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LT-R450


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well today was the first time that ive seen the new suzuki 450 in Dirtwheels, and it looks alright. fuel injected, full 450cc's, center exhaust. didnt get a chance to read the whole article before i left the house, anyone else seen it? anything really that special about it?

Edited by loganskinner
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I wonder why no one else has gone with a 5 valve head like the YFZ, I would think that is the biggest peformance maker in that motor. If the suzi has a true 450 like the YFZ, I will bet the YFZ can still take it (power wise) for that reason. But, how nice would it be never to worry about jetting again and to be able to "mod" your motor with a laptop instead of wrench!

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I wonder why no one else has gone with a 5 valve head like the YFZ, I would think that is the biggest peformance maker in that motor.  If the suzi has a true 450 like the YFZ, I will bet the YFZ can still take it (power wise) for that reason.  But, how nice would it be never to worry about jetting again and to be able to "mod" your motor with a laptop instead of wrench!

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Exactly. Even if its a bit more money to tinker with your bike, I'd love to never have to change a jet again.

 

The only thing I don't like about tuning with a laptop is how many variables there can be. The HyperTech programmer available for my CBR600F4i apparently will allow you to adjust the fuel/air/timing curve every 1000rpm or so. So there is a chance to dial it in exact, but you have to have a dyno available or risk having an obscure lean spot or something in the middle of your power curve.

The tunability is great, but the complexity could become overwhelming.

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Ten years from now, people might talk about the good old days when you could simply change jets.

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LOL Back in the day before there was hover bikes we had TIRES we had to put actual AIR into!!! And none of this controlling the bike by thought horseshit. We had handle bars we had to hang on to.

 

:lol:

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Oh maybe because they have these things called patents.... :shootself:

431762[/snapback]

 

Well, someone had to have been the first to release a 4 valve instead of 2 and now they all do it. If that was the case, then why not a 6 valve, or hell, a rotary (no valves)! :P

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LOL Back in the day before there was hover bikes we had TIRES we had to put actual AIR into!!! And none of this controlling the bike by thought horseshit. We had handle bars we had to hang on to.

 

:lol:

431783[/snapback]

 

:rotflmao:

 

That reminds me of Back to the Future when they go to like 2001 or something and they all have flyibg cars. Back then it was cool to watch but now it's even more funny that we pasted that date.

 

anyway... I think the mapping will be like on the street bikes where the program has some set curves so you can switch for riding style and terrian

 

I bet the yfz450 will come with efi if this bike takes off. I hope so :dance:

I like to see jetting be a thing of the past :D

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Well, someone had to have been the first to release a 4 valve instead of 2 and now they all do it.  If that was the case, then why not a 6 valve, or hell, a rotary (no valves)! :P

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Doesnt the 400ex have rotary valves? I think those kinda kick ass. I don't know much about them, other that with no rotating mass and springs to compress as in a standard valved engine, that should free up a few horsepower.

A good example of how much a valve train can eat up is the Bugatti Veyron with the W-16 engine.

 

From what I've read, the total calculated amount of energy in the air/fuel mixture coming in to the engine works out to be 3000 hp. 1000hp is soaked up just turning the valve train, 1000hp goes out as wasted heat, and the remaining 1000hp sees the drive train.

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