Suzuki Patents VVT Hayabusa

[Busa3Fan]

Suzuki Patents VVT Hayabusa

The march of exhaust-emissions restrictions means many sportbikes including Suzuki’s Hayabusa and GSX-Rs are walking a razor’s edge. VVT can help them survive.

www.cycleworld.com

 

[Bumblebee]

Good to hear......

It can never go wrong for the bike to get better.....

 

[Dnyce]

Means the busa is gonna get Vtech pop lol

 

[sixpack577]

Gen 3.5
With a new head and cams.
Would be interesting to see if that will have gen3 low to midrange with gen2 top end.
That may very well come with a new or updated locked ecu too...that we'll wait to be unlocked...as always, lol
Still good to see that Suzuki is looking ahead, and has plans for the Gsxr's and Busas to live on into Euro6...if at all possible.

 

[Bumblebee]

Gen 3.5
With a new head and cams.
Would be interesting to see if that will have gen3 low to midrange with gen2 top end.
That may very well come with a new or updated locked ecu too...that we'll wait to be unlocked...as always, lol
Still good to see that Suzuki is looking ahead, and has plans for the Gsxr's and Busas to live on into Euro6...if at all possible.

I can't remember where I read it but I read that future ECUs won't be able to be unlocked as they will be encoded or something...I can't find the article I was reading now.....

It was an article regarding cars though so it might not translate into motorcycles with any luck.

 

[sixpack577]

I can't remember where I read it but I read that future ECUs won't be able to be unlocked as they will be encoded or something...I can't find the article I was reading now.....

It was an article regarding cars though so it might not translate into motorcycles with any luck.

No, that's true now, as you see how much effort companies put into unlocking them.
The H2 took Brentune over a year and a half to unlock.

 

[Busa3Fan]

This is the proof we all needed!

Hayabusa will continue to live!

And I bet/hope also the GSXR!

 

[Ked0607]

vtec turbo busa on the way

 

[Bumblebee]

No, that's true now, as you see how much effort companies put into unlocking them.
The H2 took Brentune over a year and a half to unlock.

What I read is manufacturers will make the ECUs impossible to unlock....now that's for cars..

I know the ECU in my '16 Ram is impossible to unlock so Diablo tune made a piggy back system for it.

I'd imagine the same will happen for any ECU that is not able to be locked....

It took a while for the Gen 3 to be unlocked as well..

If there's a will, there's a way...

 

[SS4Luck]

Gen 3.5
With a new head and cams.
Would be interesting to see if that will have gen3 low to midrange with gen2 top end.
That may very well come with a new or updated locked ecu too...that we'll wait to be unlocked...as always, lol
Still good to see that Suzuki is looking ahead, and has plans for the Gsxr's and Busas to live on into Euro6...if at all possible.

Would be a real shame if someone sitting with a stand-alone ECU, turbo on order and no problem spending money they shouldn’t got a hold of the head and pair of intake cams and tried to see what kind of power they really made.

 

[Hayabusa Wannabe]

Would be interesting to see if that will have gen3 low to midrange with gen2 top end.

These engines are initially built as “wide-open” race engines. I suspect VVT would only be counterproductive.

Means the busa is gonna get Vtech pop lol

The 2002 VFR800 added VTEC. The reality is that they used it to close two valves below a certain RPM, 6000 or similar I cannot recall. It produces a huge boost of power when the valves open. That is not extra power but merely a return of the power the VTEC design deliberately sapped in the first place.

Yes the brochure indicated something about torque being improved. That was just made-up by Hondas marketing people.

From a political view, VTEC can and will only reduce fuel usage. I may be wrong and Suzuki could generate an advanced, powerful setup. I doubt such and to me this only means the valve adjustment will be a lot pricier. Who needs it, especially on a bike that can easily be boosted?

 

[Bumblebee]

BMW S1000RR have VVT and seem to do very well as one of the stronger 1ks....

 

[pcs]

just to be clear, vtec is not vvt, one deals valve lift and the other is valve timing. for those who don’t know. from the photos on the article, the system looks very similar to what’s already used in the automotive industry. i feel its just adding complexity but suzuki feels it’s necessary so ill follow along.

 

[fallenarch]

My BMW 1250 has VVT (or Vtech, don't know), aided by a solenoid drive that moves the cam. It works flawlessly (for now, knock on wood), and there is no talk of the R-series (big twins) disappearing. In fact, BMW doubled down with the R-1800 cruisers. But these are relatively low RPM bikes, like a 9K redline for the 1250.

My point is that the VVT may cut in to stop the party between 9-11K RPMs, where the emissions offenses happen apparently. As for locking the ECU, it's all about replacement ECUs. Euro 5 clearly says the ECU can't be programmable, so bikes must have gotten a bye on that part.

 

[sixpack577]

These engines are initially built as “wide-open” race engines. I suspect VVT would only be counterproductive.



The 2002 VFR800 added VTEC. The reality is that they used it to close two valves below a certain RPM, 6000 or similar I cannot recall. It produces a huge boost of power when the valves open. That is not extra power but merely a return of the power the VTEC design deliberately sapped in the first place.

Yes the brochure indicated something about torque being improved. That was just made-up by Hondas marketing people.

From a political view, VTEC can and will only reduce fuel usage. I may be wrong and Suzuki could generate an advanced, powerful setup. I doubt such and to me this only means the valve adjustment will be a lot pricier. Who needs it, especially on a bike that can easily be boosted?

There should be no difference in a valve adjustment.
Suzuki's design looks alot like the mentioned Kawasaki Concours, and I have checked the valves on those before.
The vvt mechanism is on the end of the intake cam, and does not get in the way of the check or adjustment.

I agree that the Gsxr is a race engine, and it is designed for high rpm use, but they also need to be streetable, as well as a good road race bike needs a strong midrange(which they have).
The Gsxr1k's are all very strong above 6k rpm, and the later models rev out into the 14's.
They also aren't weak down low, not near Busa torque, but strong, so vvt could wake up the lower end some.

 

[Dnyce]

Just a vtec joke guys lol

pretty sure race bikes will have this removed, it’s main purpose is to help pass emissions.

It’ll probably go the same way of the pair valve and the cats, with adjustable cam gears and turn off the vvt in the ecu.

 

[Dnyce]

I can't remember where I read it but I read that future ECUs won't be able to be unlocked as they will be encoded or something...I can't find the article I was reading now.....

It was an article regarding cars though so it might not translate into motorcycles with any luck.

Fueltech/maxxecu etc etc

Annoying/pricey but easily overcome

 

[fallenarch]

Pretty sure the Suzuki MotoGP bikes had the VVT. They used the centrifugal force system - all mechanical. They were trying to get V4 grunt from an inline 4, They used the centrifugal system because the MotoGP rules did not allow VVT by electronics, so they went all mechanical and it apparently worked great.

 

[pcs]

 

[Kiwi Rider]

The really funny thing is, the vtec guys ACTUALLY think their cars are fast lmao