwards kicking in lower @ 6600rpm and doing so a lot smoother.

i definately do not complain about the kick in the ass that my viffer gives me. it does not throw me off mid-corner, I LOVE IT. i will say that (my wife - who i am seperated from) has an 02' vfr as well and her seat is/was standard, mine had been sculpted. when accelerating on her seat you would slide back quite badly if not ready/holding on with ur knees. my seat is purrfect and keeps ur ass in one cumfy sculpted position and makes it much easier to just get on the gas and go, Go, GO!

her bike is the same and vtec kicks in at 7200rpm, but again we both think that its just SO UBBER COOL to have 2 bikes in one oh so sleek, sexy package of a motorcycle!!!!!
people that say its un-nerving and dangerous obviously just dont really know how to ride and/or need to spend more time on the bike to get the feel of the vtec and love it the way we all do.

so i say sit back (at the lights), then crouch down, release clutch, twist throttle and enjoy the sweetest ride, with the sweetest note that only gets better as vtec kicks in.

 

The only thing that bothered me about the V-tec initially was the flat spot just before it kicked in but I have have noticed after riding it for a month that the flat spot is not nearly as noticeable once the bike is really warmed up. I have no problems with the V-tec.

 

You know, all this really doesn't matter. The other day I FINALLY got to ride my new "replacement" 2007 RWB for the first time since a brought it home from the dealer on July 20th (ironically to go buy the tag). As I'm sitting at a stop sign, the guy in a suv next to be yells "most excellent". i looked over at him and he said "it's 1985 all over again".

At that point with the smile on my face, it didn't matter whether it was a V-TEC, it kicked in hard or soft in the corners or what the fuel mileage was ..... it was just plain cool.

 

Today I finally had the opportunity to put about 70 miles on this new RWB. one thing i noticed about this one compared to the last one (totaled it after a month and 1,100). this one doesn't seem as "on and off" with the throttle. I actually kinda noticed that on my way home from the dealer, but it was 110 miles (100 of which was straight highway or turnpike), and I thought I was just used to the other bike.

After spending today with this one, it's definitely smoother off the throttle than the last bike. I have no idea why, but it is. although I only have 280 miles on the bike (after the ride today) I did squeeze it a bit, and the v-tec transition was much smoother. to the point it was unnoticeable aside from the sound. my last bike had a noticeable "powerband" feel to it.

I wonder if this bike could be running richer or something. My last was ser# 1111, this one if 0748. Other than that, they are identical, down to the same soft bags, tank bra & nep cruise unit.

 

I just stay in or out of it for the most part.

 

My VFR is still pretty new , brand new 09 I got about 6 weeks ago , 2000km on it so far . I must say at first I wasnt so sure about this whole Vtech thing from all I had read / heard about it , now I must say theres nothing smoother than a VFR . Maybe mine is just smoother than most but everything about this bike is smooth from low rpm low speed to the opening of the Vtech itll give you exactly what you squeeze out of the throttle , nothing more nothing less , just that awsome purr past 6500 rpm .

 

remove the emissions can and also the pair valves and the touchy throttle will go away.

 

As far as 4 valves all the time, I would keep the vtec due to the addes low end tourqe.

 

When Im leaning into the throttle, I LOVE the transition. If i'm just cruising and not paying a ton of attention, i find that I generally hang around right around 7k on the flat stop. That can be annoying!

Overall though - I like it like it is

 

I found the switch very abrupt at first, but once you get used to it it's really great. As for having all four engaged at all times, you'd have great top end power but you'd lose a lot of the low end torque that the engine throws out. With a bike as heavy as this one. All the extra on the bottom end is great. But then I guess... well ya, a 70 pound drop would be great too!

 

here is the deal, you have more low end then a 5th gen due to the vtec.
When it kicks in your you are in the mid range and the valves open to give more air ( and fuel ) so the engine will continue to breathe, this is why the tourqe drops off at higher rpm.

"If you've been around motorized vehicles for any length of time, you have probably been exposed to the great torque vs. power debate at some point. If not, it goes like this:

"Torque is what makes a bike accelerate, not power."

"Wrong."

Torque and power are inescapably linked by the fact that horsepower equals torque (in ft-pounds) times RPM divided by 5250, so people who talk as if they are independent are full of it. If you have a given torque curve for an engine, you have the horsepower curve also. Knowing how these two numbers work with each other lets you can poke through some of the BS you might read.

First, as usual, a few definitions.

Torque is a twisting force applied to an object, like a wheel or a crankshaft. Note that motion is not required for torque to exist! If you stand on a lug wrench that is on a frozen lug bolt, you are applying a torque to that bolt even though there may be no movement. For our purposes, we will consider that torque is measured in pounds-force feet (lbf-ft) meaning the equivalent of a given force, in pounds, acting on the end of a lever of length in feet. For example, standing with 180 pounds body weight on a lug wrench one foot long yields 180 lbf-ft of torque. A child of 90 pounds standing on a two-foot lug wrench applies the same torque.

Work is the application of force over a distance. Unfortunately, the units used are the same (pounds times feet) but we write this as ft-lb just to distinguish it. The real difference is that in this case, the "feet" part means feet of movement. If you push on a car with 100 pounds of force and maintain that for 30 feet, you have done 3000 ft-lb of work. An easier example is lifting a weight (in pounds) a given distance (in feet). If you use some sort of mechanical advantage, like a winch, you will do the same amount of work because by halving the effort required, you will have to double the distance through which you apply the force to achive the same objective.

Power is the application of work within a finite time. 550 ft-lb of work in one second is one horsepower.

So, let's first go through the numbers to get from torque to horsepower. Pushing with 87.5 pounds (force) on the end of our 1-foot lug wrench applies a torque of 87.5 lbf-ft. No motion yet, so no work and no power. But now let's say the lug bolt loosens slightly and starts to turn, but that same 87.5 pounds of force is needed to keep the wrench turning. For every revolution of the wrench, you are applying 87.5 pounds of force over a distance of (2 * pi * 1 foot) or 6.28 feet, the circumference of the circle that your hand is making, for a total of 550 ft-lb of work. It's only when this system is actually moving that work is being performed. From here, it's a quick step to say that if you work fast enough to turn that wrench once per second, then you are doing 550 ft-lb of work per second, which means you are applying one horsepower."

 

Thank you, 02 VFY Rider!
That is one of the best descriptions I have ever read about Torque.

 

See, now you had to mention weight loss, didn't you?! Everyone knows not to say that around me because I love to say how fun my Daytona is because it has the same power as the VFR but with much less weight! Now everyone else is going to dislike you for allowing me to beat that tired (dead) horse again! LOL!
Cool Thread...great replies. Keep 'em coming! I love how we can see things differently here but still be respectful and have FUN!