Vboost question

[Dialtapper]

I'm new to the Vmax (coming up on a year) and this forum. Hope this is the right place to ask this question.

Don't think the Vboost is working. When I first got the bike, very noticeable when you hit 6K rpm it was like a little nitrous kick. Now nothing. Bone stock 2001 engine. Now that I think of it, the only change was Cobra slip-ons, don't remember if I've felt it since then. Could it be the Cobra's or something else?

Thanks for the help.

Chris.

 

[bazwell]

Does the servo motor make the noise when you turn on the ignition?

 

[[email protected]]

Cobras DO rob you of horsepower!

 

[Dialtapper]

Does the servo motor make the noise when you turn on the ignition?

Yes. Still makes the same sound, thought it was a fuel pump. It buzzes once, followed by a second buzz just slight pitch higher.

 

[Dialtapper]

Cobras DO rob you of horsepower!

I've heard that, and heard it didn't. If it has robed power I can't tell. But the boost isn't there at 6K, that I can tell.

 

[bazwell]

Yes. Still makes the same sound, thought it was a fuel pump. It buzzes once, followed by a second buzz just slight pitch higher.

That is usually a good indication that the system is working. Maybe it is just the cobra's.
You can check it by revving the engine and looking at the vboost mechanism with a torch, see if it moves after 6000rpm.

 

[Redbone]

It's pretty normal for you to get used to the vboost during your regular riding. Try riding through the ~6200 rpm range slowly and you should feel it, especially through the lower gears.

 

[sdt354]

It's pretty normal for you to get used to the vboost during your regular riding. Try riding through the ~6200 rpm range slowly and you should feel it, especially through the lower gears.

If T-boost is good for anything, it at least let's me check the v-boost while riding. At steady throttle in 2nd gear I flip it on. The feel is easy to detect. Also my speed increases noticebly when it starts to come on at 3k and I know it's working.
Steve

 

[Dialtapper]

It's pretty normal for you to get used to the vboost during your regular riding. Try riding through the ~6200 rpm range slowly and you should feel it, especially through the lower gears.

You could be right, when I first got the bike and it kicked in I thought, what the hell was that? Cool! Now it's second nature, but when I looked for it yesterday it was in the top 2 gears, I'll look for it in the lower gears today.

 

[Dialtapper]

That is usually a good indication that the system is working. Maybe it is just the cobra's.
You can check it by revving the engine and looking at the vboost mechanism with a torch, see if it moves after 6000rpm.

Ok, thanks. Where do I look?

 

[Dialtapper]

If T-boost is good for anything, it at least let's me check the v-boost while riding. At steady throttle in 2nd gear I flip it on. The feel is easy to detect. Also my speed increases noticebly when it starts to come on at 3k and I know it's working.
Steve

Other that that, what the general consensus on T-boost? Pro or con?

 

[Diablotin]

Weird but i'm having the same feeling since I changed the muffler. Wondering where the chang could come from. The inlet is slightly smaller. Perhapps something different on the carb since I got it back.

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[Diablotin]

In fact i dont feel it much in first and second gear but 3rd no prob. Maybe I'm just dreaming lol

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[MaxMidnight]

See below - you can see the VB mechanism between the lower rubber carb sleeves

Have a look at this thread.